diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 1bc571363..7412044d8 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.7.1"
+  ".": "0.7.2"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9600b4c7a..4972ae32d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.7.2 (2024-12-11)
+
+Full Changelog: [v0.7.1...v0.7.2](https://github.com/openai/openai-java/compare/v0.7.1...v0.7.2)
+
+### Chores
+
+* update example values in tests and docs ([#33](https://github.com/openai/openai-java/issues/33)) ([e74f2b5](https://github.com/openai/openai-java/commit/e74f2b571857879b6a40351c572ab063eb1f18f5))
+
 ## 0.7.1 (2024-12-09)
 
 Full Changelog: [v0.7.0...v0.7.1](https://github.com/openai/openai-java/compare/v0.7.0...v0.7.1)
diff --git a/README.md b/README.md
index 6d3c96a6a..4fc24412c 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.openai/openai-java)](https://central.sonatype.com/artifact/com.openai/openai-java/0.7.1)
+[![Maven Central](https://img.shields.io/maven-central/v/com.openai/openai-java)](https://central.sonatype.com/artifact/com.openai/openai-java/0.7.2)
 
 <!-- x-release-please-end -->
 
@@ -30,7 +30,7 @@ The REST API documentation can be found on [platform.openai.com](https://platfo
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java:0.7.1")
+implementation("com.openai:openai-java:0.7.2")
 ```
 
 #### Maven
@@ -39,7 +39,7 @@ implementation("com.openai:openai-java:0.7.1")
 <dependency>
     <groupId>com.openai</groupId>
     <artifactId>openai-java</artifactId>
-    <version>0.7.1</version>
+    <version>0.7.2</version>
 </dependency>
 ```
 
@@ -92,10 +92,10 @@ import java.util.List;
 
 ChatCompletionCreateParams params = ChatCompletionCreateParams.builder()
     .message(List.of(ChatCompletionMessageParam.ofChatCompletionUserMessageParam(ChatCompletionUserMessageParam.builder()
+        .role(ChatCompletionUserMessageParam.Role.USER)
         .content(ChatCompletionUserMessageParam.Content.ofTextContent("Say this is a test"))
-        .role(ChatCompletionUserMessageParam.Role.user)
         .build())))
-    .model("gpt-4o")
+    .model(ChatModel.O1_PREVIEW)
     .build();
 ChatCompletion chatCompletion = client.chat().completions().create(params);
 ```
diff --git a/build.gradle.kts b/build.gradle.kts
index c7289bb3e..f91481cd9 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ plugins {
 
 allprojects {
     group = "com.openai"
-    version = "0.7.1" // x-release-please-version
+    version = "0.7.2" // x-release-please-version
 }
 
 
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/BatchCreateParamsTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/BatchCreateParamsTest.kt
index fd23d07ba..bbb81418b 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/BatchCreateParamsTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/BatchCreateParamsTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import com.openai.models.*
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
@@ -14,7 +15,11 @@ class BatchCreateParamsTest {
             .completionWindow(BatchCreateParams.CompletionWindow._24H)
             .endpoint(BatchCreateParams.Endpoint.V1_CHAT_COMPLETIONS)
             .inputFileId("input_file_id")
-            .metadata(BatchCreateParams.Metadata.builder().build())
+            .metadata(
+                BatchCreateParams.Metadata.builder()
+                    .putAdditionalProperty("foo", JsonValue.from("string"))
+                    .build()
+            )
             .build()
     }
 
@@ -25,14 +30,23 @@ class BatchCreateParamsTest {
                 .completionWindow(BatchCreateParams.CompletionWindow._24H)
                 .endpoint(BatchCreateParams.Endpoint.V1_CHAT_COMPLETIONS)
                 .inputFileId("input_file_id")
-                .metadata(BatchCreateParams.Metadata.builder().build())
+                .metadata(
+                    BatchCreateParams.Metadata.builder()
+                        .putAdditionalProperty("foo", JsonValue.from("string"))
+                        .build()
+                )
                 .build()
         val body = params.getBody()
         assertThat(body).isNotNull
         assertThat(body.completionWindow()).isEqualTo(BatchCreateParams.CompletionWindow._24H)
         assertThat(body.endpoint()).isEqualTo(BatchCreateParams.Endpoint.V1_CHAT_COMPLETIONS)
         assertThat(body.inputFileId()).isEqualTo("input_file_id")
-        assertThat(body.metadata()).isEqualTo(BatchCreateParams.Metadata.builder().build())
+        assertThat(body.metadata())
+            .isEqualTo(
+                BatchCreateParams.Metadata.builder()
+                    .putAdditionalProperty("foo", JsonValue.from("string"))
+                    .build()
+            )
     }
 
     @Test
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/BatchTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/BatchTest.kt
index 163e6ad7c..7d9226ba9 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/BatchTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/BatchTest.kt
@@ -2,7 +2,7 @@
 
 package com.openai.models
 
-import com.openai.core.JsonNull
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -43,7 +43,7 @@ class BatchTest {
                 .failedAt(0L)
