# Kimi K3 vs LongCat-2.5

> Side-by-side benchmark comparison for Kimi K3 and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k3-vs-longcat-2-5
- Last updated: November 9, 2026

- Shared sourced benchmarks: 10
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Kimi K3 if you want the stronger benchmark profile. LongCat-2.5 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 69.27 to 0.
- The biggest single benchmark swing is ProgramBench in Coding, with scores of 77.8% and 25.5%.
- LongCat-2.5 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 | Kimi K3 | LongCat-2.5 |
|----------|----------|----------|
| Creator | Moonshot AI | Meituan |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 1.05M | 1M |
| Overall Score | 69.27 | null |
| Benchmarks Covered | 58 | 22 |
| Pricing (input/output) | $3.00 / $15.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Kimi K3 public-lane score: 66.7 (Supported · #15/132)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Finch | 77.3% | Coming soon | Coming soon |
| b3 Agent Security | 88.0% | Coming soon | Coming soon |
| Cyber Misuse Refusal | 94.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 88.3% | 88.4% | LongCat-2.5 |
| BrowseComp | 91.2% | 91.9% | LongCat-2.5 |
| DeepSearchQA | 95.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 73.2% | Coming soon | Coming soon |
| MCP Atlas | 84.2% | 83.1% | Kimi K3 |
| AutomationBench | 30.8% | 51.8% | LongCat-2.5 |
| JobBench | 52.9% | 65.4% | LongCat-2.5 |
| APEX-Agents | 37.6% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 34.8% | 34.9% | LongCat-2.5 |
| DECK-Bench | 73.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.9% | Coming soon | Coming soon |
| ApprenticeBench | 18% | Coming soon | Coming soon |
| Hermes Index | 39.2% | Coming soon | Coming soon |
| Hermes Bench | 71.5% | Coming soon | Coming soon |
| MazeBench | 1% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 38.50% | Coming soon |
| HLE w/ tools | Coming soon | 63.1% | Coming soon |
| Agents' Last Exam | Coming soon | 38.5% | Coming soon |
| skillsBench | Coming soon | 63.3% | Coming soon |
| Claw-Eval | Coming soon | 78.3% | Coming soon |

### Coding

- Winner: Not comparable
- Kimi K3 public-lane score: 58.8 (Supported · #22/158)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ScarfBench | 61.3% | Coming soon | Coming soon |
| DeepSWE | 67.5% | 64.6% | Kimi K3 |
| CursorBench 3.2 | 60.8% | Coming soon | Coming soon |
| FrontierSWE | 81.2% | Coming soon | Coming soon |
| ProgramBench | 77.8% | 25.5% | Kimi K3 |
| Kimi Code Bench v2 | 72.9% | Coming soon | Coming soon |
| sweMarathon | 42% | Coming soon | Coming soon |
| PostTrain Bench | 36.6% | Coming soon | Coming soon |
| MLS-Bench Lite | 48.3% | Coming soon | Coming soon |
| VulcanBench v3 | 73.7% | Coming soon | Coming soon |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 25.9% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 93.4% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 32.0% | Coming soon | Coming soon |
| Bug Hunt Bench | 21.0 fixes | Coming soon | Coming soon |
| FrontierCode 2.0 | 17.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| PaperBench | Coming soon | 82.1% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 58.3% | Coming soon |
| NL2Repo | Coming soon | 60.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Kimi K3 public-lane score: 65.1 (Supported · #20/157)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 94.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 60.4% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K3 public-lane score: 66.9 (Estimated · #19/67)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | 83.17% | Coming soon | Coming soon |
| OfficeQA Pro | 63.3% | Coming soon | Coming soon |
| MMMU-Pro | 81.6% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 83.4% | Coming soon | Coming soon |
| CharXiv w/o tools | 84.8% | Coming soon | Coming soon |
| CharXiv | 91.3% | 90.2% | Kimi K3 |
| MathVision | 94.3% | Coming soon | Coming soon |
| MathVision w/ Python | 97.8% | 96.5% | Kimi K3 |
| BabyVision w/ Python | 85.7% | Coming soon | Coming soon |
| ZeroBench | 23.0% | Coming soon | Coming soon |
| ZeroBench w/ Python | 41.0% | Coming soon | Coming soon |
| WorldVQA ForceAnswer | 51.0% | Coming soon | Coming soon |
| OmniDocBench | 91.1% | Coming soon | Coming soon |
| PerceptionBench | 58.5% | Coming soon | Coming soon |
| Vision2Web | Coming soon | 78.6% | Coming soon |
| Video-MME | Coming soon | 85.2% | Coming soon |

### Knowledge

- Winner: Not comparable
- Kimi K3 public-lane score: 66.7 (Supported · #24/179)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.5% | Coming soon | Coming soon |
| GPQA-D | 93.5% | Coming soon | Coming soon |
| HLE | 56% | Coming soon | Coming soon |
| HLE w/o tools | 43.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 92.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.0% | Coming soon | Coming soon |
| FrontierScience | Coming soon | 77% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Kimi K3 public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Kimi K3 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 52.7% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Kimi K3 or LongCat-2.5?

Kimi K3 is ahead overall on BenchLM right now.

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

Kimi K3 currently has 58 sourced benchmark scores on BenchLM.

### How many benchmarks does LongCat-2.5 cover on BenchLM?

LongCat-2.5 currently has 22 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Kimi K3 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-kimi-k3)
- [LongCat-2.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-longcat-2-5)
- [Kimi K3 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-kimi-k3)
- [LongCat-2.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-longcat-2-5)

## Explore More

- [Kimi K3 profile](/models/kimi-k3)
- [LongCat-2.5 profile](/models/longcat-2-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)