claude-3-7-sonnet-20250219

模型描述

Claude 3.7 Sonnet represents a significant leap in AI capabilities as the market’s first hybrid reasoning model, seamlessly integrating rapid responses with deliberate, step-by-step problem-solving. Unlike traditional models that separate fast and deep reasoning, it unifies both approaches in a single system, allowing users to toggle between standard (instant) and extended thinking modes—the latter visibly refining answers for complex tasks like coding, physics, or instruction-following. API users gain fine-grained control over thinking duration (up to 128K output tokens), enabling cost-speed-quality tradeoffs. Optimized for practical applications, it excels in real-world benchmarks (e.g., 70.3% on SWE-bench Verified with scaffolding) and outperforms predecessors in coding, full-stack updates, and agent workflows, as validated by partners like Vercel and Replit. Safety improvements include 45% fewer false refusals and robust defenses against prompt injections.

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