diff --git a/openai-java-core/src/main/kotlin/com/openai/azure/AzureOpenAIServiceVersion.kt b/openai-java-core/src/main/kotlin/com/openai/azure/AzureOpenAIServiceVersion.kt
index e83b6ebc3..3b08766f7 100644
--- a/openai-java-core/src/main/kotlin/com/openai/azure/AzureOpenAIServiceVersion.kt
+++ b/openai-java-core/src/main/kotlin/com/openai/azure/AzureOpenAIServiceVersion.kt
@@ -17,7 +17,7 @@ class AzureOpenAIServiceVersion private constructor(@get:JvmName("value") val va
         @JvmStatic
         fun latestPreviewVersion(): AzureOpenAIServiceVersion {
             // We can update the value every preview announcement.
-            return V2025_01_01_PREVIEW
+            return V2025_03_01_PREVIEW
         }
 
         @JvmStatic
@@ -41,6 +41,8 @@ class AzureOpenAIServiceVersion private constructor(@get:JvmName("value") val va
         @JvmStatic val V2024_10_01_PREVIEW = fromString("2024-10-01-preview")
         @JvmStatic val V2024_12_01_PREVIEW = fromString("2024-12-01-preview")
         @JvmStatic val V2025_01_01_PREVIEW = fromString("2025-01-01-preview")
+        @JvmStatic val V2025_02_01_PREVIEW = fromString("2025-02-01-preview")
+        @JvmStatic val V2025_03_01_PREVIEW = fromString("2025-03-01-preview")
     }
 
     override fun equals(other: Any?): Boolean =
diff --git a/openai-java-core/src/main/kotlin/com/openai/azure/HttpRequestBuilderExtensions.kt b/openai-java-core/src/main/kotlin/com/openai/azure/HttpRequestBuilderExtensions.kt
index 2530d3a2d..90511d496 100644
--- a/openai-java-core/src/main/kotlin/com/openai/azure/HttpRequestBuilderExtensions.kt
+++ b/openai-java-core/src/main/kotlin/com/openai/azure/HttpRequestBuilderExtensions.kt
@@ -10,8 +10,9 @@ internal fun HttpRequest.Builder.addPathSegmentsForAzure(
     clientOptions: ClientOptions,
     deploymentModel: String?,
 ): HttpRequest.Builder = apply {
-    if (isAzureEndpoint(clientOptions.baseUrl) && deploymentModel != null) {
-        addPathSegments("openai", "deployments", deploymentModel)
+    if (isAzureEndpoint(clientOptions.baseUrl)) {
+        addPathSegment("openai")
+        deploymentModel?.let { addPathSegments("deployments", it) }
     }
 }
 
diff --git a/openai-java-core/src/main/kotlin/com/openai/core/ClientOptions.kt b/openai-java-core/src/main/kotlin/com/openai/core/ClientOptions.kt
index d81875f26..419073d71 100644
--- a/openai-java-core/src/main/kotlin/com/openai/core/ClientOptions.kt
+++ b/openai-java-core/src/main/kotlin/com/openai/core/ClientOptions.kt
@@ -35,6 +35,7 @@ private constructor(
     @get:JvmName("timeout") val timeout: Timeout,
     @get:JvmName("maxRetries") val maxRetries: Int,
     @get:JvmName("credential") val credential: Credential,
+    @get:JvmName("azureServiceVersion") val azureServiceVersion: AzureOpenAIServiceVersion?,
     private val organization: String?,
     private val project: String?,
 ) {
@@ -102,6 +103,7 @@ private constructor(
             timeout = clientOptions.timeout
             maxRetries = clientOptions.maxRetries
             credential = clientOptions.credential
+            azureServiceVersion = clientOptions.azureServiceVersion
             organization = clientOptions.organization
             project = clientOptions.project
         }
@@ -350,6 +352,7 @@ private constructor(
                 timeout,
                 maxRetries,
                 credential,
+                azureServiceVersion,
                 organization,
                 project,
             )
diff --git a/openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt b/openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
index 1630bd57c..122e68f43 100644
--- a/openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
+++ b/openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
@@ -103,11 +103,7 @@ class ResponseServiceAsyncImpl internal constructor(private val clientOptions: C
                     .addPathSegments("responses")
                     .body(json(clientOptions.jsonMapper, params._body()))
                     .build()
-                    .prepareAsync(
-                        clientOptions,
-                        params,
-                        deploymentModel = params.model().toString(),
-                    )
+                    .prepareAsync(clientOptions, params, deploymentModel = null)
             val requestOptions = requestOptions.applyDefaults(RequestOptions.from(clientOptions))
             return request
                 .thenComposeAsync { clientOptions.httpClient.executeAsync(it, requestOptions) }
@@ -148,11 +144,7 @@ class ResponseServiceAsyncImpl internal constructor(private val clientOptions: C
                         )
                     )
                     .build()
-                    .prepareAsync(
-                        clientOptions,
-                        params,
-                        deploymentModel = params.model().toString(),
-                    )
+                    .prepareAsync(clientOptions, params, deploymentModel = null)
             val requestOptions = requestOptions.applyDefaults(RequestOptions.from(clientOptions))
             return request
                 .thenComposeAsync { clientOptions.httpClient.executeAsync(it, requestOptions) }
diff --git a/openai-java-core/src/main/kotlin/com/openai/services/blocking/ResponseServiceImpl.kt b/openai-java-core/src/main/kotlin/com/openai/services/blocking/ResponseServiceImpl.kt
index 22f1b79fb..b683a7d69 100644
--- a/openai-java-core/src/main/kotlin/com/openai/services/blocking/ResponseServiceImpl.kt
+++ b/openai-java-core/src/main/kotlin/com/openai/services/blocking/ResponseServiceImpl.kt
@@ -90,7 +90,7 @@ class ResponseServiceImpl internal constructor(private val clientOptions: Client
                     .addPathSegments("responses")
                     .body(json(clientOptions.jsonMapper, params._body()))
                     .build()
-                    .prepare(clientOptions, params, deploymentModel = params.model().toString())
+                    .prepare(clientOptions, params, deploymentModel = null)
             val requestOptions = requestOptions.applyDefaults(RequestOptions.from(clientOptions))
             val response = clientOptions.httpClient.execute(request, requestOptions)
             return response.parseable {
@@ -128,7 +128,7 @@ class ResponseServiceImpl internal constructor(private val clientOptions: Client
                         )
                     )
                     .build()
-                    .prepare(clientOptions, params, deploymentModel = params.model().toString())
+                    .prepare(clientOptions, params, deploymentModel = null)
             val requestOptions = requestOptions.applyDefaults(RequestOptions.from(clientOptions))
             val response = clientOptions.httpClient.execute(request, requestOptions)
             return response.parseable {