Claude Fable 5.1 vs Qwen3 6
Claude Fable 5.1 
Qwen3 6 Verdict
- Claude Fable 5.1 (max) leads on quality: 70.3 vs 63.3.
- Claude Fable 5.1 (max) is stronger in coding, composite, human preference, knowledge, maths, reasoning.
- Qwen3 6 (max) is stronger in agents & tools, instruction following, long context.
- Qwen3 6 (max) is 6.7× cheaper ($2.96 vs $20.00 per 1M blended).
- Qwen3 6 (max) streams 1.5× faster (59 vs 40 tokens per second).
| Metric | Claude Fable 5.1 (max) | Qwen3 6 (max) |
|---|---|---|
| BenchLeader Index | 70.3 | 63.3 |
| Agents & tools score | 67.4 | 72.0 |
| Coding score | 78.4 | 58.2 |
| Composite score | 76.6 | 64.9 |
| Human preference score | 71.3 | 65.9 |
| Knowledge score | 75.9 | 64.0 |
| Maths score | 77.0 | 64.2 |
| Reasoning score | 71.9 | 63.2 |
| Instruction following score | – | 74.2 |
| Long context score | – | 66.9 |
| Blended price $/M | $20.00 | $2.96 |
| Output speed | 40 tok/s | 59 tok/s |
| Time to first answer | 299.8 s | 38.5 s |
| Context window | 1M | 246k |
| GPQA Diamond | – | 87.4% |
| FrontierMath Tiers 1–3 | 90.2% | – |
| FrontierMath Tier 4 | 87.8% | – |
| OTIS Mock AIME | 100.0% | 91.1% |
| SWE-bench Verified (Epoch) | – | 76.7% |
| SimpleQA Verified | 70.8% | 52.0% |
| Terminal-Bench | 57.9% | – |
| SimpleBench | – | 63.0% |
| SciCode | 62.0% | – |
| WeirdML | 92.9% | – |
| ProofBench | 100.0% | – |
| Epoch Capabilities Index | – | 149.3 |
| LMArena Text | 1504 | 1460 |
| LMArena Hard Prompts | 1522 | 1482 |
| LMArena Coding | 1517 | 1509 |
| LMArena WebDev | 1764 | 1479 |
| LMArena Agent | 14.5 | – |
| LiveBench | 83.4% | – |
| LiveBench Reasoning | 91.7% | – |
| LiveBench Coding | 86.4% | – |
| LiveBench Agentic Coding | 66.1% | – |
| LiveBench Mathematics | 97.0% | – |
| LiveBench Data Analysis | 80.3% | – |
| LiveBench Language | 89.5% | – |
| AA Intelligence Index | – | 28.4 |
| IFBench | – | 76.6% |
| AA-LCR | – | 80.7% |
| AA-Omniscience | – | 9.2 |
| Terminal-Bench Hard | – | 43.9% |
| GPQA Diamond (AA) | – | 88.8% |
| Humanity's Last Exam (AA) | – | 30.8% |
| τ²-Bench Telecom (AA) | – | 95.9% |
| CorpFin | – | 66.5% |
| SWE-bench (Vals) | – | 72.8% |
| ARC-AGI-1 | 97.5% | – |
| ARC-AGI-2 | 90.0% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Claude Fable 5.1 vs Qwen3 6: questions
- Is Claude Fable 5.1 better than Qwen3 6?
- Claude Fable 5.1 (max) leads on quality: 70.3 vs 63.3. The BenchLeader Index combines every independent quality benchmark; Claude Fable 5.1 (max) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Claude Fable 5.1 better than Qwen3 6 for coding?
- Claude Fable 5.1 scores higher in coding (78 vs 58 on the category index, where 50 is average).
- Is Claude Fable 5.1 better than Qwen3 6 for agentic tasks?
- Qwen3 6 scores higher in agentic tasks (72 vs 67 on the category index, where 50 is average).
- Which is cheaper, Claude Fable 5.1 or Qwen3 6?
- Qwen3 6 is cheaper: $2.96 against $20.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Fable 5.1 or Qwen3 6?
- Qwen3 6 streams faster: 59 against 40 output tokens per second.
- Which has the larger context window?
- Claude Fable 5.1 accepts more context: 1M against 246k tokens.