Gemini 3.1 Pro vs Kimi K2
Gemini 3.1 Pro (Google DeepMind) and Kimi K2 (Moonshot) compared on benchmarks, pricing, context window, and use-case rankings.
- Gemini 3.1 Pro leads on overall intelligence (ECI 155 vs 140).
- Gemini 3.1 Pro ranks higher for coding (65th vs 9th percentile).
| Attribute | Gemini 3.1 Pro | Kimi K2 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 155 | 140 |
| Coding | 65 | 9 |
| Math | 74 | 5 |
| Reasoning & Knowledge | 94 | 15 |
| Agentic & Tools | 83 | 21 |
| Specifications | ||
| Developer | Google DeepMind | Moonshot |
| Family | Gemini | Kimi |
| Released | Feb 19, 2026 | Sep 5, 2025 |
| Parameters | — | 1T |
| Availability | API access | Open weights (restricted use) |
| Context window | — | 131K |
| Price — $/M input | — | $0.57 |
| Price — $/M output | — | $2.30 |
| Inputs | — | text |
| Outputs | — | text |
| Benchmarks | ||
| AIME 2024/2025 | 96% | 57% |
| APEX | 34% | — |
| ARC-AGI | 98% | — |
| ARC-AGI-2 | 77% | — |
| FrontierMath | 37% | — |
| FrontierMath Tier 4 | 17% | — |
| GPQA Diamond | 94% | 77% |
| GSO (code optimization) | 23% | 5% |
| Humanity's Last Exam | 46% | 7% |
| METR task horizon | 6.4 h | — |
| SimpleBench | 80% | 26% |
| SimpleQA Verified | 77% | — |
| SWE-bench Verified | 76% | — |
| Terminal-Bench | 80% | 28% |
| WebDev Arena | 1461 | — |
| WeirdML | 72% | 39% |
| LiveCodeBench | — | 56% |
| MMLU-Pro | — | 82% |
| SciCode | — | 35% |
| τ²-bench | — | 61% |
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 Kimi K2?
On Epoch AI's Capabilities Index, Gemini 3.1 Pro scores higher (155) than Kimi K2 (140). 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 Kimi K2?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Gemini 3.1 Pro ranks higher — 65th vs 9th percentile among the models tracked on Model Beat.
Want a different match-up? Open the compare tool to add or swap models.
More comparisons
Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.