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HEAD-TO-HEAD FRONTIER BENCHMARK DUEL · UPDATED NOVEMBER 4, 2026
Claude Opus 5.5 vs. Gemini 4 Argon (High)
Quick Verdict: Route autonomous coding to Claude Opus 5.5 (84.2% SWE-bench Verified), hard scientific reasoning to Gemini 4 Argon (High) (94.8% GPQA Diamond), and high-volume cost-sensitive workloads to Gemini 4 Argon (High).
Claude Opus 5.5 (Anthropic)
94.6 pt
SWE: 84.2% · GPQA: 94.1% · $6.00/1M · Adopt NowGemini 4 Argon (High) (Google DeepMind)
94.4 pt
SWE: 82.6% · GPQA: 94.8% · $2/$10/1M · Adopt (Carbon 7-17d)