                 .finalizingAt(0L)
                 .inProgressAt(0L)
-                .metadata(JsonNull.of())
+                .metadata(JsonValue.from(mapOf<String, Any>()))
                 .outputFileId("output_file_id")
                 .requestCounts(
                     BatchRequestCounts.builder().completed(0L).failed(0L).total(0L).build()
@@ -82,7 +82,7 @@ class BatchTest {
         assertThat(batch.failedAt()).contains(0L)
         assertThat(batch.finalizingAt()).contains(0L)
         assertThat(batch.inProgressAt()).contains(0L)
-        assertThat(batch._metadata()).isEqualTo(JsonNull.of())
+        assertThat(batch._metadata()).isEqualTo(JsonValue.from(mapOf<String, Any>()))
         assertThat(batch.outputFileId()).contains("output_file_id")
         assertThat(batch.requestCounts())
             .contains(BatchRequestCounts.builder().completed(0L).failed(0L).total(0L).build())
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionCreateParamsTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionCreateParamsTest.kt
index 500c69f3e..ffc1f055b 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionCreateParamsTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionCreateParamsTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import com.openai.models.*
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
@@ -42,15 +43,27 @@ class ChatCompletionCreateParamsTest {
                     ChatCompletionCreateParams.Function.builder()
                         .name("name")
                         .description("description")
-                        .parameters(FunctionParameters.builder().build())
+                        .parameters(
+                            FunctionParameters.builder()
+                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                .build()
+                        )
                         .build()
                 )
             )
-            .logitBias(ChatCompletionCreateParams.LogitBias.builder().build())
+            .logitBias(
+                ChatCompletionCreateParams.LogitBias.builder()
+                    .putAdditionalProperty("foo", JsonValue.from(0))
+                    .build()
+            )
             .logprobs(true)
             .maxCompletionTokens(0L)
             .maxTokens(0L)
-            .metadata(ChatCompletionCreateParams.Metadata.builder().build())
+            .metadata(
+                ChatCompletionCreateParams.Metadata.builder()
+                    .putAdditionalProperty("foo", JsonValue.from("string"))
+                    .build()
+            )
             .modalities(listOf(ChatCompletionModality.TEXT))
             .n(1L)
             .parallelToolCalls(true)
@@ -84,7 +97,11 @@ class ChatCompletionCreateParamsTest {
                             FunctionDefinition.builder()
                                 .name("name")
                                 .description("description")
-                                .parameters(FunctionParameters.builder().build())
+                                .parameters(
+                                    FunctionParameters.builder()
+                                        .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                        .build()
+                                )
                                 .strict(true)
                                 .build()
                         )
@@ -133,15 +150,27 @@ class ChatCompletionCreateParamsTest {
                         ChatCompletionCreateParams.Function.builder()
                             .name("name")
                             .description("description")
-                            .parameters(FunctionParameters.builder().build())
+                            .parameters(
+                                FunctionParameters.builder()
+                                    .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                    .build()
+                            )
                             .build()
                     )
                 )
-                .logitBias(ChatCompletionCreateParams.LogitBias.builder().build())
+                .logitBias(
+                    ChatCompletionCreateParams.LogitBias.builder()
+                        .putAdditionalProperty("foo", JsonValue.from(0))
+                        .build()
+                )
                 .logprobs(true)
                 .maxCompletionTokens(0L)
                 .maxTokens(0L)
-                .metadata(ChatCompletionCreateParams.Metadata.builder().build())
+                .metadata(
+                    ChatCompletionCreateParams.Metadata.builder()
+                        .putAdditionalProperty("foo", JsonValue.from("string"))
+                        .build()
+                )
                 .modalities(listOf(ChatCompletionModality.TEXT))
                 .n(1L)
                 .parallelToolCalls(true)
@@ -175,7 +204,11 @@ class ChatCompletionCreateParamsTest {
                                 FunctionDefinition.builder()
                                     .name("name")
                                     .description("description")
-                                    .parameters(FunctionParameters.builder().build())
