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Claude Opus 4.6 vs Gemini 3.1 Pro
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| Attribute | Claude Opus 4.6 | Gemini 3.1 Pro |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 155 | 155 |
| Coding | 87 | 62 |
| Math | 77 | 72 |
| Reasoning & Knowledge | 74 | 94 |
| Agentic & Tools | 77 | 81 |
| Specifications | ||
| Developer | Anthropic | Google DeepMind |
| Family | Claude | Gemini |
| Released | Feb 5, 2026 | Feb 19, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 1M | — |
| Price — $/M input | $5.00 | — |
| Price — $/M output | $25.00 | — |
| Inputs | text, image, file | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 94% | 96% |
| APEX | 32% | 34% |
| ARC-AGI | 94% | 98% |
| ARC-AGI-2 | 69% | 77% |
| FrontierMath | 41% | 37% |
| FrontierMath Tier 4 | 23% | 17% |
| GPQA Diamond | 91% | 94% |
| GSO (code optimization) | 41% | 23% |
| Humanity's Last Exam | 34% | 46% |
| METR task horizon | 12.0 h | 6.4 h |
| SciCode | 52% | — |
| SimpleBench | 68% | 80% |
| SimpleQA Verified | 46% | 77% |
| SWE-bench Verified | 79% | 76% |
| Terminal-Bench | 80% | 80% |
| WebDev Arena | 1556 | 1461 |
| WeirdML | 78% | 72% |
| τ²-bench | 92% | — |
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.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.