Add claude haiku 4.5 model (#3183)

Author: rian-dolphin

pydantic_ai_slim/pydantic_ai/models/__init__.py

@@ -55,6 +55,8 @@
         'anthropic:claude-3-5-sonnet-20240620',
         'anthropic:claude-3-5-sonnet-20241022',
         'anthropic:claude-3-5-sonnet-latest',
+        'anthropic:claude-haiku-4-5',
+        'anthropic:claude-haiku-4-5-20251001',
         'anthropic:claude-3-7-sonnet-20250219',
         'anthropic:claude-3-7-sonnet-latest',
         'anthropic:claude-3-haiku-20240307',

pydantic_ai_slim/pyproject.toml

@@ -71,7 +71,7 @@ openai = ["openai>=1.107.2"]
 cohere = ["cohere>=5.18.0; platform_system != 'Emscripten'"]
 vertexai = ["google-auth>=2.36.0", "requests>=2.32.2"]
 google = ["google-genai>=1.31.0"]
-anthropic = ["anthropic>=0.69.0"]
+anthropic = ["anthropic>=0.70.0"]
 groq = ["groq>=0.25.0"]
 mistral = ["mistralai>=1.9.10"]
 bedrock = ["boto3>=1.39.0"]