+                                    .parameters(
+                                        FunctionParameters.builder()
+                                            .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                            .build()
+                                    )
                                     .strict(true)
                                     .build()
                             )
@@ -224,16 +257,29 @@ class ChatCompletionCreateParamsTest {
                     ChatCompletionCreateParams.Function.builder()
                         .name("name")
                         .description("description")
-                        .parameters(FunctionParameters.builder().build())
+                        .parameters(
+                            FunctionParameters.builder()
+                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                .build()
+                        )
                         .build()
                 )
             )
         assertThat(body.logitBias())
-            .isEqualTo(ChatCompletionCreateParams.LogitBias.builder().build())
+            .isEqualTo(
+                ChatCompletionCreateParams.LogitBias.builder()
+                    .putAdditionalProperty("foo", JsonValue.from(0))
+                    .build()
+            )
         assertThat(body.logprobs()).isEqualTo(true)
         assertThat(body.maxCompletionTokens()).isEqualTo(0L)
         assertThat(body.maxTokens()).isEqualTo(0L)
-        assertThat(body.metadata()).isEqualTo(ChatCompletionCreateParams.Metadata.builder().build())
+        assertThat(body.metadata())
+            .isEqualTo(
+                ChatCompletionCreateParams.Metadata.builder()
+                    .putAdditionalProperty("foo", JsonValue.from("string"))
+                    .build()
+            )
         assertThat(body.modalities()).isEqualTo(listOf(ChatCompletionModality.TEXT))
         assertThat(body.n()).isEqualTo(1L)
         assertThat(body.parallelToolCalls()).isEqualTo(true)
@@ -272,7 +318,11 @@ class ChatCompletionCreateParamsTest {
                             FunctionDefinition.builder()
                                 .name("name")
                                 .description("description")
-                                .parameters(FunctionParameters.builder().build())
+                                .parameters(
+                                    FunctionParameters.builder()
+                                        .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                        .build()
+                                )
                                 .strict(true)
                                 .build()
                         )
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionToolTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionToolTest.kt
index adf7d0dc4..613c31e37 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionToolTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/ChatCompletionToolTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -15,7 +16,11 @@ class ChatCompletionToolTest {
                     FunctionDefinition.builder()
                         .name("name")
                         .description("description")
-                        .parameters(FunctionParameters.builder().build())
+                        .parameters(
+                            FunctionParameters.builder()
+                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                .build()
+                        )
                         .strict(true)
                         .build()
                 )
@@ -27,7 +32,11 @@ class ChatCompletionToolTest {
                 FunctionDefinition.builder()
                     .name("name")
                     .description("description")
-                    .parameters(FunctionParameters.builder().build())
+                    .parameters(
+                        FunctionParameters.builder()
+                            .putAdditionalProperty("foo", JsonValue.from("bar"))
+                            .build()
+                    )
                     .strict(true)
                     .build()
             )
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/CompletionChoiceTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/CompletionChoiceTest.kt
index a1de20400..4f6f5d28e 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/CompletionChoiceTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/CompletionChoiceTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -18,7 +19,13 @@ class CompletionChoiceTest {
                         .textOffset(listOf(0L))
                         .tokenLogprobs(listOf(0.0))
                         .tokens(listOf("string"))
-                        .topLogprobs(listOf(CompletionChoice.Logprobs.TopLogprob.builder().build()))
+                        .topLogprobs(
+                            listOf(
+                                CompletionChoice.Logprobs.TopLogprob.builder()
+                                    .putAdditionalProperty("foo", JsonValue.from(0))
+                                    .build()
+                            )
+                        )
                         .build()
