Claude Fable 5 vs Qwen3 8
Claude Fable 5 
Qwen3 8 Verdict
- Claude Fable 5 leads on quality: 70.4 vs 63.9.
- Claude Fable 5 is stronger in agents & tools, composite, human preference, instruction following, knowledge, long context, multimodal, reasoning.
- Qwen3 8 (max) is stronger in coding.
- Qwen3 8 (max) is 7.5× cheaper ($2.67 vs $20.00 per 1M blended).
- Claude Fable 5 streams 1.6× faster (63 vs 39 tokens per second).
| Metric | Claude Fable 5 | Qwen3 8 (max) |
|---|---|---|
| BenchLeader Index | 70.4 | 63.9 |
| Agents & tools score | 74.4 | 56.1 |
| Coding score | 70.6 | 71.7 |
| Composite score | 91.6 | 70.8 |
| Human preference score | 71.3 | 67.9 |
| Instruction following score | 62.6 | – |
| Knowledge score | 71.3 | 62.3 |
| Long context score | 67.8 | 65.7 |
| Multimodal score | 69.6 | 67.2 |
| Reasoning score | 75.6 | 67.7 |
| Blended price $/M | $20.00 | $2.67 |
| Output speed | 63 tok/s | 39 tok/s |
| Time to first answer | 92.2 s | 53.2 s |
| Context window | 1M | 1M |
| Remote Labor Index | 16.1% | – |
| APEX-Agents | 45.0% | – |
| FrontierCode | 53.5% | – |
| Epoch Capabilities Index | 163.4 | 156.6 |
| LMArena Text | 1507 | 1480 |
| LMArena Hard Prompts | 1533 | 1502 |
| LMArena Coding | 1551 | 1520 |
| LMArena WebDev | 1628 | 1685 |
| LMArena Vision | 1330 | 1313 |
| LMArena Agent | – | 3.9 |
| LiveBench | – | 78.5% |
| LiveBench Reasoning | – | 88.2% |
| LiveBench Coding | – | 72.9% |
| LiveBench Agentic Coding | – | 64.7% |
| LiveBench Mathematics | – | 91.3% |
| LiveBench Data Analysis | – | 78.4% |
| LiveBench Language | – | 79.7% |
| AA Intelligence Index | 49.7 | 40.3 |
| IFBench | 63.5% | – |
| AA-LCR | 82.3% | 78.3% |
| MMMU-Pro | – | 82.3% |
| AA-Omniscience | 43.3 | 3.4 |
| Terminal-Bench Hard | 62.9% | – |
| GPQA Diamond (AA) | 92.6% | 92.7% |
| Humanity's Last Exam (AA) | 55.5% | 43.0% |
| SciCode (AA) | 61.0% | 53.2% |
| τ²-Bench Telecom (AA) | 98.5% | – |
| LiveCodeBench | 89.8% | 87.8% |
| MMLU-Pro | 91.5% | 88.6% |
| IOI | 72.3% | 73.0% |
| LegalBench | 88.6% | 83.6% |
| CorpFin | 71.8% | 65.8% |
| TaxEval | 76.9% | 75.5% |
| Terminal-Bench 2.1 (Vals) | 80.5% | 67.4% |
| SWE-bench (Vals) | 95.0% | 85.6% |
| GPQA Diamond (Vals) | 93.2% | 93.7% |
| Vals Index | 66.0 | 51.8 |
| MCP Atlas | 83.3% | – |
| PRBench Finance | 53.9% | – |
| PRBench Legal | 52.6% | – |
| HiL-Bench | 56.3% | – |
| EQ-Bench 4 | 1340 | – |
| Kagi LLM Benchmark | 88.8% | – |
Data as of 2026-09-09. Best configuration of each model; every score links to its source on the model pages.