# Gemini 3.1 Pro vs Kimi K2.5

> Side-by-side benchmark comparison for Gemini 3.1 Pro and Kimi K2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-pro-vs-kimi-k2-5
- Last updated: October 17, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Gemini 3.1 Pro leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Gemini 3.1 Pro has the higher overall point estimate 64.7 to 53.05. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in mathematics, where the averages are 65 for Gemini 3.1 Pro and 83.3 for Kimi K2.5.
- The biggest single benchmark swing is Gert Labs in Agentic, with scores of 56.87% and 45.88%.
- Kimi K2.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.1 Pro also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.1 Pro | Kimi K2.5 |
|----------|----------|----------|
| Creator | Google | Moonshot AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 256K |
| Overall Score | 64.7 | 53.05 |
| Benchmarks Covered | 30 | 68 |
| Pricing (input/output) | $2.00 / $12.00 | $0.60 / $3.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Gemini 3.1 Pro public-lane score: 38.4 (Supported · #70/128)
- Kimi K2.5 public-lane score: 40.7 (Estimated · #66/128)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 57.8% | 52.3% | Gemini 3.1 Pro |
| DeepSearchQA | 69.7% | 77.1% | Kimi K2.5 |
| τ²-bench results | 95.6% | Coming soon | Coming soon |
| Gert Labs | 56.87% | 45.88% | Gemini 3.1 Pro |
| ResearchClawBench | 13.3% | 14.0% | Kimi K2.5 |
| Terminal-Bench 2.1 (Vals) | 70.8% | Coming soon | Coming soon |
| MazeBench | 1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 50.8% | Coming soon |
| BrowseComp | Coming soon | 60.6% | Coming soon |
| OSWorld-Verified | Coming soon | 63.3% | Coming soon |
| QwenClawBench | Coming soon | 54.3% | Coming soon |
| τ³-bench results | Coming soon | 65.7% | Coming soon |
| DeepPlanning | Coming soon | 14.4% | Coming soon |
| Toolathlon | Coming soon | 27.8% | Coming soon |
| MCP Atlas | Coming soon | 29.5% | Coming soon |
| MCP-Tasks | Coming soon | 59.1% | Coming soon |
| WideResearch | Coming soon | 72.7% | Coming soon |
| BFCL v4 | Coming soon | 68.3% | Coming soon |
| JobBench | Coming soon | 8.7% | Coming soon |

### Coding

- Winner: Directional only
- Gemini 3.1 Pro public-lane score: 39.2 (Supported · #67/150)
- Kimi K2.5 public-lane score: 38.5 (Estimated · #68/150)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 82.9% | Coming soon | Coming soon |
| React Native Evals | 78.9% | 77.2% | Gemini 3.1 Pro |
| Vibe Code Bench | 32.03% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 78.8% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 22.0% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 76.8% | Coming soon |
| SWE-bench Verified* | Coming soon | 70.8% | Coming soon |
| LiveCodeBench v6 | Coming soon | 85.0% | Coming soon |
| SWE-bench Pro | Coming soon | 50.7% | Coming soon |
| SWE Multilingual | Coming soon | 73% | Coming soon |
| SWE-Rebench | Coming soon | 58.5% | Coming soon |
| NL2Repo | Coming soon | 32% | Coming soon |
| SciCode | Coming soon | 48.7% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 50.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 58.2 (Unranked · 2 rankable rows)
- Kimi K2.5 public-lane score: 72.2 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 77.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 61% | Coming soon |

