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Gemini 2.5 Flash vs Gemini 3.1 Pro
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| Attribute | Gemini 2.5 Flash | Gemini 3.1 Pro |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 143 | 155 |
| Coding | 19 | 62 |
| Math | 16 | 72 |
| Reasoning & Knowledge | 18 | 94 |
| Agentic & Tools | 3 | 81 |
| Specifications | ||
| Developer | Google DeepMind | Google DeepMind |
| Family | Gemini | Gemini |
| Released | Sep 25, 2025 | Feb 19, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 1M | — |
| Price — $/M input | $0.30 | — |
| Price — $/M output | $2.50 | — |
| Inputs | file, image, text, audio, video | — |
| Outputs | text | — |
| Benchmarks | ||
| AIME 2024/2025 | 73% | 96% |
| APEX | 2% | 34% |
| ARC-AGI | 33% | 98% |
| ARC-AGI-2 | 3% | 77% |
| FrontierMath | 5% | 37% |
| FrontierMath Tier 4 | 4% | 17% |
| GPQA Diamond | 79% | 94% |
| Humanity's Last Exam | 12% | 46% |
| LiveCodeBench | 70% | — |
| MMLU-Pro | 83% | — |
| SciCode | 39% | — |
| SimpleBench | 41% | 80% |
| Terminal-Bench | 17% | 80% |
| WeirdML | 42% | 72% |
| τ²-bench | 32% | — |
| GSO (code optimization) | — | 23% |
| METR task horizon | — | 6.4 h |
| SimpleQA Verified | — | 77% |
| SWE-bench Verified | — | 76% |
| WebDev Arena | — | 1461 |
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.