Model comparison
GPT-5.5 Pro vs Qwen3.5-2B
GPT-5.5 Pro has enough public results to be ranked (#7); Qwen3.5-2B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. GPT-5.5 Pro scores higher in 1 category and Qwen3.5-2B in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.6 to 18.5.
- The biggest single-benchmark swing is Chess Puzzles: 64% for GPT-5.5 Pro and 0% for Qwen3.5-2B.
- Qwen3.5-2B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.5 Pro | Qwen3.5-2B | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 64.3 | 28.7 |
| Released | 2026-04-23 | 2026-02-24 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 128K | — |
| Input $ / M tokens | $30 | — |
| Output $ / M tokens | $180 | — |
| Results tracked | 14 | 1 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Reasoning GPT-5.5 Pro leads
GPT-5.5 Pro: 73.6 (#7), Qwen3.5-2B: 18.5
| Benchmark | GPT-5.5 Pro | Qwen3.5-2B |
|---|---|---|
| Chess Puzzles | 64% | 0% |
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| DTBench | 96% | — |
| LMCA | 53.9% | — |
| Epoch Capabilities Index | 162.45 | — |
Math Not comparable
GPT-5.5 Pro: 83.8 (#8), Qwen3.5-2B: —
| Benchmark | GPT-5.5 Pro | Qwen3.5-2B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |
Knowledge Not comparable
GPT-5.5 Pro: 64.2 (#17), Qwen3.5-2B: —
| Benchmark | GPT-5.5 Pro | Qwen3.5-2B |
|---|---|---|
| GPQA Diamond | 93.9% | — |
Frequently asked questions
Is GPT-5.5 Pro better than Qwen3.5-2B?
GPT-5.5 Pro has enough public results to be ranked (#7); Qwen3.5-2B does not yet, so treat this comparison as directional.
How many benchmarks do GPT-5.5 Pro and Qwen3.5-2B share?
1 benchmark has published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Qwen3.5-2B has 1.