GPT-5.5 Instant vs Qwen3 6
GPT-5.5 Instant 
Qwen3 6 Verdict
- Qwen3 6 (max) leads on quality: 63.3 vs 60.5.
- GPT-5.5 Instant is stronger in coding, human preference, knowledge, multimodal.
- Qwen3 6 (max) is stronger in agents & tools, composite, instruction following, long context, maths, reasoning.
- Qwen3 6 (max) is 3.8× cheaper ($2.96 vs $11.25 per 1M blended).
- GPT-5.5 Instant streams 2.2× faster (129 vs 59 tokens per second).
| Metric | GPT-5.5 Instant | Qwen3 6 (max) |
|---|---|---|
| BenchLeader Index | 60.5 | 63.3 |
| Agents & tools score | 70.7 | 72.0 |
| Coding score | 61.1 | 58.2 |
| Composite score | 62.9 | 64.9 |
| Human preference score | 67.5 | 65.9 |
| Instruction following score | 69.8 | 74.2 |
| Knowledge score | 69.4 | 64.0 |
| Long context score | 61.4 | 66.9 |
| Maths score | 42.5 | 64.2 |
| Multimodal score | 59.7 | – |
| Reasoning score | 62.6 | 63.2 |
| Blended price $/M | $11.25 | $2.96 |
| Output speed | 129 tok/s | 59 tok/s |
| Time to first answer | 16.8 s | 38.5 s |
| Context window | 400k | 246k |
| GPQA Diamond | 82.5% | 87.4% |
| FrontierMath Tiers 1–3 | 26.3% | – |
| FrontierMath Tier 4 | 2.4% | – |
| OTIS Mock AIME | 68.1% | 91.1% |
| SWE-bench Verified (Epoch) | – | 76.7% |
| SimpleQA Verified | – | 52.0% |
| SimpleBench | – | 63.0% |
| SciCode | 48.6% | – |
| Epoch Capabilities Index | 142.5 | 149.3 |
| LMArena Text | 1474 | 1460 |
| LMArena Hard Prompts | 1491 | 1482 |
| LMArena Coding | 1514 | 1509 |
| LMArena WebDev | – | 1479 |
| LMArena Vision | 1251 | – |
| AA Intelligence Index | 26.8 | 28.4 |
| IFBench | 71.5% | 76.6% |
| AA-LCR | 70.0% | 80.7% |
| AA-Omniscience | 11.2 | 9.2 |
| Terminal-Bench Hard | 42.4% | 43.9% |
| GPQA Diamond (AA) | 84.7% | 88.8% |
| Humanity's Last Exam (AA) | 21.6% | 30.8% |
| SciCode (AA) | 52.5% | – |
| τ²-Bench Telecom (AA) | 49.4% | 95.9% |
| CorpFin | – | 66.5% |
| SWE-bench (Vals) | – | 72.8% |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GPT-5.5 Instant vs Qwen3 6: questions
- Is GPT-5.5 Instant better than Qwen3 6?
- Qwen3 6 (max) leads on quality: 63.3 vs 60.5. 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 GPT-5.5 Instant better than Qwen3 6 for coding?
- GPT-5.5 Instant scores higher in coding (61 vs 58 on the category index, where 50 is average).
- Is GPT-5.5 Instant better than Qwen3 6 for agentic tasks?
- Qwen3 6 scores higher in agentic tasks (72 vs 71 on the category index, where 50 is average).
- Which is cheaper, GPT-5.5 Instant or Qwen3 6?
- Qwen3 6 is cheaper: $2.96 against $11.25 per million tokens, blended at three input tokens per output token.
- Which is faster, GPT-5.5 Instant or Qwen3 6?
- GPT-5.5 Instant streams faster: 129 against 59 output tokens per second.
- Which has the larger context window?
- GPT-5.5 Instant accepts more context: 400k against 246k tokens.