Gemini 3.1 Pro vs Kimi K2.6
Gemini 3.1 Pro 
Kimi K2.6 Verdict
- Gemini 3.1 Pro leads on quality: 64.0 vs 60.7.
- Gemini 3.1 Pro is stronger in agents & tools, knowledge, long context, maths, multimodal, reasoning.
- Kimi K2.6 is stronger in coding, composite, human preference, instruction following.
- Kimi K2.6 is 2.6× cheaper ($1.71 vs $4.50 per 1M blended).
- Gemini 3.1 Pro streams 2.4× faster (108 vs 44 tokens per second).
| Metric | Gemini 3.1 Pro | Kimi K2.6 |
|---|---|---|
| BenchLeader Index | 64.0 | 60.7 |
| Agents & tools score | 63.7 | 45.1 |
| Coding score | 59.9 | 60.4 |
| Composite score | 67.4 | 68.6 |
| Human preference score | 59.9 | 60.8 |
| Instruction following score | 69.6 | 73.7 |
| Knowledge score | 66.2 | 58.6 |
| Long context score | 67.6 | 67.1 |
| Maths score | 60.7 | 53.8 |
| Multimodal score | 66.2 | 63.7 |
| Reasoning score | 69.8 | 66.0 |
| Blended price $/M | $4.50 | $1.71 |
| Output speed | 108 tok/s | 44 tok/s |
| Time to first answer | 30.5 s | 103.2 s |
| Context window | 1.0M | 262k |
| GPQA Diamond | 94.1% | 90.8% |
| FrontierMath Tiers 1–3 | 59.6% | 57.2% |
| FrontierMath Tier 4 | 26.8% | 25.6% |
| OTIS Mock AIME | 95.6% | 96.1% |
| SWE-bench Verified (Epoch) | – | 76.7% |
| SimpleQA Verified | – | 34.9% |
| Humanity's Last Exam | 46.4% | – |
| Terminal-Bench | 80.2% | – |
| SimpleBench | 79.6% | – |
| OSWorld-Verified 2.0 | – | 4.6% |
| SciCode | 58.9% | 53.5% |
| WeirdML | 72.1% | 55.9% |
| APEX-Agents | 33.5% | 18.9% |
| ProofBench | 26.0% | 16.0% |
| GSO-Bench | 22.6% | – |
| Epoch Capabilities Index | 155 | 151.0 |
| LMArena Text | 1487 | 1461 |
| LMArena Hard Prompts | 1507 | 1485 |
| LMArena Coding | 1521 | 1514 |
| LMArena WebDev | 1447 | 1509 |
| LMArena Vision | 1295 | 1281 |
| LMArena Agent | -5.3 | – |
| AA Intelligence Index | 30.4 | 31.3 |
| IFBench | 77.1% | 76.0% |
| AA-LCR | 82.0% | 81.0% |
| MMMU-Pro | 82.4% | 79.4% |
| AA-Omniscience | 31.9 | 5.3 |
| Terminal-Bench Hard | 53.8% | 43.9% |
| GPQA Diamond (AA) | 94.1% | 91.1% |
| Humanity's Last Exam (AA) | 47.0% | 37.5% |
| SciCode (AA) | 58.7% | 51.5% |
| τ²-Bench Telecom (AA) | 95.6% | 95.9% |
| LiveCodeBench | – | 86.8% |
| MMLU-Pro | – | 87.6% |
| LegalBench | – | 84.7% |
| CorpFin | – | 66.7% |
| TaxEval | – | 74.7% |
| Terminal-Bench 2.1 (Vals) | – | 53.6% |
| SWE-bench (Vals) | – | 76.2% |
| GPQA Diamond (Vals) | – | 89.1% |
| Vals Index | – | 43.5 |
| AIME 2026 | 98.3% | – |
| HMMT February 2026 | 94.7% | – |
| MathArena Apex | 60.9% | – |
| MultiChallenge | 71.4% | – |
| PRBench Finance | 41.9% | – |
| PRBench Legal | 44.0% | – |
| MultiNRC | 64.7% | – |
| HiL-Bench | 35.3% | 18.7% |
| TutorBench | 53.0% | – |
| EQ-Bench 4 | 1142 | 1202 |
| ARC-AGI-1 | 98.0% | – |
| ARC-AGI-2 | 77.1% | – |
| ARC-AGI-3 | 0.4% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Gemini 3.1 Pro vs Kimi K2.6: questions
- Is Gemini 3.1 Pro better than Kimi K2.6?
- Gemini 3.1 Pro leads on quality: 64.0 vs 60.7. The BenchLeader Index combines every independent quality benchmark; Gemini 3.1 Pro is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Gemini 3.1 Pro better than Kimi K2.6 for coding?
- Kimi K2.6 scores higher in coding (60 vs 60 on the category index, where 50 is average).
- Is Gemini 3.1 Pro better than Kimi K2.6 for agentic tasks?
- Gemini 3.1 Pro scores higher in agentic tasks (64 vs 45 on the category index, where 50 is average).
- Which is cheaper, Gemini 3.1 Pro or Kimi K2.6?
- Kimi K2.6 is cheaper: $1.71 against $4.50 per million tokens, blended at three input tokens per output token.
- Which is faster, Gemini 3.1 Pro or Kimi K2.6?
- Gemini 3.1 Pro streams faster: 108 against 44 output tokens per second.
- Which has the larger context window?
- Gemini 3.1 Pro accepts more context: 1.0M against 262k tokens.