Side-by-side comparison of AI model specs, benchmarks, and pricing.
| Spec | GPT-5.1 OpenAI | Gemini 3 Pro Google |
|---|---|---|
| Tier | frontier | frontier |
| Release Date | 2025-11-13 | 2025-11-18 |
| Context Window | 400K | 1049K |
| Max Output | 128K | 66K |
| Input Price (/1M) | $1.25 | $2 |
| Output Price (/1M) | $10 | $12 |
| Arena Elo | 1,458 | 1,486 |
| MMLU | 91.5% | 93.1% |
| GPQA | 88.1% | 91.9% |
| MATH | — | 95% |
| HumanEval | 96% | 95% |
| SWE-bench | 62% | 70.8% |
| Capabilities | vision, tool-use, code, reasoning, agentic | vision, tool-use, code, reasoning, audio |