# DeepSeek V4 Flash 0731 vs Kimi K2.6

> Side-by-side benchmark comparison for DeepSeek V4 Flash 0731 and Kimi K2.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-flash-0731-vs-kimi-2-6
- Last updated: September 27, 2026

- Shared sourced benchmarks: 17
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Kimi K2.6 if you want the stronger benchmark profile. DeepSeek V4 Flash 0731 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Kimi K2.6 leads overall 59.12 to 57.
- The clearest category separation is in mathematics, where the averages are 79.9 for DeepSeek V4 Flash 0731 and 71 for Kimi K2.6.
- The biggest single benchmark swing is Terminal-Bench 2.1 (Vals) in Agentic, with scores of 67.0% and 53.6%.
- DeepSeek V4 Flash 0731 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- DeepSeek V4 Flash 0731 also has the larger context window at 1M.

## Model Snapshot

| Property | DeepSeek V4 Flash 0731 | Kimi K2.6 |
|----------|----------|----------|
| Creator | DeepSeek | Moonshot AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | null | 59.12 |
| Benchmarks Covered | 42 | 37 |
| Pricing (input/output) | $0.14 / $0.28 | $0.95 / $4.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K2.6 public-lane score: 43.6 (Supported · #41/105)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 56.9% | 66.7% | Kimi K2.6 |
| BrowseComp | 73.2% | 83.2% | Kimi K2.6 |
| HLE w/ tools | 45.1% | Coming soon | Coming soon |
| MCP Atlas | 69% | 55.9% | DeepSeek V4 Flash 0731 |
| Toolathlon | 47.8% | 50% | Kimi K2.6 |
| Terminal-Bench 2.1 | 82.7% | Coming soon | Coming soon |
| CyberGym | 76.7% | Coming soon | Coming soon |
| Toolathlon-Verified | 70.3% | Coming soon | Coming soon |
| Agents' Last Exam | 25.2% | Coming soon | Coming soon |
| AutomationBench | 25.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.0% | 53.6% | DeepSeek V4 Flash 0731 |
| OSWorld-Verified | Coming soon | 73.1% | Coming soon |
| Claw-Eval | Coming soon | 62.3% | Coming soon |
| DeepSearchQA | Coming soon | 92.5% | Coming soon |
| WideResearch | Coming soon | 80.8% | Coming soon |
| Gert Labs | Coming soon | 56.82% | Coming soon |
| ResearchClawBench | Coming soon | 18.0% | Coming soon |
| OSWorld 2.0 | Coming soon | 4.6% | Coming soon |

### Coding

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K2.6 public-lane score: 47.4 (Supported · #42/135)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pass@1-COT | 91.6% | Coming soon | Coming soon |
| Codeforces | 3052.0 | Coming soon | Coming soon |
| SWE-bench Verified | 79% | 80.2% | Kimi K2.6 |
| SWE-bench Pro | 52.6% | 58.6% | Kimi K2.6 |
| SWE Multilingual | 73.3% | 76.7% | Kimi K2.6 |
| Terminal-Bench 2.0 | 56.9% | 66.7% | Kimi K2.6 |
| Terminal-Bench 2.1 | 82.7% | Coming soon | Coming soon |
| NL2Repo | 54.2% | Coming soon | Coming soon |
| DeepSWE | 54.4% | Coming soon | Coming soon |
| DSBench-FullStack | 68.7% | Coming soon | Coming soon |
| DSBench-Hard | 59.6% | Coming soon | Coming soon |
| VulcanBench v3 | 88.4% | Coming soon | Coming soon |
| OpenHarmony Bench | 53.8% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.3% | 86.8% | DeepSeek V4 Flash 0731 |
| SWE-bench (Vals) | 88.8% | 76.2% | DeepSeek V4 Flash 0731 |
| LiveCodeBench v6 | Coming soon | 89.6% | Coming soon |
| SciCode | Coming soon | 52.2% | Coming soon |
| Vibe Code Bench | Coming soon | 37.89% | Coming soon |
| cursorBench31 | Coming soon | 47.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: 57 (Unranked · 4 rankable rows)
- Kimi K2.6 public-lane score: Coming soon

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| MRCR 1M | 78.7% | Coming soon | Coming soon |
| CorpusQA 1M | 60.5% | Coming soon | Coming soon |
| ARC-AGI-1 | 89.00% | Coming soon | Coming soon |
| ARC-AGI-2 | 61.4% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K2.6 public-lane score: 63.9 (#27/50)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 79.4% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 80.1% | Coming soon |
| CharXiv | Coming soon | 80.4% | Coming soon |
| MathVision | Coming soon | 87.4% | Coming soon |
| V* | Coming soon | 96.9% | Coming soon |

### Knowledge

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K2.6 public-lane score: 59 (Supported · #35/158)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 86.2% | Coming soon | Coming soon |
| SimpleQA | 34.1% | Coming soon | Coming soon |
| Chinese-SimpleQA | 78.9% | Coming soon | Coming soon |
| GPQA | 88.1% | 90.5% | Kimi K2.6 |
| GPQA-D | 88.1% | 90.5% | Kimi K2.6 |
| HLE | 34.8% | 34.7% | DeepSeek V4 Flash 0731 |
| GPQA Diamond (Vals) | 89.9% | 89.1% | DeepSeek V4 Flash 0731 |
| MMLU-Pro (Vals) | 86.2% | 87.6% | Kimi K2.6 |

### Mathematics

- Winner: Not comparable
- DeepSeek V4 Flash 0731 public-lane score: 79.9 (Unranked · 4 rankable rows)
- Kimi K2.6 public-lane score: 71 (#1/7)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K2.6 | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | 94.8% | 92.7% | DeepSeek V4 Flash 0731 |
| IMOAnswerBench | 88.4% | Coming soon | Coming soon |
| Apex | 33.0% | Coming soon | Coming soon |
| Apex Shortlist | 85.7% | Coming soon | Coming soon |
| AIME26 | Coming soon | 96.4% | Coming soon |
| MMAnswerBench | Coming soon | 86.0% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 38.966% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.580% | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4 Flash 0731 or Kimi K2.6?

Kimi K2.6 is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V4 Flash 0731 and Kimi K2.6?

The widest category gap is in mathematics, where the averages are 79.9 for DeepSeek V4 Flash 0731 and 71 for Kimi K2.6.

### How many benchmarks does DeepSeek V4 Flash 0731 cover on BenchLM?

DeepSeek V4 Flash 0731 currently has 42 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K2.6 cover on BenchLM?

Kimi K2.6 currently has 37 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4 Flash 0731 vs GPT-6 Astra](/compare/deepseek-v4-flash-0731-vs-gpt-6-astra)
- [Kimi K2.6 vs GPT-6 Astra](/compare/gpt-6-astra-vs-kimi-2-6)
- [DeepSeek V4 Flash 0731 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v4-flash-0731)
- [Kimi K2.6 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-2-6)

## Explore More

- [DeepSeek V4 Flash 0731 profile](/models/deepseek-v4-flash-0731)
- [Kimi K2.6 profile](/models/kimi-2-6)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)