# Gemini 4 Carbon vs Kimi K3.1 Pro

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

- Canonical page: https://benchlm.ai/compare/gemini-4-carbon-vs-kimi-3-1-pro
- Last updated: October 28, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 4 Carbon and Kimi K3.1 Pro share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Kimi K3.1 Pro has the larger published context window at 1.05M.

## Model Snapshot

| Property | Gemini 4 Carbon | Kimi K3.1 Pro |
|----------|----------|----------|
| Creator | Google | Moonshot AI |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | null | 1.05M |
| Independent public score (not head-to-head) | 88.42 | null |
| Benchmarks Covered | 9 | 45 |
| Pricing (input/output) | $2.00 / $10.00 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.9% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 81.5% | Coming soon | Coming soon |
| CWE-bench v1 | 71.0% | Coming soon | Coming soon |
| ExploitGym | 53.5% | 20.7% | Gemini 4 Carbon |
| 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 |
| MazeBench | Coming soon | 2% | Coming soon |
| OSWorld 2.1 | Coming soon | 79.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 82.2 (Supported · #3/156)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| FrontierSWE v2 | 61.2% | 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 |
| Bug Hunt Bench | Coming soon | 36.0 fixes | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 79.5 (Unranked · 2 rankable rows)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GraphWalks BFS 256K–1M | 96.2% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Kimi K3.1 Pro public-lane score: 98 (#1/58)

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 72.5% | Coming soon | Coming soon |
| Blueprint-Bench 2 | 58.6% | Coming soon | Coming soon |
| 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 | Coming soon | 84.1% | 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: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 88.2 (Supported · #2/178)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 94.2% | Coming soon |
| GPQA-D | Coming soon | 94.2% | Coming soon |
| HLE | Coming soon | 70% | Coming soon |
| HLE w/o tools | Coming soon | 51.1% | Coming soon |
| Kimi Hallu Bench | Coming soon | 5.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 0.0% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 4 Carbon and Kimi K3.1 Pro?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Gemini 4 Carbon vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-carbon)
- [Kimi K3.1 Pro vs Gemini 4 Argon](/compare/gemini-4-argon-vs-kimi-3-1-pro)
- [Gemini 4 Carbon vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-4-carbon)
- [Kimi K3.1 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-3-1-pro)

## Explore More

- [Gemini 4 Carbon profile](/models/gemini-4-carbon)
- [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)