Model comparison
GPT-5.5 Pro vs Qwen3.6 Flash
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 38.4 on the Noometry Index. Qwen3.6 Flash costs 160× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.
Last verified . 10 shared benchmarks.
Alibaba (Qwen)Summary
- They share 10 benchmarks with published results for both. GPT-5.5 Pro scores higher in 3 categories and Qwen3.6 Flash in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.5 Pro leads 83.8 to 38.0.
- The biggest single-benchmark swing is FrontierMath (Tiers 1-3): 87.7% for GPT-5.5 Pro and 22.5% for Qwen3.6 Flash.
- Qwen3.6 Flash is cheaper at $0.19 / $1.13 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 | Qwen3.6 Flash | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 64.3 | 38.4 |
| Released | 2026-04-23 | 2026-04-27 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 1M |
| Max output | 128K | 66K |
| Input $ / M tokens | $30 | $0.19 |
| Output $ / M tokens | $180 | $1.13 |
| Results tracked | 14 | 13 |
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Category by category
Coding Not comparable
GPT-5.5 Pro: —, Qwen3.6 Flash: —
| Benchmark | GPT-5.5 Pro | Qwen3.6 Flash |
|---|---|---|
| ALE-Bench | — | 326.4 |
Reasoning GPT-5.5 Pro leads
GPT-5.5 Pro: 73.6 (#7), Qwen3.6 Flash: 28.4 (#90)
| Benchmark | GPT-5.5 Pro | Qwen3.6 Flash |
|---|---|---|
| SimpleBench | 76.9% | 35.2% |
| Chess Puzzles | 64% | 20% |
| DTBench | 96% | 77.1% |
| LMCA | 53.9% | 31% |
| Epoch Capabilities Index | 162.45 | 143.26 |
| ARC-AGI-2 | 84.6% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Mystery Game Puzzles | — | 18% |
Math GPT-5.5 Pro leads
GPT-5.5 Pro: 83.8 (#8), Qwen3.6 Flash: 38.0 (#88)
| Benchmark | GPT-5.5 Pro | Qwen3.6 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | 22.5% |
| OTIS Mock AIME 2024-2025 | 100% | 84.4% |
| FrontierMath (Feb 2025 set) | 52.4% | 10.3% |
| FrontierMath Tier 4 (v1) | 39.6% | 0% |
| FrontierMath Tier 4 | 78% | — |
Knowledge GPT-5.5 Pro leads
GPT-5.5 Pro: 64.2 (#17), Qwen3.6 Flash: 42.2 (#90)
| Benchmark | GPT-5.5 Pro | Qwen3.6 Flash |
|---|---|---|
| GPQA Diamond | 93.9% | 83.3% |
| SimpleQA Verified | — | 15.9% |
Frequently asked questions
Is GPT-5.5 Pro better than Qwen3.6 Flash?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 38.4 on the Noometry Index. Qwen3.6 Flash costs 160× 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 Qwen3.6 Flash?
Qwen3.6 Flash is cheaper. It lists at $0.19 per million input tokens and $1.13 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 Qwen3.6 Flash share?
10 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Qwen3.6 Flash has 13.