### Multimodal & Grounded

- Winner: Gemini 3.1 Pro
- Gemini 3.1 Pro public-lane score: 80.1 (#17/54)
- Kimi K2.5 public-lane score: 70.4 (#32/54)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83.9% | 78.5% | Gemini 3.1 Pro |
| CharXiv | 80.2% | 77.5% | Gemini 3.1 Pro |
| ERQA | 69.4% | Coming soon | Coming soon |
| SimpleVQA | 72.4% | 71.2% | Gemini 3.1 Pro |
| ScreenSpot Pro | 84.4% | Coming soon | Coming soon |
| ZeroBench | 29.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 81.3% | Coming soon | Coming soon |
| MMMU | Coming soon | 84.3% | Coming soon |
| RealWorldQA | Coming soon | 81.0% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 88.8% | Coming soon |
| Video-MME | Coming soon | 87.4% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 87.4% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 83.2% | Coming soon |
| MathVision | Coming soon | 84.2% | Coming soon |
| We-Math | Coming soon | 84.7% | Coming soon |
| DynaMath | Coming soon | 84.4% | Coming soon |
| MMLongBench-Doc | Coming soon | 58.5% | Coming soon |
| CC-OCR | Coming soon | 79.7% | Coming soon |
| AI2D_TEST | Coming soon | 90.8% | Coming soon |
| CountBench | Coming soon | 94.1% | Coming soon |
| RefCOCO (avg) | Coming soon | 87.8% | Coming soon |
| MMVU | Coming soon | 80.4% | Coming soon |
| VideoMMMU | Coming soon | 86.6% | Coming soon |
| MLVU (M-Avg) | Coming soon | 85.0% | Coming soon |

### Knowledge

- Winner: Directional only
- Gemini 3.1 Pro public-lane score: 67.6 (Supported · #26/184)
- Kimi K2.5 public-lane score: 51.4 (Estimated · #75/184)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 94.3% | 87.6% | Gemini 3.1 Pro |
| HLE w/o tools | 45.4% | Coming soon | Coming soon |
| HealthBench Hard | 20.6% | Coming soon | Coming soon |
| MedXpertQA (Text) | 71.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.5% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.0% | Coming soon | Coming soon |
| GPQA | Coming soon | 87.6% | Coming soon |
| SuperGPQA | Coming soon | 69.2% | Coming soon |
| MMLU-Pro | Coming soon | 87.1% | Coming soon |
| MMLU-Pro (Arcee) | Coming soon | 87.1% | Coming soon |
| MMLU-Redux | Coming soon | 94.5% | Coming soon |
| C-Eval | Coming soon | 94% | Coming soon |
| HLE | Coming soon | 30.1% | Coming soon |

### Multilingual

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: Coming soon
- Kimi K2.5 public-lane score: 87.3 (#8/17)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 82.3% | Coming soon |
| NOVA-63 | Coming soon | 56.0% | Coming soon |
| INCLUDE | Coming soon | 83.3% | Coming soon |
| PolyMath | Coming soon | 43.1% | Coming soon |
| MAXIFE | Coming soon | 72.8% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: Coming soon
- Kimi K2.5 public-lane score: 85.8 (#48/148)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 93.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 65 (Unranked · 2 rankable rows)
- Kimi K2.5 public-lane score: 83.3 (Unranked · 7 rankable rows)

| Benchmark | Gemini 3.1 Pro | Kimi K2.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 59.649% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 26.829% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 96.1% | Coming soon |
| AIME26 | Coming soon | 95.8% | Coming soon |
| AIME25 (Arcee) | Coming soon | 96.3% | Coming soon |
| HMMT Feb 2025 | Coming soon | 95.4% | Coming soon |
| HMMT Nov 2025 | Coming soon | 91.1% | Coming soon |
| HMMT Feb 2026 | Coming soon | 87.1% | Coming soon |
| MMAnswerBench | Coming soon | 81.8% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Pro or Kimi K2.5?

Gemini 3.1 Pro has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemini 3.1 Pro and Kimi K2.5?

The widest category gap is in mathematics, where the averages are 65 for Gemini 3.1 Pro and 83.3 for Kimi K2.5.

### How many benchmarks does Gemini 3.1 Pro cover on BenchLM?

Gemini 3.1 Pro currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K2.5 cover on BenchLM?

Kimi K2.5 currently has 68 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Pro vs Kimi K2.5 (Reasoning)](/compare/gemini-3-1-pro-vs-kimi-k2-5-reasoning)
- [Kimi K2.5 vs Kimi K2.5 (Reasoning)](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)
- [Gemini 3.1 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-1-pro)
- [Kimi K2.5 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-k2-5)

## Explore More

- [Gemini 3.1 Pro profile](/models/gemini-3-1-pro)
- [Kimi K2.5 profile](/models/kimi-k2-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)