                 )
                 .text("text")
@@ -32,7 +39,13 @@ class CompletionChoiceTest {
                     .textOffset(listOf(0L))
                     .tokenLogprobs(listOf(0.0))
                     .tokens(listOf("string"))
-                    .topLogprobs(listOf(CompletionChoice.Logprobs.TopLogprob.builder().build()))
+                    .topLogprobs(
+                        listOf(
+                            CompletionChoice.Logprobs.TopLogprob.builder()
+                                .putAdditionalProperty("foo", JsonValue.from(0))
+                                .build()
+                        )
+                    )
                     .build()
             )
         assertThat(completionChoice.text()).isEqualTo("text")
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/CompletionCreateParamsTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/CompletionCreateParamsTest.kt
index 21ff1f1ae..a1419ce9d 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/CompletionCreateParamsTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/CompletionCreateParamsTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import com.openai.models.*
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
@@ -16,7 +17,11 @@ class CompletionCreateParamsTest {
             .bestOf(0L)
             .echo(true)
             .frequencyPenalty(-2.0)
-            .logitBias(CompletionCreateParams.LogitBias.builder().build())
+            .logitBias(
+                CompletionCreateParams.LogitBias.builder()
+                    .putAdditionalProperty("foo", JsonValue.from(0))
+                    .build()
+            )
             .logprobs(0L)
             .maxTokens(16L)
             .n(1L)
@@ -40,7 +45,11 @@ class CompletionCreateParamsTest {
                 .bestOf(0L)
                 .echo(true)
                 .frequencyPenalty(-2.0)
-                .logitBias(CompletionCreateParams.LogitBias.builder().build())
+                .logitBias(
+                    CompletionCreateParams.LogitBias.builder()
+                        .putAdditionalProperty("foo", JsonValue.from(0))
+                        .build()
+                )
                 .logprobs(0L)
                 .maxTokens(16L)
                 .n(1L)
@@ -61,7 +70,12 @@ class CompletionCreateParamsTest {
         assertThat(body.bestOf()).isEqualTo(0L)
         assertThat(body.echo()).isEqualTo(true)
         assertThat(body.frequencyPenalty()).isEqualTo(-2.0)
-        assertThat(body.logitBias()).isEqualTo(CompletionCreateParams.LogitBias.builder().build())
+        assertThat(body.logitBias())
+            .isEqualTo(
+                CompletionCreateParams.LogitBias.builder()
+                    .putAdditionalProperty("foo", JsonValue.from(0))
+                    .build()
+            )
         assertThat(body.logprobs()).isEqualTo(0L)
         assertThat(body.maxTokens()).isEqualTo(16L)
         assertThat(body.n()).isEqualTo(1L)
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/CompletionTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/CompletionTest.kt
index b2c79165f..8c9d34cf5 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/CompletionTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/CompletionTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -24,7 +25,9 @@ class CompletionTest {
                                     .tokens(listOf("string"))
                                     .topLogprobs(
                                         listOf(
-                                            CompletionChoice.Logprobs.TopLogprob.builder().build()
+                                            CompletionChoice.Logprobs.TopLogprob.builder()
+                                                .putAdditionalProperty("foo", JsonValue.from(0))
+                                                .build()
                                         )
                                     )
                                     .build()
@@ -72,7 +75,11 @@ class CompletionTest {
                             .tokenLogprobs(listOf(0.0))
                             .tokens(listOf("string"))
                             .topLogprobs(
-                                listOf(CompletionChoice.Logprobs.TopLogprob.builder().build())
+                                listOf(
+                                    CompletionChoice.Logprobs.TopLogprob.builder()
+                                        .putAdditionalProperty("foo", JsonValue.from(0))
+                                        .build()
+                                )
                             )
                             .build()
                     )
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/EmbeddingCreateParamsTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/EmbeddingCreateParamsTest.kt
index 910bb2c4b..b2b8eb8d9 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/EmbeddingCreateParamsTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/EmbeddingCreateParamsTest.kt
@@ -11,7 +11,9 @@ class EmbeddingCreateParamsTest {
     @Test
     fun createEmbeddingCreateParams() {
         EmbeddingCreateParams.builder()
-            .input(EmbeddingCreateParams.Input.ofString("This is a test."))
