fix(tests): anthropic dropped haiku 3.5 (#826)

## Description
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Fix for the integration tests

## PR Type
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- 🚦 Infrastructure

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Author: njbrake

tests/conftest.py

@@ -12,7 +12,7 @@
 @pytest.fixture
 def provider_reasoning_model_map() -> dict[LLMProvider, str]:
     return {
-        LLMProvider.ANTHROPIC: "claude-sonnet-4-20250514",
+        LLMProvider.ANTHROPIC: "claude-sonnet-4-0",
         LLMProvider.MISTRAL: "magistral-small-latest",
         LLMProvider.GEMINI: "gemini-2.5-flash",
         LLMProvider.GATEWAY: "gpt-5-nano",
@@ -49,7 +49,7 @@ def provider_reasoning_model_map() -> dict[LLMProvider, str]:
 def provider_model_map() -> dict[LLMProvider, str]:
     return {
         LLMProvider.MISTRAL: "mistral-small-latest",
-        LLMProvider.ANTHROPIC: "claude-3-5-haiku-latest",
+        LLMProvider.ANTHROPIC: "claude-haiku-4-5",
         LLMProvider.DEEPSEEK: "deepseek-chat",
         LLMProvider.OPENAI: "gpt-5-nano",
         LLMProvider.GATEWAY: "gpt-5-nano",

tests/integration/test_platform.py

@@ -112,7 +112,7 @@ async def test_platform_provider_parallel_requests(platform_provider_openai: Pla
     ("provider", "model", "expected_provider_name"),
     [
         (LLMProvider.OPENAI, "gpt-5-nano", "openai"),
-        (LLMProvider.ANTHROPIC, "claude-3-5-haiku-latest", "anthropic"),
+        (LLMProvider.ANTHROPIC, "claude-haiku-4-5", "anthropic"),
         (LLMProvider.GEMINI, "gemini-3-flash-preview", "gemini"),
     ],
 )