# Claude Fable 5.2 vs Qwen3.8-27B

> Side-by-side benchmark comparison for Claude Fable 5.2 and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-5-2-vs-qwen3-8-27b
- Last updated: November 9, 2026

- Shared sourced benchmarks: 4
- 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 54.38. 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 49 for Qwen3.8-27B.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 74.2% and 30.8%.
- Qwen3.8-27B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Fable 5.2 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Fable 5.2 | Qwen3.8-27B |
|----------|----------|----------|
| Creator | Anthropic | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 91.19 | 54.38 |
| Benchmarks Covered | 30 | 37 |
| Pricing (input/output) | $8.00 / $40.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 90.7 (Estimated · #1/132)
- Qwen3.8-27B public-lane score: 63 (Supported · #20/132)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | 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% | 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 |
| Terminal-Bench 2.1 | Coming soon | 73.0% | Coming soon |
| CoWorkBench | Coming soon | 70.7% | Coming soon |
| JobBench | Coming soon | 33.4% | 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 |
| Terminal-Bench 2.1 (Vals) | Coming soon | 58.4% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: Directional only
- Claude Fable 5.2 public-lane score: 86.9 (Estimated · #1/158)
- Qwen3.8-27B public-lane score: 46.9 (Supported · #57/158)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 93% | 61.7% | Claude Fable 5.2 |
| SWE Multilingual | 96.6% | Coming soon | Coming soon |
| SWE Multimodal | 74.1% | Coming soon | Coming soon |
| DeepSWE | 74.3% | 42.2% | Claude Fable 5.2 |
| FrontierSWE v2 | 69.9% | Coming soon | Coming soon |
| ProgramBench | 85.6% | Coming soon | Coming soon |
| FrontierCode 2.0 | 49.1% | Coming soon | Coming soon |
| CursorBench 4.0 | 60.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 73.0% | Coming soon |
| NL2Repo | Coming soon | 42.3% | Coming soon |
| LiveCodeBench v6 | Coming soon | 90.3% | Coming soon |
| VulcanBench v3 | Coming soon | 82.6% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 84.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 86.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 15.0 fixes | Coming soon |

### Reasoning

- Winner: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 90.7 (Supported · #1/157)
- Qwen3.8-27B public-lane score: 42.9 (Supported · #73/157)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | 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)
- Qwen3.8-27B public-lane score: 60.1 (Supported · #37/67)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | 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% | Coming soon | Coming soon |
| BenchCAD 2.1 | 75.4% | Coming soon | Coming soon |
| BenchCAD 2.1 (tools) | 83.5% | Coming soon | Coming soon |
| ExtractBench (LlamaIndex) | Coming soon | 89.75% | Coming soon |
| ParseBench | Coming soon | 69.03% | Coming soon |
| MathVision | Coming soon | 90.0% | Coming soon |
| MathVision w/ Python | Coming soon | 94.6% | Coming soon |
| BabyVision | Coming soon | 65.7% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.6% | Coming soon |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| CharXiv w/o tools | Coming soon | 83.7% | Coming soon |
| CharXiv | Coming soon | 90.2% | 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: Claude Fable 5.2
- Claude Fable 5.2 public-lane score: 97.6 (Supported · #1/179)
- Qwen3.8-27B public-lane score: 49 (Supported · #84/179)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| HLE | 74.2% | 30.8% | Claude Fable 5.2 |
| HLE w/o tools | 73.2% | 30.8% | Claude Fable 5.2 |
| PhysicianBench | 64.4% | Coming soon | Coming soon |
| GPQA | Coming soon | 89.2% | Coming soon |
| GPQA-D | Coming soon | 89.2% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 88.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.3% | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Fable 5.2 public-lane score: Coming soon
- Qwen3.8-27B public-lane score: Coming soon

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | 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
- Qwen3.8-27B public-lane score: 86.9 (#44/157)

| Benchmark | Claude Fable 5.2 | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.5% | Coming soon |

## FAQ

### Which is better overall, Claude Fable 5.2 or Qwen3.8-27B?

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 Qwen3.8-27B?

The widest category gap is in knowledge, where the averages are 97.6 for Claude Fable 5.2 and 49 for Qwen3.8-27B.

### 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 Qwen3.8-27B cover on BenchLM?

Qwen3.8-27B currently has 37 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)
- [Qwen3.8-27B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-qwen3-8-27b)
- [Claude Fable 5.2 vs Claude Fable 5](/compare/claude-fable-vs-claude-fable-5-2)
- [Qwen3.8-27B vs Claude Fable 5](/compare/claude-fable-vs-qwen3-8-27b)

## Explore More

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