+            .input(
+                EmbeddingCreateParams.Input.ofString("The quick brown fox jumped over the lazy dog")
+            )
             .model(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
             .dimensions(1L)
             .encodingFormat(EmbeddingCreateParams.EncodingFormat.FLOAT)
@@ -23,7 +25,11 @@ class EmbeddingCreateParamsTest {
     fun getBody() {
         val params =
             EmbeddingCreateParams.builder()
-                .input(EmbeddingCreateParams.Input.ofString("This is a test."))
+                .input(
+                    EmbeddingCreateParams.Input.ofString(
+                        "The quick brown fox jumped over the lazy dog"
+                    )
+                )
                 .model(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
                 .dimensions(1L)
                 .encodingFormat(EmbeddingCreateParams.EncodingFormat.FLOAT)
@@ -31,7 +37,10 @@ class EmbeddingCreateParamsTest {
                 .build()
         val body = params.getBody()
         assertThat(body).isNotNull
-        assertThat(body.input()).isEqualTo(EmbeddingCreateParams.Input.ofString("This is a test."))
+        assertThat(body.input())
+            .isEqualTo(
+                EmbeddingCreateParams.Input.ofString("The quick brown fox jumped over the lazy dog")
+            )
         assertThat(body.model()).isEqualTo(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
         assertThat(body.dimensions()).isEqualTo(1L)
         assertThat(body.encodingFormat()).isEqualTo(EmbeddingCreateParams.EncodingFormat.FLOAT)
@@ -42,12 +51,19 @@ class EmbeddingCreateParamsTest {
     fun getBodyWithoutOptionalFields() {
         val params =
             EmbeddingCreateParams.builder()
-                .input(EmbeddingCreateParams.Input.ofString("This is a test."))
+                .input(
+                    EmbeddingCreateParams.Input.ofString(
+                        "The quick brown fox jumped over the lazy dog"
+                    )
+                )
                 .model(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
                 .build()
         val body = params.getBody()
         assertThat(body).isNotNull
-        assertThat(body.input()).isEqualTo(EmbeddingCreateParams.Input.ofString("This is a test."))
