# Claude Fable 5.2 vs Kimi K3.1 Pro

> Side-by-side benchmark comparison for Claude Fable 5.2 and Kimi K3.1 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-5-2-vs-kimi-3-1-pro
- Last updated: November 9, 2026

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

## Quick Verdict

Claude Fable 5.2 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Claude Fable 5.2 has the higher overall point estimate 91.19 to 74.61. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 97.6 for Claude Fable 5.2 and 74.5 for Kimi K3.1 Pro.
- The biggest single benchmark swing is Terminal-Bench-Science 0.1 in Agentic, with scores of 74.6% and 38.1%.
- Kimi K3.1 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Kimi K3.1 Pro also has the larger context window at 1.05M.

## Model Snapshot

| Property | Claude Fable 5.2 | Kimi K3.1 Pro |
|----------|----------|----------|
| Creator | Anthropic | Moonshot AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | 91.19 | 74.61 |
| Benchmarks Covered | 30 | 47 |
| Pricing (input/output) | $8.00 / $40.00 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 90.7 (Estimated · #1/132)
- Kimi K3.1 Pro public-lane score: 72.7 (Supported · #10/132)

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 67.60% | 65.70% | Claude Fable 5.2 |
| Terminal-Bench-Science 0.1 | 74.6% | 38.1% | Claude Fable 5.2 |
| AutomationBench | 51.4% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 89.3% | Coming soon | Coming soon |
| WANDR | 82.1% | Coming soon | Coming soon |
| Remote Labor Index | 41.3% | Coming soon | Coming soon |
| RoboDojo Sim | 64.9% | Coming soon | Coming soon |
| DRACO | 87.7% | Coming soon | 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 | 69.4% | 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 |
| ExploitGym | Coming soon | 20.7% | Coming soon |
| MazeBench | Coming soon | 2% | Coming soon |
| OSWorld 2.1 | Coming soon | 79.6% | Coming soon |
| CWE-bench | Coming soon | 45.3% | Coming soon |

### Coding

- Winner: Not comparable
- Claude Fable 5.2 public-lane score: 86.9 (Estimated · #1/158)
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 93% | Coming soon | Coming soon |
| SWE Multilingual | 96.6% | Coming soon | Coming soon |
| SWE Multimodal | 74.1% | Coming soon | Coming soon |
| DeepSWE | 74.3% | 75.5% | Kimi K3.1 Pro |
| FrontierSWE v2 | 69.9% | Coming soon | Coming soon |
| ProgramBench | 85.6% | Coming soon | Coming soon |
| FrontierCode 2.0 | 49.1% | 19.6% | Claude Fable 5.2 |
| CursorBench 4.0 | 60.0% | Coming soon | 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: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 90.7 (Supported · #1/157)
- Kimi K3.1 Pro public-lane score: 70.6 (Supported · #16/157)

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-3 | 65.7% | Coming soon | Coming soon |
| ARC-AGI-3 Provider Adapter | 94.90% | Coming soon | Coming soon |
| STEM Professor Bench | 61.8% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 89.8 (Estimated · #1/67)
- Kimi K3.1 Pro public-lane score: 73.9 (Estimated · #12/67)

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 73.4% | Coming soon | Coming soon |
| Chartography (tools) | 91.6% | 90.2% | Claude Fable 5.2 |
| OfficeQA | 83.4% | Coming soon | Coming soon |
| OfficeQA Pro | 72.9% | 67.4% | Claude Fable 5.2 |
| BenchCAD 2.1 | 75.4% | Coming soon | Coming soon |
| BenchCAD 2.1 (tools) | 83.5% | Coming soon | 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 |
| 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: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 97.6 (Supported · #1/179)
- Kimi K3.1 Pro public-lane score: 74.5 (Supported · #13/179)

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| HLE | 74.2% | 70% | Claude Fable 5.2 |
| HLE w/o tools | 73.2% | 51.1% | Claude Fable 5.2 |
| PhysicianBench | 64.4% | Coming soon | Coming soon |
| GPQA | Coming soon | 94.2% | Coming soon |
| GPQA-D | Coming soon | 94.2% | Coming soon |
| Kimi Hallu Bench | Coming soon | 5.4% | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Fable 5.2 public-lane score: Coming soon
- Kimi K3.1 Pro public-lane score: Coming soon

| Benchmark | Claude Fable 5.2 | Kimi K3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GMMLU | 96.0% | Coming soon | Coming soon |
| MILU | 94.1% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Fable 5.2 or Kimi K3.1 Pro?

Claude Fable 5.2 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Claude Fable 5.2 and Kimi K3.1 Pro?

The widest category gap is in knowledge, where the averages are 97.6 for Claude Fable 5.2 and 74.5 for Kimi K3.1 Pro.

### How many benchmarks does Claude Fable 5.2 cover on BenchLM?

Claude Fable 5.2 currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K3.1 Pro cover on BenchLM?

Kimi K3.1 Pro currently has 47 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Fable 5.2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-fable-5-2)
- [Kimi K3.1 Pro vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-kimi-3-1-pro)
- [Claude Fable 5.2 vs Claude Fable 5](/compare/claude-fable-vs-claude-fable-5-2)
- [Kimi K3.1 Pro vs Claude Fable 5](/compare/claude-fable-vs-kimi-3-1-pro)

## Explore More

- [Claude Fable 5.2 profile](/models/claude-fable-5-2)
- [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)