Gemini 3.1 Pro vs GPT-5.5
Gemini 3.1 Pro (Google DeepMind) and GPT-5.5 (OpenAI) compared on benchmarks, pricing, context window, and use-case rankings.
- GPT-5.5 leads on overall intelligence (ECI 159 vs 156).
- GPT-5.5 ranks higher for coding (89th vs 71th percentile).
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Is Gemini 3.1 Pro better than GPT-5.5?
On Epoch AI's Capabilities Index, GPT-5.5 scores higher (159) than Gemini 3.1 Pro (156). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is better for coding, Gemini 3.1 Pro or GPT-5.5?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, GPT-5.5 ranks higher — 89th vs 71th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.