+        assertThat(body.input())
+            .isEqualTo(
+                EmbeddingCreateParams.Input.ofString("The quick brown fox jumped over the lazy dog")
+            )
         assertThat(body.model()).isEqualTo(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
     }
 }
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/FunctionDefinitionTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/FunctionDefinitionTest.kt
index e30c8d6ce..205099d29 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/FunctionDefinitionTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/FunctionDefinitionTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -13,13 +14,22 @@ class FunctionDefinitionTest {
             FunctionDefinition.builder()
                 .name("name")
                 .description("description")
-                .parameters(FunctionParameters.builder().build())
+                .parameters(
+                    FunctionParameters.builder()
+                        .putAdditionalProperty("foo", JsonValue.from("bar"))
+                        .build()
+                )
                 .strict(true)
                 .build()
         assertThat(functionDefinition).isNotNull
         assertThat(functionDefinition.name()).isEqualTo("name")
         assertThat(functionDefinition.description()).contains("description")
-        assertThat(functionDefinition.parameters()).contains(FunctionParameters.builder().build())
+        assertThat(functionDefinition.parameters())
+            .contains(
+                FunctionParameters.builder()
+                    .putAdditionalProperty("foo", JsonValue.from("bar"))
+                    .build()
+            )
         assertThat(functionDefinition.strict()).contains(true)
     }
 }
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/FunctionParametersTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/FunctionParametersTest.kt
index 01460e366..9a78f71af 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/FunctionParametersTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/FunctionParametersTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -9,7 +10,8 @@ class FunctionParametersTest {
 
     @Test
     fun createFunctionParameters() {
-        val functionParameters = FunctionParameters.builder().build()
+        val functionParameters =
+            FunctionParameters.builder().putAdditionalProperty("foo", JsonValue.from("bar")).build()
         assertThat(functionParameters).isNotNull
     }
 }
diff --git a/openai-java-core/src/test/kotlin/com/openai/models/ResponseFormatJsonSchemaTest.kt b/openai-java-core/src/test/kotlin/com/openai/models/ResponseFormatJsonSchemaTest.kt
index 064142723..df5aae89c 100644
--- a/openai-java-core/src/test/kotlin/com/openai/models/ResponseFormatJsonSchemaTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/models/ResponseFormatJsonSchemaTest.kt
@@ -2,6 +2,7 @@
 
 package com.openai.models
 
+import com.openai.core.JsonValue
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
@@ -15,7 +16,11 @@ class ResponseFormatJsonSchemaTest {
                     ResponseFormatJsonSchema.JsonSchema.builder()
                         .name("name")
                         .description("description")
-                        .schema(ResponseFormatJsonSchema.JsonSchema.Schema.builder().build())
+                        .schema(
+                            ResponseFormatJsonSchema.JsonSchema.Schema.builder()
+                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                .build()
+                        )
                         .strict(true)
                         .build()
                 )
@@ -27,7 +32,11 @@ class ResponseFormatJsonSchemaTest {
                 ResponseFormatJsonSchema.JsonSchema.builder()
                     .name("name")
                     .description("description")
-                    .schema(ResponseFormatJsonSchema.JsonSchema.Schema.builder().build())
+                    .schema(
+                        ResponseFormatJsonSchema.JsonSchema.Schema.builder()
+                            .putAdditionalProperty("foo", JsonValue.from("bar"))
+                            .build()
+                    )
                     .strict(true)
                     .build()
             )
diff --git a/openai-java-core/src/test/kotlin/com/openai/services/ServiceParamsTest.kt b/openai-java-core/src/test/kotlin/com/openai/services/ServiceParamsTest.kt
index b93e15de4..ab5fd0df9 100644
--- a/openai-java-core/src/test/kotlin/com/openai/services/ServiceParamsTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/services/ServiceParamsTest.kt
@@ -89,15 +89,27 @@ class ServiceParamsTest {
                         ChatCompletionCreateParams.Function.builder()
                             .name("name")
                             .description("description")
-                            .parameters(FunctionParameters.builder().build())
+                            .parameters(
+                                FunctionParameters.builder()
+                                    .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                    .build()
+                            )
                             .build()
                     )
                 )
-                .logitBias(ChatCompletionCreateParams.LogitBias.builder().build())
