Claude 4 Sonnet 20250514
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%), Sonnet 4 balances capability and computational efficiency, making it suitable for a broad range of applications from routine coding tasks to complex software development projects. Key enhancements include improved autonomous codebase navigation, reduced error rates in agent-driven workflows, and increased reliability in following intricate instructions. Sonnet 4 is optimized for practical everyday use, providing advanced reasoning capabilities while maintaining efficiency and responsiveness in diverse internal and external scenarios. Read more at the blog post here
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main.py
from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="anthropic/claude-sonnet-4-20250514", messages=[{"role": "user", "content": "Hello!"}], extra_body={ "fallback_models": ["claude-sonnet-4-20250514"], },)print(response.choices[0].message.content)from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="anthropic/claude-sonnet-4-20250514", messages=[{"role": "user", "content": "Hello!"}], extra_body={ "fallback_models": ["claude-sonnet-4-20250514"], },)print(response.choices[0].message.content)Providers
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