Claude Sonnet 5.5 vs. GPT-6.1 Sol

Quick Verdict: Route autonomous coding to Claude Sonnet 5.5 (82.9% SWE-bench Verified), hard scientific reasoning to GPT-6.1 Sol (93.2% GPQA Diamond), and high-volume cost-sensitive workloads to Claude Sonnet 5.5.

Claude Sonnet 5.5 (Anthropic)

92.8 pt

SWE: 82.9% · GPQA: 91.4% · $3.00/1M · Adopt Now

GPT-6.1 Sol (OpenAI)

91.9 pt

SWE: 81.2% · GPQA: 93.2% · $3.50/1M · Adopt Fast Tier

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