+                .logitBias(
+                    ChatCompletionCreateParams.LogitBias.builder()
+                        .putAdditionalProperty("foo", JsonValue.from(0))
+                        .build()
+                )
                 .logprobs(true)
                 .maxCompletionTokens(0L)
                 .maxTokens(0L)
-                .metadata(ChatCompletionCreateParams.Metadata.builder().build())
+                .metadata(
+                    ChatCompletionCreateParams.Metadata.builder()
+                        .putAdditionalProperty("foo", JsonValue.from("string"))
+                        .build()
+                )
                 .modalities(listOf(ChatCompletionModality.TEXT))
                 .n(1L)
                 .parallelToolCalls(true)
@@ -131,7 +143,11 @@ class ServiceParamsTest {
                                 FunctionDefinition.builder()
                                     .name("name")
                                     .description("description")
-                                    .parameters(FunctionParameters.builder().build())
+                                    .parameters(
+                                        FunctionParameters.builder()
+                                            .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                            .build()
+                                    )
                                     .strict(true)
                                     .build()
                             )
diff --git a/openai-java-core/src/test/kotlin/com/openai/services/blocking/BatchServiceTest.kt b/openai-java-core/src/test/kotlin/com/openai/services/blocking/BatchServiceTest.kt
index 7d54a03f9..4c74fd2ba 100644
--- a/openai-java-core/src/test/kotlin/com/openai/services/blocking/BatchServiceTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/services/blocking/BatchServiceTest.kt
@@ -4,6 +4,7 @@ package com.openai.services.blocking
 
 import com.openai.TestServerExtension
 import com.openai.client.okhttp.OpenAIOkHttpClient
+import com.openai.core.JsonValue
 import com.openai.models.*
 import com.openai.models.BatchListParams
 import org.junit.jupiter.api.Test
@@ -26,7 +27,11 @@ class BatchServiceTest {
                     .completionWindow(BatchCreateParams.CompletionWindow._24H)
                     .endpoint(BatchCreateParams.Endpoint.V1_CHAT_COMPLETIONS)
                     .inputFileId("input_file_id")
-                    .metadata(BatchCreateParams.Metadata.builder().build())
+                    .metadata(
+                        BatchCreateParams.Metadata.builder()
+                            .putAdditionalProperty("foo", JsonValue.from("string"))
+                            .build()
+                    )
                     .build()
             )
         println(batch)
diff --git a/openai-java-core/src/test/kotlin/com/openai/services/blocking/CompletionServiceTest.kt b/openai-java-core/src/test/kotlin/com/openai/services/blocking/CompletionServiceTest.kt
index 1983d8505..ed85d0051 100644
--- a/openai-java-core/src/test/kotlin/com/openai/services/blocking/CompletionServiceTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/services/blocking/CompletionServiceTest.kt
@@ -4,6 +4,7 @@ package com.openai.services.blocking
 
 import com.openai.TestServerExtension
 import com.openai.client.okhttp.OpenAIOkHttpClient
+import com.openai.core.JsonValue
 import com.openai.models.*
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
@@ -27,7 +28,11 @@ class CompletionServiceTest {
                     .bestOf(0L)
                     .echo(true)
                     .frequencyPenalty(-2.0)
-                    .logitBias(CompletionCreateParams.LogitBias.builder().build())
+                    .logitBias(
+                        CompletionCreateParams.LogitBias.builder()
+                            .putAdditionalProperty("foo", JsonValue.from(0))
+                            .build()
+                    )
                     .logprobs(0L)
                     .maxTokens(16L)
                     .n(1L)
@@ -62,7 +67,11 @@ class CompletionServiceTest {
                     .bestOf(0L)
                     .echo(true)
                     .frequencyPenalty(-2.0)
-                    .logitBias(CompletionCreateParams.LogitBias.builder().build())
+                    .logitBias(
+                        CompletionCreateParams.LogitBias.builder()
+                            .putAdditionalProperty("foo", JsonValue.from(0))
+                            .build()
+                    )
                     .logprobs(0L)
                     .maxTokens(16L)
                     .n(1L)
diff --git a/openai-java-core/src/test/kotlin/com/openai/services/blocking/EmbeddingServiceTest.kt b/openai-java-core/src/test/kotlin/com/openai/services/blocking/EmbeddingServiceTest.kt
index 5dae5d0c8..29636b678 100644
--- a/openai-java-core/src/test/kotlin/com/openai/services/blocking/EmbeddingServiceTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/services/blocking/EmbeddingServiceTest.kt
@@ -22,7 +22,11 @@ class EmbeddingServiceTest {
         val createEmbeddingResponse =
             embeddingService.create(
                 EmbeddingCreateParams.builder()
-                    .input(EmbeddingCreateParams.Input.ofString("This is a test."))
