GPT-5.6 Terra vs Qwen3 6
GPT-5.6 Terra 
Qwen3 6 Verdict
- GPT-5.6 Terra (xhigh) leads on quality: 64.4 vs 63.3.
- GPT-5.6 Terra (xhigh) is stronger in coding, composite, human preference, maths, multimodal.
- Qwen3 6 (max) is stronger in agents & tools, instruction following, knowledge, long context, reasoning.
- Qwen3 6 (max) is 1.5× cheaper ($2.96 vs $4.50 per 1M blended).
- GPT-5.6 Terra (xhigh) streams 1.3× faster (79 vs 59 tokens per second).
| Metric | GPT-5.6 Terra (xhigh) | Qwen3 6 (max) |
|---|---|---|
| BenchLeader Index | 64.4 | 63.3 |
| Agents & tools score | 69.8 | 72.0 |
| Coding score | 63.7 | 58.2 |
| Composite score | 77.3 | 64.9 |
| Human preference score | 66.7 | 65.9 |
| Instruction following score | 65.3 | 74.2 |
| Knowledge score | 61.0 | 64.0 |
| Long context score | 66.0 | 66.9 |
| Maths score | 71.0 | 64.2 |
| Multimodal score | 63.0 | – |
| Reasoning score | 58.6 | 63.2 |
| Blended price $/M | $4.50 | $2.96 |
| Output speed | 79 tok/s | 59 tok/s |
| Time to first answer | 33.6 s | 38.5 s |
| Context window | 1M | 246k |
| GPQA Diamond | – | 87.4% |
| OTIS Mock AIME | – | 91.1% |
| SWE-bench Verified (Epoch) | – | 76.7% |
| SimpleQA Verified | – | 52.0% |
| SimpleBench | 48.9% | 63.0% |
| SciCode | 51.6% | – |
| ProofBench | 74.0% | – |
| Epoch Capabilities Index | – | 149.3 |
| LMArena Text | 1466 | 1460 |
| LMArena Hard Prompts | 1491 | 1482 |
| LMArena Coding | 1519 | 1509 |
| LMArena WebDev | 1521 | 1479 |
| LMArena Vision | 1269 | – |
| LMArena Agent | 1.5 | – |
| AA Intelligence Index | 38.2 | 28.4 |
| IFBench | 66.3% | 76.6% |
| AA-LCR | 79.0% | 80.7% |
| MMMU-Pro | 79.5% | – |
| AA-Omniscience | -3.0 | 9.2 |
| Terminal-Bench Hard | 62.9% | 43.9% |
| GPQA Diamond (AA) | 90.8% | 88.8% |
| Humanity's Last Exam (AA) | 41.9% | 30.8% |
| SciCode (AA) | 52.3% | – |
| τ²-Bench Telecom (AA) | 80.4% | 95.9% |
| LiveCodeBench | 85.9% | – |
| MMLU-Pro | 86.7% | – |
| IOI | 65.3% | – |
| CorpFin | 65.3% | 66.5% |
| TaxEval | 76.2% | – |
| SWE-bench (Vals) | – | 72.8% |
| GPQA Diamond (Vals) | 90.9% | – |
| ARC-AGI-1 | 94.0% | – |
| ARC-AGI-2 | 74.2% | – |
| ARC-AGI-3 | 0.7% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GPT-5.6 Terra vs Qwen3 6: questions
- Is GPT-5.6 Terra better than Qwen3 6?
- GPT-5.6 Terra (xhigh) leads on quality: 64.4 vs 63.3. The BenchLeader Index combines every independent quality benchmark; GPT-5.6 Terra (xhigh) is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is GPT-5.6 Terra better than Qwen3 6 for coding?
- GPT-5.6 Terra scores higher in coding (64 vs 58 on the category index, where 50 is average).
- Is GPT-5.6 Terra better than Qwen3 6 for agentic tasks?
- Qwen3 6 scores higher in agentic tasks (72 vs 70 on the category index, where 50 is average).
- Which is cheaper, GPT-5.6 Terra or Qwen3 6?
- Qwen3 6 is cheaper: $2.96 against $4.50 per million tokens, blended at three input tokens per output token.
- Which is faster, GPT-5.6 Terra or Qwen3 6?
- GPT-5.6 Terra streams faster: 79 against 59 output tokens per second.
- Which has the larger context window?
- GPT-5.6 Terra accepts more context: 1M against 246k tokens.