GPT-5.4 vs Claude Opus 4.6 vs Gemini 3.1 Pro: Developer Benchmark 2026
GPT-5.4 scores 80% on SWE-Bench at $2.50/1M input. Claude Opus 4.6 hits 81.4% SWE-Bench at $5/1M. Gemini 3.1 Pro leads reasoning at $2/1M. Full breakdown for developers.
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