# Gemini 3.1 Pro vs Kimi K3

> Side-by-side benchmark comparison for Gemini 3.1 Pro and Kimi K3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-pro-vs-kimi-k3
- Last updated: October 2, 2026

- Shared sourced benchmarks: 13
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K3 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Kimi K3 has the higher overall point estimate 72.14 to 65.09. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 39.3 for Gemini 3.1 Pro and 68.1 for Kimi K3.
- The biggest single benchmark swing is DeepSearchQA in Agentic, with scores of 69.7% and 95.0%.
- Gemini 3.1 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Kimi K3 also has the larger context window at 1.05M.

## Model Snapshot

| Property | Gemini 3.1 Pro | Kimi K3 |
|----------|----------|----------|
| Creator | Google | Moonshot AI |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | 65.09 | 72.14 |
| Benchmarks Covered | 29 | 48 |
| Pricing (input/output) | $2.00 / $12.00 | $3.00 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Kimi K3
- Gemini 3.1 Pro public-lane score: 39.3 (Supported · #59/119)
- Kimi K3 public-lane score: 68.1 (Supported · #8/119)

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 57.8% | Coming soon | Coming soon |
| DeepSearchQA | 69.7% | 95.0% | Kimi K3 |
| τ²-bench results | 95.6% | Coming soon | Coming soon |
| Gert Labs | 56.87% | Coming soon | Coming soon |
| ResearchClawBench | 13.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 70.8% | 80.9% | Kimi K3 |
| Terminal-Bench 2.1 | Coming soon | 88.3% | Coming soon |
| BrowseComp | Coming soon | 91.2% | Coming soon |
| Toolathlon-Verified | Coming soon | 73.2% | Coming soon |
| MCP Atlas | Coming soon | 84.2% | Coming soon |
| AutomationBench | Coming soon | 30.8% | Coming soon |
| JobBench | Coming soon | 52.9% | Coming soon |
| APEX-Agents | Coming soon | 37.6% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.8% | Coming soon |
| DECK-Bench | Coming soon | 73.5% | Coming soon |
| ApprenticeBench | Coming soon | 18% | Coming soon |

### Coding

- Winner: Kimi K3
- Gemini 3.1 Pro public-lane score: 42.3 (Supported · #61/144)
- Kimi K3 public-lane score: 61.4 (Supported · #18/144)

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 82.9% | Coming soon | Coming soon |
| React Native Evals | 78.9% | Coming soon | Coming soon |
| Vibe Code Bench | 32.03% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.5% | 87.2% | Gemini 3.1 Pro |
| SWE-bench (Vals) | 78.8% | 93.4% | Kimi K3 |
| PostTrainBench v1.1 | 22.0% | 32.0% | Kimi K3 |
| DeepSWE | Coming soon | 67.5% | Coming soon |
| CursorBench 3.2 | Coming soon | 60.8% | Coming soon |
| FrontierSWE | Coming soon | 81.2% | Coming soon |
| ProgramBench | Coming soon | 77.8% | Coming soon |
| Kimi Code Bench v2 | Coming soon | 72.9% | Coming soon |
| sweMarathon | Coming soon | 42% | Coming soon |
| PostTrain Bench | Coming soon | 36.6% | Coming soon |
| MLS-Bench Lite | Coming soon | 48.3% | Coming soon |
| VulcanBench v3 | Coming soon | 73.7% | Coming soon |
| OpenHarmony Bench | Coming soon | 57.3% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 54.4 (Unranked · 2 rankable rows)
- Kimi K3 public-lane score: 65.8 (#18/27)

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 77.1% | 60.4% | Gemini 3.1 Pro |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 94.50% | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Gemini 3.1 Pro public-lane score: 80.1 (#13/49)
- Kimi K3 public-lane score: 89.4 (#1/49)

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83.9% | 81.6% | Gemini 3.1 Pro |
| CharXiv | 80.2% | 91.3% | Kimi K3 |
| ERQA | 69.4% | Coming soon | Coming soon |
| SimpleVQA | 72.4% | Coming soon | Coming soon |
| ScreenSpot Pro | 84.4% | Coming soon | Coming soon |
| ZeroBench | 29.0% | 23.0% | Gemini 3.1 Pro |
| MedXpertQA (MM) | 81.3% | Coming soon | Coming soon |
| OfficeQA Pro | Coming soon | 63.3% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 83.4% | Coming soon |
| CharXiv w/o tools | Coming soon | 84.8% | Coming soon |
| MathVision | Coming soon | 94.3% | Coming soon |
| MathVision w/ Python | Coming soon | 97.8% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.7% | Coming soon |
| ZeroBench w/ Python | Coming soon | 41.0% | Coming soon |
| WorldVQA ForceAnswer | Coming soon | 51.0% | Coming soon |
| OmniDocBench | Coming soon | 91.1% | Coming soon |
| PerceptionBench | Coming soon | 58.5% | Coming soon |

### Knowledge

- Winner: Kimi K3
- Gemini 3.1 Pro public-lane score: 66.2 (Supported · #22/171)
- Kimi K3 public-lane score: 67.9 (Supported · #18/171)

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 94.3% | 93.5% | Gemini 3.1 Pro |
| HLE w/o tools | 45.4% | 43.5% | Gemini 3.1 Pro |
| HealthBench Hard | 20.6% | Coming soon | Coming soon |
| MedXpertQA (Text) | 71.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.5% | 92.9% | Gemini 3.1 Pro |
| MMLU-Pro (Vals) | 91.0% | 88.0% | Gemini 3.1 Pro |
| GPQA | Coming soon | 93.5% | Coming soon |
| HLE | Coming soon | 56% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: Coming soon
- Kimi K3 public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 52.7% | Coming soon |

### Mathematics

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 54.2 (Unranked · 2 rankable rows)
- Kimi K3 public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 36.900% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 16.700% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Pro or Kimi K3?

Kimi K3 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 K3?

The widest category gap is in agentic, where the averages are 39.3 for Gemini 3.1 Pro and 68.1 for Kimi K3.

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

Gemini 3.1 Pro currently has 29 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K3 cover on BenchLM?

Kimi K3 currently has 48 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Pro vs GPT-6 Astra](/compare/gemini-3-1-pro-vs-gpt-6-astra)
- [Kimi K3 vs GPT-6 Astra](/compare/gpt-6-astra-vs-kimi-k3)
- [Gemini 3.1 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-1-pro)
- [Kimi K3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-k3)

## Explore More

- [Gemini 3.1 Pro profile](/models/gemini-3-1-pro)
- [Kimi K3 profile](/models/kimi-k3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)