Model comparison
GPT-5.5 Pro vs Qwen3.8 Max
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 56.0 on the Noometry Index. Qwen3.8 Max costs 23× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.
Last verified . 9 shared benchmarks.
Alibaba (Qwen)Summary
- They share 9 benchmarks with published results for both. GPT-5.5 Pro scores higher in 3 categories and Qwen3.8 Max in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.6 to 53.4.
- The biggest single-benchmark swing is FrontierMath Tier 4: 78% for GPT-5.5 Pro and 46.3% for Qwen3.8 Max.
- Qwen3.8 Max is cheaper at $2 / $6 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
- GPT-5.5 Pro accepts more context: 1.05M tokens versus 1M.
Side by side
| GPT-5.5 Pro | Qwen3.8 Max | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 64.3 | 56.0 |
| Released | 2026-04-23 | 2026-08-02 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1M |
| Max output | 128K | 131K |
| Input $ / M tokens | $30 | $2 |
| Output $ / M tokens | $180 | $6 |
| Results tracked | 14 | 38 |
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Category by category
Coding Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 52.3 (#30)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| DeepSWE | — | 57.5% |
| LMArena WebDev | — | 1671 |
| FrontierSWE | — | 15.8% |
| SciCode | — | 52.9% |
| LMArena Coding | — | 1499 |
Agentic & Tool Use Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 42.6 (#17)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| τ²-bench Banking | — | 55.1% |
| GDP.pdf | — | 23.2% |
Reasoning GPT-5.5 Pro leads
GPT-5.5 Pro: 73.6 (#7), Qwen3.8 Max: 53.4 (#26)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| CritPt | 30.6% | 20% |
| Chess Puzzles | 64% | 40% |
| DTBench | 96% | 92% |
| LMCA | 53.9% | 46.2% |
| Epoch Capabilities Index | 162.45 | 156.69 |
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| NYT Connections (extended) | — | 88.3% |
| ARC-AGI-1 | 96.5% | — |
| LMArena Hard Prompts | — | 1493 |
| Mystery Game Puzzles | — | 38% |
Math GPT-5.5 Pro leads
GPT-5.5 Pro: 83.8 (#8), Qwen3.8 Max: 73.1 (#15)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | 74.7% |
| FrontierMath Tier 4 | 78% | 46.3% |
| OTIS Mock AIME 2024-2025 | 100% | 100% |
| ProofBench | — | 58% |
| LMArena Math | — | 1498 |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |
Knowledge GPT-5.5 Pro leads
GPT-5.5 Pro: 64.2 (#17), Qwen3.8 Max: 61.7 (#25)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| GPQA Diamond | 93.9% | 92.7% |
| SimpleQA Verified | — | 47.3% |
| LMArena Expert | — | 1504 |
Multimodal Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 36.9 (#70)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| LMArena Vision | — | 1314 |
| Furniture Assembly | — | 20% |
Multilingual Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 56.6 (#18)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| LMArena Non-English | — | 1468 |
| LMArena Chinese | — | 1537 |
| LMArena French | — | 1502 |
| LMArena German | — | 1489 |
| LMArena Japanese | — | 1466 |
| LMArena Korean | — | 1467 |
| LMArena Russian | — | 1478 |
| LMArena Spanish | — | 1495 |
Instruction Following Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 77.7 (#19)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| LMArena Instruction Following | — | 1478 |
Long Context Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 45.5 (#30)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| LMArena Longer Query | — | 1486 |
Writing & Preference Not comparable
GPT-5.5 Pro: —, Qwen3.8 Max: 67.0 (#31)
| Benchmark | GPT-5.5 Pro | Qwen3.8 Max |
|---|---|---|
| LMArena Text | — | 1480 |
| LMArena Creative Writing | — | 1478 |
| LMArena Multi-Turn | — | 1487 |
Frequently asked questions
Is GPT-5.5 Pro better than Qwen3.8 Max?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 56.0 on the Noometry Index. Qwen3.8 Max costs 23× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.
Which is cheaper, GPT-5.5 Pro or Qwen3.8 Max?
Qwen3.8 Max is cheaper. It lists at $2 per million input tokens and $6 per million output tokens; GPT-5.5 Pro lists at $30 and $180.
Which has the bigger context window?
GPT-5.5 Pro does, with 1.05M tokens against 1M.
How many benchmarks do GPT-5.5 Pro and Qwen3.8 Max share?
9 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Qwen3.8 Max has 38.