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feat(anthropic): add new Claude models and update naming conventions #4516

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merged 1 commit into from
Sep 30, 2025
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feat(anthropic): add new Claude models and update naming conventions #4516

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27 changes: 13 additions & 14 deletions .../spring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/api/AnthropicApi.java
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Original file line number Diff line number Diff line change
Expand Up @@ -275,15 +275,25 @@ private void addDefaultHeadersIfMissing(HttpHeaders headers) {
public enum ChatModel implements ChatModelDescription {

// @formatter:off
/**
* The claude-sonnet-4-5 model.
*/
CLAUDE_SONNET_4_5("claude-sonnet-4-5"),

/**
* The claude-opus-4-1 model.
*/
CLAUDE_OPUS_4_1("claude-opus-4-1"),

/**
* The claude-opus-4-0 model.
*/
CLAUDE_OPUS_4("claude-opus-4-0"),
CLAUDE_OPUS_4_0("claude-opus-4-0"),

/**
* The claude-sonnet-4-0 model.
*/
CLAUDE_SONNET_4("claude-sonnet-4-0"),
CLAUDE_SONNET_4_0("claude-sonnet-4-0"),

/**
* The claude-3-7-sonnet-latest model.
Expand Down Expand Up @@ -313,18 +323,7 @@ public enum ChatModel implements ChatModelDescription {
/**
* The CLAUDE_3_HAIKU
*/
CLAUDE_3_HAIKU("claude-3-haiku-20240307"),

// Legacy models
/**
* The CLAUDE_2_1 (Deprecated. To be removed on July 21, 2025)
*/
CLAUDE_2_1("claude-2.1"),

/**
* The CLAUDE_2_0 (Deprecated. To be removed on July 21, 2025)
*/
CLAUDE_2("claude-2.0");
CLAUDE_3_HAIKU("claude-3-haiku-20240307");

// @formatter:on

Expand Down
22 changes: 11 additions & 11 deletions ...ai-anthropic/src/test/java/org/springframework/ai/anthropic/AnthropicPromptCachingIT.java
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,7 @@ void shouldCacheSystemMessageOnly() {
String systemPrompt = loadPrompt("system-only-cache-prompt.txt");

AnthropicChatOptions options = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.SYSTEM_ONLY).build())
.maxTokens(150)
.temperature(0.3)
Expand Down Expand Up @@ -142,7 +142,7 @@ void shouldCacheSystemAndTools() {
MockWeatherService weatherService = new MockWeatherService();

AnthropicChatOptions options = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.SYSTEM_AND_TOOLS).build())
.maxTokens(200)
.temperature(0.3)
Expand Down Expand Up @@ -233,7 +233,7 @@ void shouldCacheConversationHistory() {
String response = chatClient.prompt()
.user("What career advice would you give me based on our conversation?")
.options(AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(
AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.CONVERSATION_HISTORY).build())
.maxTokens(200)
Expand All @@ -258,7 +258,7 @@ void shouldRespectMinLengthForSystemCaching() {
String systemPrompt = loadPrompt("system-only-cache-prompt.txt");

AnthropicChatOptions options = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder()
.strategy(AnthropicCacheStrategy.SYSTEM_ONLY)
// Set min length above actual system prompt length to prevent caching
Expand Down Expand Up @@ -287,7 +287,7 @@ void shouldRespectMinLengthForUserHistoryCaching() {

// Set USER min length high so caching should not apply
AnthropicChatOptions noCacheOptions = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder()
.strategy(AnthropicCacheStrategy.CONVERSATION_HISTORY)
.messageTypeMinContentLength(MessageType.USER, userMessage.length() + 1)
Expand All @@ -305,7 +305,7 @@ void shouldRespectMinLengthForUserHistoryCaching() {

// Now allow caching by lowering the USER min length
AnthropicChatOptions cacheOptions = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder()
.strategy(AnthropicCacheStrategy.CONVERSATION_HISTORY)
.messageTypeMinContentLength(MessageType.USER, userMessage.length() - 1)
Expand Down Expand Up @@ -334,7 +334,7 @@ void shouldRespectAllButLastUserMessageForUserHistoryCaching() {
// The combined length of the first two USER messages exceeds the min length,
// so caching should apply
AnthropicChatOptions cacheOptions = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder()
.strategy(AnthropicCacheStrategy.CONVERSATION_HISTORY)
.messageTypeMinContentLength(MessageType.USER, userMessage.length())
Expand All @@ -357,7 +357,7 @@ void shouldHandleExtendedTtlCaching() {
String systemPrompt = loadPrompt("extended-ttl-cache-prompt.txt");

AnthropicChatOptions options = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder()
.strategy(AnthropicCacheStrategy.SYSTEM_ONLY)
.messageTypeTtl(MessageType.SYSTEM, AnthropicCacheTtl.ONE_HOUR)
Expand Down Expand Up @@ -398,7 +398,7 @@ void shouldNotCacheWithNoneStrategy() {
String systemPrompt = "You are a helpful assistant.";

AnthropicChatOptions options = AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.NONE).build())
.maxTokens(50)
.temperature(0.3)
Expand Down Expand Up @@ -428,15 +428,15 @@ void shouldHandleMultipleCacheStrategiesInSession() {
responses.add(this.chatModel.call(new Prompt(
List.of(new SystemMessage("You are a math tutor."), new UserMessage("What is calculus?")),
AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.SYSTEM_ONLY).build())
.maxTokens(100)
.build())));

// Second: No caching
responses.add(this.chatModel.call(new Prompt(List.of(new UserMessage("What's 5+5?")),
AnthropicChatOptions.builder()
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4.getValue())
.model(AnthropicApi.ChatModel.CLAUDE_SONNET_4_0.getValue())
.cacheOptions(AnthropicCacheOptions.builder().strategy(AnthropicCacheStrategy.NONE).build())
.maxTokens(50)
.build())));
Expand Down