diff --git a/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiChatClient.java b/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiChatClient.java
index 2e8a6b3a8..9ea161741 100644
--- a/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiChatClient.java
+++ b/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiChatClient.java
@@ -33,6 +33,7 @@ import org.springframework.ai.metadata.RateLimit;
 import org.springframework.ai.openai.api.OpenAiApi;
 import org.springframework.ai.openai.api.OpenAiApi.ChatCompletion;
 import org.springframework.ai.openai.api.OpenAiApi.ChatCompletionMessage;
+import org.springframework.ai.openai.api.OpenAiApi.OpenAiApiClientErrorException;
 import org.springframework.ai.openai.api.OpenAiApi.OpenAiApiException;
 import org.springframework.ai.openai.metadata.OpenAiGenerationMetadata;
 import org.springframework.ai.openai.metadata.support.OpenAiResponseHeaderExtractor;
diff --git a/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/api/OpenAiApi.java b/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/api/OpenAiApi.java
index 2a4861a69..a31c02887 100644
--- a/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/api/OpenAiApi.java
+++ b/models/spring-ai-openai/src/main/java/org/springframework/ai/openai/api/OpenAiApi.java
@@ -94,6 +94,10 @@ public class OpenAiApi {
 			@Override
 			public void handleError(ClientHttpResponse response) throws IOException {
 				if (response.getStatusCode().isError()) {
+					if (response.getStatusCode().is4xxClientError()) {
+						throw new OpenAiApiClientErrorException(String.format("%s - %s", response.getStatusCode().value(),
+							new ObjectMapper().readValue(response.getBody(), ResponseError.class)));
+					}
 					throw new OpenAiApiException(String.format("%s - %s", response.getStatusCode().value(),
 							new ObjectMapper().readValue(response.getBody(), ResponseError.class)));
 				}
@@ -124,6 +128,23 @@ public class OpenAiApi {
 		}
 	}
 
+	/**
+	 * Thrown on 4xx client errors, such as 401 - Incorrect API key provided,
+	 * 401 - You must be a member of an organization to use the API,
+	 * 429 - Rate limit reached for requests, 429 - You exceeded your current quota
+	 * , please check your plan and billing details.
+	 */
+	public static class OpenAiApiClientErrorException extends RuntimeException {
+
+		public OpenAiApiClientErrorException(String message) {
+			super(message);
+		}
+
+		public OpenAiApiClientErrorException(String message, Throwable cause) {
+			super(message, cause);
+		}
+	}
+
 	/**
 	 * API error response.
 	 * @param error Error details.