diff --git a/models/spring-ai-vertex-ai-gemini/src/main/java/org/springframework/ai/vertexai/gemini/common/VertexAiGeminiSafetySetting.java b/models/spring-ai-vertex-ai-gemini/src/main/java/org/springframework/ai/vertexai/gemini/common/VertexAiGeminiSafetySetting.java
index 9a513cfa5f0..6d46b9d9e5b 100644
--- a/models/spring-ai-vertex-ai-gemini/src/main/java/org/springframework/ai/vertexai/gemini/common/VertexAiGeminiSafetySetting.java
+++ b/models/spring-ai-vertex-ai-gemini/src/main/java/org/springframework/ai/vertexai/gemini/common/VertexAiGeminiSafetySetting.java
@@ -18,6 +18,10 @@
 
 public class VertexAiGeminiSafetySetting {
 
+	public static Builder builder() {
+		return new Builder();
+	}
+
 	/**
 	 * Enum representing different threshold levels for blocking harmful content.
 	 */
@@ -77,51 +81,30 @@ public int getValue() {
 
 	}
 
-	private HarmCategory category;
+	private final HarmCategory category;
 
-	private HarmBlockThreshold threshold;
+	private final HarmBlockThreshold threshold;
 
-	private HarmBlockMethod method;
-
-	// Default constructor
-	public VertexAiGeminiSafetySetting() {
-		this.category = HarmCategory.HARM_CATEGORY_UNSPECIFIED;
-		this.threshold = HarmBlockThreshold.HARM_BLOCK_THRESHOLD_UNSPECIFIED;
-		this.method = HarmBlockMethod.HARM_BLOCK_METHOD_UNSPECIFIED;
-	}
+	private final HarmBlockMethod method;
 
-	// Constructor with all fields
-	public VertexAiGeminiSafetySetting(HarmCategory category, HarmBlockThreshold threshold, HarmBlockMethod method) {
+	private VertexAiGeminiSafetySetting(HarmCategory category, HarmBlockThreshold threshold, HarmBlockMethod method) {
 		this.category = category;
 		this.threshold = threshold;
 		this.method = method;
 	}
 
-	// Getters and setters
 	public HarmCategory getCategory() {
 		return this.category;
 	}
 
-	public void setCategory(HarmCategory category) {
-		this.category = category;
-	}
-
 	public HarmBlockThreshold getThreshold() {
 		return this.threshold;
 	}
 
-	public void setThreshold(HarmBlockThreshold threshold) {
-		this.threshold = threshold;
-	}
-
 	public HarmBlockMethod getMethod() {
 		return this.method;
 	}
 
-	public void setMethod(HarmBlockMethod method) {
-		this.method = method;
-	}
-
 	@Override
 	public String toString() {
 		return "SafetySetting{" + "category=" + this.category + ", threshold=" + this.threshold + ", method="
diff --git a/models/spring-ai-vertex-ai-gemini/src/test/java/org/springframework/ai/vertexai/gemini/VertexAiGeminiChatModelIT.java b/models/spring-ai-vertex-ai-gemini/src/test/java/org/springframework/ai/vertexai/gemini/VertexAiGeminiChatModelIT.java
index 2c37f0608a6..7249abd0387 100644
--- a/models/spring-ai-vertex-ai-gemini/src/test/java/org/springframework/ai/vertexai/gemini/VertexAiGeminiChatModelIT.java
+++ b/models/spring-ai-vertex-ai-gemini/src/test/java/org/springframework/ai/vertexai/gemini/VertexAiGeminiChatModelIT.java
@@ -117,7 +117,7 @@ void googleSearchToolFlash() {
 	@Test
 	@Disabled
 	void testSafetySettings() {
-		List<VertexAiGeminiSafetySetting> safetySettings = List.of(new VertexAiGeminiSafetySetting.Builder()
+		List<VertexAiGeminiSafetySetting> safetySettings = List.of(VertexAiGeminiSafetySetting.builder()
 			.withCategory(VertexAiGeminiSafetySetting.HarmCategory.HARM_CATEGORY_DANGEROUS_CONTENT)
 			.withThreshold(VertexAiGeminiSafetySetting.HarmBlockThreshold.BLOCK_LOW_AND_ABOVE)
 			.build());