# DeepSeek V4 Flash 0731 vs Kimi K3

> Side-by-side benchmark comparison for DeepSeek V4 Flash 0731 and Kimi K3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-flash-0731-vs-kimi-k3
- Last updated: September 10, 2026

- Shared sourced benchmarks: 16
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Kimi K3 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 K3 leads overall 74.82 to 55.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 56.9% and 88.3%.
- DeepSeek V4 Flash 0731 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 | DeepSeek V4 Flash 0731 | Kimi K3 |
|----------|----------|----------|
| Creator | DeepSeek | Moonshot AI |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | null | 74.82 |
| Benchmarks Covered | 40 | 44 |
| Pricing (input/output) | $0.14 / $0.28 | $3.00 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K3 public-lane score: 71.9 (Supported · #4/152)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 56.9% | 88.3% | Kimi K3 |
| BrowseComp | 73.2% | 91.2% | Kimi K3 |
| HLE w/ tools | 45.1% | Coming soon | Coming soon |
| MCP Atlas | 69% | 84.2% | Kimi K3 |
| Toolathlon | 47.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 82.7% | Coming soon | Coming soon |
| CyberGym | 76.7% | Coming soon | Coming soon |
| Toolathlon-Verified | 70.3% | 73.2% | Kimi K3 |
| Agents' Last Exam | 25.2% | Coming soon | Coming soon |
| AutomationBench | 25.1% | 30.8% | Kimi K3 |
| Terminal-Bench 2.1 (Vals) | 67.0% | 80.9% | Kimi K3 |
| DeepSearchQA | Coming soon | 95.0% | 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: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K3 public-lane score: 68 (Supported · #6/151)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pass@1-COT | 91.6% | Coming soon | Coming soon |
| Codeforces | 3052.0 | Coming soon | Coming soon |
| SWE-bench Verified | 79% | Coming soon | Coming soon |
| SWE-bench Pro | 52.6% | Coming soon | Coming soon |
| SWE Multilingual | 73.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 56.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 82.7% | Coming soon | Coming soon |
| NL2Repo | 54.2% | Coming soon | Coming soon |
| DeepSWE | 54.4% | 67.5% | Kimi K3 |
| DSBench-FullStack | 68.7% | Coming soon | Coming soon |
| DSBench-Hard | 59.6% | Coming soon | Coming soon |
| VulcanBench v3 | 88.4% | 73.7% | DeepSeek V4 Flash 0731 |
| OpenHarmony Bench | 53.8% | 57.3% | Kimi K3 |
| LiveCodeBench (Vals) | 87.3% | 87.2% | DeepSeek V4 Flash 0731 |
| SWE-bench (Vals) | 88.8% | 93.4% | Kimi K3 |
| cursorBench32 | 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 |
| FrontierSWE v2 | Coming soon | 25.9% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K3 public-lane score: 89.5 (#1/48)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 63.3% | Coming soon |
| MMMU-Pro | Coming soon | 81.6% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 83.4% | Coming soon |
| CharXiv w/o tools | Coming soon | 84.8% | Coming soon |
| CharXiv | Coming soon | 91.3% | 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 | Coming soon | 23.0% | 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 |

### Reasoning

- Winner: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K3 public-lane score: 78.5 (#3/20)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| MRCR 1M | 78.7% | Coming soon | Coming soon |
| CorpusQA 1M | 60.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: Coming soon
- Kimi K3 public-lane score: 72 (Supported · #8/183)

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | 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% | 93.5% | Kimi K3 |
| GPQA-D | 88.1% | 93.5% | Kimi K3 |
| HLE | 34.8% | 56% | Kimi K3 |
| GPQA Diamond (Vals) | 89.9% | 92.9% | Kimi K3 |
| MMLU-Pro (Vals) | 86.2% | 88.0% | Kimi K3 |
| HLE w/o tools | Coming soon | 43.5% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4 Flash 0731 public-lane score: 80 (Unranked · 4 rankable rows)
- Kimi K3 public-lane score: Coming soon

| Benchmark | DeepSeek V4 Flash 0731 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | 94.8% | Coming soon | Coming soon |
| IMOAnswerBench | 88.4% | Coming soon | Coming soon |
| Apex | 33.0% | Coming soon | Coming soon |
| Apex Shortlist | 85.7% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4 Flash 0731 or Kimi K3?

Kimi K3 is ahead overall on BenchLM right now.

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

DeepSeek V4 Flash 0731 currently has 40 sourced benchmark scores on BenchLM.

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

Kimi K3 currently has 44 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4 Flash 0731 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-deepseek-v4-flash-0731)
- [Kimi K3 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-kimi-k3)
- [DeepSeek V4 Flash 0731 vs GPT-6 Astra](/compare/deepseek-v4-flash-0731-vs-gpt-6-astra)
- [Kimi K3 vs GPT-6 Astra](/compare/gpt-6-astra-vs-kimi-k3)

## Explore More

- [DeepSeek V4 Flash 0731 profile](/models/deepseek-v4-flash-0731)
- [Kimi K3 profile](/models/kimi-k3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)