# Claude Fable 5.2 vs Kimi K3

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

- Canonical page: https://benchlm.ai/compare/claude-fable-5-2-vs-kimi-k3
- 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 69.27. 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 66.7 for Kimi K3.
- The biggest single benchmark swing is FrontierSWE v2 in Coding, with scores of 69.9% and 25.9%.
- Kimi K3 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 | Claude Fable 5.2 | Kimi K3 |
|----------|----------|----------|
| Creator | Anthropic | Moonshot AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Overall Score | 91.19 | 69.27 |
| Benchmarks Covered | 30 | 58 |
| Pricing (input/output) | $8.00 / $40.00 | $3.00 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 90.7 (Estimated · #1/132)
- Kimi K3 public-lane score: 66.7 (Supported · #15/132)

| Benchmark | Claude Fable 5.2 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 67.60% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 74.6% | Coming soon | Coming soon |
| AutomationBench | 51.4% | 30.8% | Claude Fable 5.2 |
| 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 |
| Finch | Coming soon | 77.3% | Coming soon |
| b3 Agent Security | Coming soon | 88.0% | Coming soon |
| Cyber Misuse Refusal | Coming soon | 94.0% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.3% | Coming soon |
| BrowseComp | Coming soon | 91.2% | Coming soon |
| DeepSearchQA | Coming soon | 95.0% | Coming soon |
| Toolathlon-Verified | Coming soon | 73.2% | Coming soon |
| MCP Atlas | Coming soon | 84.2% | 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 |
| Terminal-Bench 2.1 (Vals) | Coming soon | 80.9% | Coming soon |
| ApprenticeBench | Coming soon | 18% | Coming soon |
| Hermes Index | Coming soon | 39.2% | Coming soon |
| Hermes Bench | Coming soon | 71.5% | Coming soon |
| MazeBench | Coming soon | 1% | Coming soon |

### Coding

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 86.9 (Estimated · #1/158)
- Kimi K3 public-lane score: 58.8 (Supported · #22/158)

| Benchmark | Claude Fable 5.2 | Kimi K3 | 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% | 67.5% | Claude Fable 5.2 |
| FrontierSWE v2 | 69.9% | 25.9% | Claude Fable 5.2 |
| ProgramBench | 85.6% | 77.8% | Claude Fable 5.2 |
| FrontierCode 2.0 | 49.1% | 17.7% | Claude Fable 5.2 |
| CursorBench 4.0 | 60.0% | Coming soon | Coming soon |
| ScarfBench | Coming soon | 61.3% | Coming soon |
| CursorBench 3.2 | Coming soon | 60.8% | Coming soon |
| FrontierSWE | Coming soon | 81.2% | 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 |
| VulcanBench v3 | Coming soon | 73.7% | Coming soon |
| OpenHarmony Bench | Coming soon | 57.3% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 93.4% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 32.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 21.0 fixes | Coming soon |

### Reasoning

- Winner: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 90.7 (Supported · #1/157)
- Kimi K3 public-lane score: 65.1 (Supported · #20/157)

| Benchmark | Claude Fable 5.2 | Kimi K3 | 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 |
| ARC-AGI-1 | Coming soon | 94.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 60.4% | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 89.8 (Estimated · #1/67)
- Kimi K3 public-lane score: 66.9 (Estimated · #19/67)

| Benchmark | Claude Fable 5.2 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 73.4% | Coming soon | Coming soon |
| Chartography (tools) | 91.6% | Coming soon | Coming soon |
| OfficeQA | 83.4% | Coming soon | Coming soon |
| OfficeQA Pro | 72.9% | 63.3% | Claude Fable 5.2 |
| BenchCAD 2.1 | 75.4% | Coming soon | Coming soon |
| BenchCAD 2.1 (tools) | 83.5% | Coming soon | Coming soon |
| ExtractBench (LlamaIndex) | Coming soon | 83.17% | 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 |

### Knowledge

- Winner: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 97.6 (Supported · #1/179)
- Kimi K3 public-lane score: 66.7 (Supported · #24/179)

| Benchmark | Claude Fable 5.2 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| HLE | 74.2% | 56% | Claude Fable 5.2 |
| HLE w/o tools | 73.2% | 43.5% | Claude Fable 5.2 |
| PhysicianBench | 64.4% | Coming soon | Coming soon |
| GPQA | Coming soon | 93.5% | Coming soon |
| GPQA-D | Coming soon | 93.5% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 88.0% | Coming soon |

### Multilingual

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

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

### Instruction Following

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

| Benchmark | Claude Fable 5.2 | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 52.7% | Coming soon |

## FAQ

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

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?

The widest category gap is in knowledge, where the averages are 97.6 for Claude Fable 5.2 and 66.7 for Kimi K3.

### 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 cover on BenchLM?

Kimi K3 currently has 58 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 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-kimi-k3)
- [Claude Fable 5.2 vs Claude Fable 5](/compare/claude-fable-vs-claude-fable-5-2)
- [Kimi K3 vs Claude Fable 5](/compare/claude-fable-vs-kimi-k3)

## Explore More

- [Claude Fable 5.2 profile](/models/claude-fable-5-2)
- [Kimi K3 profile](/models/kimi-k3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)