+                    .input(
+                        EmbeddingCreateParams.Input.ofString(
+                            "The quick brown fox jumped over the lazy dog"
+                        )
+                    )
                     .model(EmbeddingModel.TEXT_EMBEDDING_ADA_002)
                     .dimensions(1L)
                     .encodingFormat(EmbeddingCreateParams.EncodingFormat.FLOAT)
diff --git a/openai-java-core/src/test/kotlin/com/openai/services/blocking/chat/CompletionServiceTest.kt b/openai-java-core/src/test/kotlin/com/openai/services/blocking/chat/CompletionServiceTest.kt
index 894841aad..b044e459b 100644
--- a/openai-java-core/src/test/kotlin/com/openai/services/blocking/chat/CompletionServiceTest.kt
+++ b/openai-java-core/src/test/kotlin/com/openai/services/blocking/chat/CompletionServiceTest.kt
@@ -4,6 +4,7 @@ package com.openai.services.blocking.chat
 
 import com.openai.TestServerExtension
 import com.openai.client.okhttp.OpenAIOkHttpClient
+import com.openai.core.JsonValue
 import com.openai.models.*
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
@@ -55,15 +56,27 @@ class CompletionServiceTest {
                             ChatCompletionCreateParams.Function.builder()
                                 .name("name")
                                 .description("description")
-                                .parameters(FunctionParameters.builder().build())
+                                .parameters(
+                                    FunctionParameters.builder()
+                                        .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                        .build()
+                                )
                                 .build()
                         )
                     )
-                    .logitBias(ChatCompletionCreateParams.LogitBias.builder().build())
+                    .logitBias(
+                        ChatCompletionCreateParams.LogitBias.builder()
+                            .putAdditionalProperty("foo", JsonValue.from(0))
+                            .build()
+                    )
                     .logprobs(true)
                     .maxCompletionTokens(0L)
                     .maxTokens(0L)
-                    .metadata(ChatCompletionCreateParams.Metadata.builder().build())
+                    .metadata(
+                        ChatCompletionCreateParams.Metadata.builder()
+                            .putAdditionalProperty("foo", JsonValue.from("string"))
+                            .build()
+                    )
                     .modalities(listOf(ChatCompletionModality.TEXT))
                     .n(1L)
                     .parallelToolCalls(true)
@@ -99,7 +112,11 @@ class CompletionServiceTest {
                                     FunctionDefinition.builder()
                                         .name("name")
                                         .description("description")
-                                        .parameters(FunctionParameters.builder().build())
+                                        .parameters(
+                                            FunctionParameters.builder()
+                                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                                .build()
+                                        )
                                         .strict(true)
                                         .build()
                                 )
@@ -161,15 +178,27 @@ class CompletionServiceTest {
                             ChatCompletionCreateParams.Function.builder()
                                 .name("name")
                                 .description("description")
-                                .parameters(FunctionParameters.builder().build())
+                                .parameters(
+                                    FunctionParameters.builder()
+                                        .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                        .build()
+                                )
                                 .build()
                         )
                     )
-                    .logitBias(ChatCompletionCreateParams.LogitBias.builder().build())
+                    .logitBias(
+                        ChatCompletionCreateParams.LogitBias.builder()
+                            .putAdditionalProperty("foo", JsonValue.from(0))
+                            .build()
+                    )
                     .logprobs(true)
                     .maxCompletionTokens(0L)
                     .maxTokens(0L)
-                    .metadata(ChatCompletionCreateParams.Metadata.builder().build())
+                    .metadata(
+                        ChatCompletionCreateParams.Metadata.builder()
+                            .putAdditionalProperty("foo", JsonValue.from("string"))
+                            .build()
+                    )
                     .modalities(listOf(ChatCompletionModality.TEXT))
                     .n(1L)
                     .parallelToolCalls(true)
@@ -205,7 +234,11 @@ class CompletionServiceTest {
                                     FunctionDefinition.builder()
                                         .name("name")
                                         .description("description")
-                                        .parameters(FunctionParameters.builder().build())
+                                        .parameters(
+                                            FunctionParameters.builder()
+                                                .putAdditionalProperty("foo", JsonValue.from("bar"))
+                                                .build()
+                                        )
                                         .strict(true)
                                         .build()
                                 )