# Kimi K3 vs Qwen3.8-27B

> Side-by-side benchmark comparison for Kimi K3 and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k3-vs-qwen3-8-27b
- Last updated: October 2, 2026

- Shared sourced benchmarks: 18
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K3 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 has the higher overall point estimate 72.14 to 57.58. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 67.9 for Kimi K3 and 49.5 for Qwen3.8-27B.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 67.5% and 42.2%.
- Qwen3.8-27B 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 | Qwen3.8-27B |
|----------|----------|----------|
| Creator | Moonshot AI | Alibaba |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 262K |
| Overall Score | 72.14 | 57.58 |
| Benchmarks Covered | 48 | 33 |
| Pricing (input/output) | $3.00 / $15.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Kimi K3
- Kimi K3 public-lane score: 68.1 (Supported · #8/119)
- Qwen3.8-27B public-lane score: 61.3 (Supported · #18/119)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.3% | 73.0% | Kimi K3 |
| BrowseComp | 91.2% | Coming soon | Coming soon |
| DeepSearchQA | 95.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 73.2% | Coming soon | Coming soon |
| MCP Atlas | 84.2% | Coming soon | Coming soon |
| AutomationBench | 30.8% | Coming soon | Coming soon |
| JobBench | 52.9% | 33.4% | Kimi K3 |
| APEX-Agents | 37.6% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 34.8% | Coming soon | Coming soon |
| DECK-Bench | 73.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.9% | 58.4% | Kimi K3 |
| ApprenticeBench | 18% | Coming soon | Coming soon |
| CoWorkBench | Coming soon | 70.7% | Coming soon |
| Agents' Last Exam | Coming soon | 42.9% | Coming soon |
| OSWorld-Verified | Coming soon | 84.3% | Coming soon |
| WebArena-Verified | Coming soon | 64.8% | Coming soon |
| AndroidWorld | Coming soon | 81.9% | Coming soon |

### Coding

- Winner: Kimi K3
- Kimi K3 public-lane score: 61.4 (Supported · #18/144)
- Qwen3.8-27B public-lane score: 48.8 (Supported · #47/144)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 67.5% | 42.2% | Kimi K3 |
| CursorBench 3.2 | 60.8% | Coming soon | Coming soon |
| FrontierSWE | 81.2% | Coming soon | Coming soon |
| ProgramBench | 77.8% | Coming soon | Coming soon |
| 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% | 82.6% | Qwen3.8-27B |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 25.9% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.2% | 84.0% | Kimi K3 |
| SWE-bench (Vals) | 93.4% | 86.0% | Kimi K3 |
| PostTrainBench v1.1 | 32.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 73.0% | Coming soon |
| SWE-bench Pro | Coming soon | 61.7% | Coming soon |
| NL2Repo | Coming soon | 42.3% | Coming soon |
| LiveCodeBench v6 | Coming soon | 90.3% | Coming soon |

### Reasoning

- Winner: Directional only
- Kimi K3 public-lane score: 65.8 (#18/27)
- Qwen3.8-27B public-lane score: 78.7 (#9/27)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 94.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 60.4% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Kimi K3 public-lane score: 89.4 (#1/49)
- Qwen3.8-27B public-lane score: 80.9 (#11/49)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| 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% | 83.7% | Kimi K3 |
| CharXiv | 91.3% | 90.2% | Kimi K3 |
| MathVision | 94.3% | 90.0% | Kimi K3 |
| MathVision w/ Python | 97.8% | 94.6% | Kimi K3 |
| BabyVision w/ Python | 85.7% | 85.6% | Kimi K3 |
| 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 |
| BabyVision | Coming soon | 65.7% | Coming soon |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 91.1% | Coming soon |
| RealWorldQA | Coming soon | 85.9% | Coming soon |
| ERQA | Coming soon | 65.5% | Coming soon |

### Knowledge

- Winner: Kimi K3
- Kimi K3 public-lane score: 67.9 (Supported · #18/171)
- Qwen3.8-27B public-lane score: 49.5 (Supported · #67/171)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.5% | 89.2% | Kimi K3 |
| GPQA-D | 93.5% | 89.2% | Kimi K3 |
| HLE | 56% | 30.8% | Kimi K3 |
| HLE w/o tools | 43.5% | 30.8% | Kimi K3 |
| GPQA Diamond (Vals) | 92.9% | 88.9% | Kimi K3 |
| MMLU-Pro (Vals) | 88.0% | 84.3% | Kimi K3 |

### Instruction Following

- Winner: Not comparable
- Kimi K3 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 82.5 (#49/125)

| Benchmark | Kimi K3 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 52.7% | Coming soon | Coming soon |
| IFBench | Coming soon | 79.5% | Coming soon |

## FAQ

### Which is better overall, Kimi K3 or Qwen3.8-27B?

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

### Where is the biggest gap between Kimi K3 and Qwen3.8-27B?

The widest category gap is in knowledge, where the averages are 67.9 for Kimi K3 and 49.5 for Qwen3.8-27B.

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

Kimi K3 currently has 48 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.8-27B cover on BenchLM?

Qwen3.8-27B currently has 33 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Kimi K3 vs GPT-6 Astra](/compare/gpt-6-astra-vs-kimi-k3)
- [Qwen3.8-27B vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-8-27b)
- [Kimi K3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-k3)
- [Qwen3.8-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-8-27b)

## Explore More

- [Kimi K3 profile](/models/kimi-k3)
- [Qwen3.8-27B profile](/models/qwen3-8-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)