Claude Opus 4.5 vs Qwen3 6
Claude Opus 4.5 
Qwen3 6 Verdict
- Qwen3 6 (max) leads on quality: 63.3 vs 60.7.
- Claude Opus 4.5 (thinking) is stronger in agents & tools, composite, multimodal.
- Qwen3 6 (max) is stronger in coding, instruction following, knowledge, long context, maths, reasoning, human preference.
- Qwen3 6 (max) is 3.4× cheaper ($2.96 vs $10.00 per 1M blended).
- Qwen3 6 (max) streams 1.3× faster (59 vs 45 tokens per second).
| Metric | Claude Opus 4.5 (thinking) | Qwen3 6 (max) |
|---|---|---|
| BenchLeader Index | 60.7 | 63.3 |
| Agents & tools score | 74.6 | 72.0 |
| Coding score | 56.4 | 58.2 |
| Composite score | 65.8 | 64.9 |
| Instruction following score | 54.8 | 74.2 |
| Knowledge score | 61.0 | 64.0 |
| Long context score | 65.2 | 66.9 |
| Maths score | 64.0 | 64.2 |
| Multimodal score | 58.0 | – |
| Reasoning score | 58.6 | 63.2 |
| Human preference score | – | 65.9 |
| Blended price $/M | $10.00 | $2.96 |
| Output speed | 45 tok/s | 59 tok/s |
| Time to first answer | 17.3 s | 38.5 s |
| Context window | 200k | 246k |
| GPQA Diamond | – | 87.4% |
| OTIS Mock AIME | – | 91.1% |
| SWE-bench Verified (Epoch) | – | 76.7% |
| SimpleQA Verified | – | 52.0% |
| SimpleBench | – | 63.0% |
| Epoch Capabilities Index | – | 149.3 |
| LMArena Text | – | 1460 |
| LMArena Hard Prompts | – | 1482 |
| LMArena Coding | – | 1509 |
| LMArena WebDev | – | 1479 |
| AA Intelligence Index | 29.1 | 28.4 |
| IFBench | 58.0% | 76.6% |
| AA-LCR | 77.3% | 80.7% |
| MMMU-Pro | 74.0% | – |
| AA-Omniscience | 14 | 9.2 |
| Terminal-Bench Hard | 47.0% | 43.9% |
| GPQA Diamond (AA) | 86.6% | 88.8% |
| Humanity's Last Exam (AA) | 30.1% | 30.8% |
| τ²-Bench Telecom (AA) | 89.5% | 95.9% |
| AIME (Vals) | 95.4% | – |
| LiveCodeBench | 83.7% | – |
| MMLU-Pro | 87.3% | – |
| IOI | 20.3% | – |
| LegalBench | 84.6% | – |
| CorpFin | 65.1% | 66.5% |
| TaxEval | 74.9% | – |
| MedQA | 95.9% | – |
| MGSM | 95.2% | – |
| SWE-bench (Vals) | 76.4% | 72.8% |
| GPQA Diamond (Vals) | 85.9% | – |
| MultiChallenge | 59.0% | – |
| PRBench Finance | 46.2% | – |
| PRBench Legal | 44.2% | – |
| VISTA | 46.4% | – |
| MultiNRC | 48.6% | – |
| TutorBench | 51.2% | – |
| Kagi LLM Benchmark | 80.2% | – |
| ARC-AGI-1 | 80.0% | – |
| ARC-AGI-2 | 37.6% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
Claude Opus 4.5 vs Qwen3 6: questions
- Is Claude Opus 4.5 better than Qwen3 6?
- Qwen3 6 (max) leads on quality: 63.3 vs 60.7. The BenchLeader Index combines every independent quality benchmark; Qwen3 6 (max) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is Claude Opus 4.5 better than Qwen3 6 for coding?
- Qwen3 6 scores higher in coding (58 vs 56 on the category index, where 50 is average).
- Is Claude Opus 4.5 better than Qwen3 6 for agentic tasks?
- Claude Opus 4.5 scores higher in agentic tasks (75 vs 72 on the category index, where 50 is average).
- Which is cheaper, Claude Opus 4.5 or Qwen3 6?
- Qwen3 6 is cheaper: $2.96 against $10.00 per million tokens, blended at three input tokens per output token.
- Which is faster, Claude Opus 4.5 or Qwen3 6?
- Qwen3 6 streams faster: 59 against 45 output tokens per second.
- Which has the larger context window?
- Qwen3 6 accepts more context: 246k against 200k tokens.