# Gemma 4 31B vs Kimi K3.1 Pro

> Side-by-side benchmark comparison for Gemma 4 31B and Kimi K3.1 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemma-4-31b-vs-kimi-3-1-pro
- Last updated: October 23, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K3.1 Pro leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Kimi K3.1 Pro has the higher overall point estimate 82 to 39.76. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in multimodal & grounded, where the averages are 74.7 for Gemma 4 31B and 98 for Kimi K3.1 Pro.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 26.5% and 70%.
- Gemma 4 31B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Kimi K3.1 Pro also has the larger context window at 1.05M.

## Model Snapshot

| Property | Gemma 4 31B | Kimi K3.1 Pro |
|----------|----------|----------|
| Creator | Google | Moonshot AI |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1.05M |
| Overall Score | 39.76 | null |
| Benchmarks Covered | 11 | 42 |
| Pricing (input/output) | $0.00 / $0.00 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemma 4 31B public-lane score: 20 (Estimated · #112/132)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 31B | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 35.26% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 65.70% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 38.1% | Coming soon |
| HLE w/ tools | Coming soon | 70.0% | Coming soon |
| BrowseComp | Coming soon | 92.1% | Coming soon |
| BioMysteryBench | Coming soon | 80.6% | Coming soon |
| Agents' Last Exam | Coming soon | 43.2% | Coming soon |
| Agents' Last Exam (CLI) | Coming soon | 44.2% | Coming soon |
| APEX-Agents | Coming soon | 67.2% | Coming soon |
| Frontier Finance | Coming soon | 58.6% | Coming soon |
| HANDBOOK.md | Coming soon | 44.6% | Coming soon |
| OSWorld 2.0 | Coming soon | 79.6% | Coming soon |
| Business Operation | Coming soon | 37.8% | Coming soon |
| Financial Modeling | Coming soon | 57.6% | Coming soon |
| Financial Research | Coming soon | 70.4% | Coming soon |
| Kimi Hallu Bench Hard (tools) | Coming soon | 8.3% | Coming soon |
| ExploitGym | Coming soon | 20.7% | Coming soon |

### Coding

- Winner: Not comparable
- Gemma 4 31B public-lane score: 31.7 (Supported · #91/153)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 31B | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 80.0% | Coming soon | Coming soon |
| SWE-Rebench | 41.6% | Coming soon | Coming soon |
| React Native Evals | 75.2% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 75.5% | Coming soon |
| ProgramBench (binary) | Coming soon | 31.5% | Coming soon |
| Kimi Code Bench v2 | Coming soon | 77.1% | Coming soon |
| Kimi Code Bench 3.0 Long-horizon | Coming soon | 61.2% | Coming soon |
| sweMarathon | Coming soon | 51.7% | Coming soon |
| PostTrainBench v1.2 | Coming soon | 36.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemma 4 31B public-lane score: 65.8 (Unranked · 3 rankable rows)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 31B | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 66.4% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Gemma 4 31B public-lane score: 74.7 (#25/56)
- Kimi K3.1 Pro public-lane score: 98 (#1/56)

| Benchmark | Gemma 4 31B | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| ParseBench | 62.40% | Coming soon | Coming soon |
| MMMU-Pro | 76.9% | 84.1% | Kimi K3.1 Pro |
| OfficeQA Pro | Coming soon | 67.4% | Coming soon |
| OfficeQA Pro v2 | Coming soon | 64.4% | Coming soon |
| BenchCAD Vision2Code (no tools) | Coming soon | 0.728 | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.927 | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 90% | Coming soon |
| CharXiv | Coming soon | 93.4% | Coming soon |
| CharXiv w/o tools | Coming soon | 89% | Coming soon |
| Chartography (tools) | Coming soon | 90.2% | Coming soon |
| BabyVision w/ Python | Coming soon | 95.4% | Coming soon |
| ZeroBench | Coming soon | 39.0% | Coming soon |
| ZeroBench w/ Python | Coming soon | 63.0% | Coming soon |
| GDP.pdf (Gemini judge) | Coming soon | 34.6% | Coming soon |
| GDP.pdf w/ Python (Gemini judge) | Coming soon | 85.7% | Coming soon |
| PerceptionBench | Coming soon | 68.3% | Coming soon |

### Knowledge

- Winner: Not comparable
- Gemma 4 31B public-lane score: 40.3 (Supported · #117/187)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 31B | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 84.3% | 94.2% | Kimi K3.1 Pro |
| MMLU-Pro | 85.2% | Coming soon | Coming soon |
| HLE | 26.5% | 70% | Kimi K3.1 Pro |
| HLE w/o tools | 19.5% | 51.1% | Kimi K3.1 Pro |
| GPQA-D | Coming soon | 94.2% | Coming soon |
| Kimi Hallu Bench | Coming soon | 5.4% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemma 4 31B public-lane score: 92.9 (#16/153)
- Kimi K3.1 Pro public-lane score: Coming soon

## FAQ

### Which is better overall, Gemma 4 31B or Kimi K3.1 Pro?

Kimi K3.1 Pro has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemma 4 31B and Kimi K3.1 Pro?

The widest category gap is in multimodal & grounded, where the averages are 74.7 for Gemma 4 31B and 98 for Kimi K3.1 Pro.

### How many benchmarks does Gemma 4 31B cover on BenchLM?

Gemma 4 31B currently has 11 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K3.1 Pro cover on BenchLM?

Kimi K3.1 Pro currently has 42 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemma 4 31B vs Gemma 4 26B A4B](/compare/gemma-4-26b-a4b-vs-gemma-4-31b)
- [Kimi K3.1 Pro vs Gemma 4 26B A4B](/compare/gemma-4-26b-a4b-vs-kimi-3-1-pro)
- [Gemma 4 31B vs Gemma 4 12B](/compare/gemma-4-12b-vs-gemma-4-31b)
- [Kimi K3.1 Pro vs Gemma 4 12B](/compare/gemma-4-12b-vs-kimi-3-1-pro)

## Explore More

- [Gemma 4 31B profile](/models/gemma-4-31b)
- [Kimi K3.1 Pro profile](/models/kimi-3-1-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)