Model comparison
GPT-5.4 Pro vs Qwen3.5-9B
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 33.8 on the Noometry Index. Qwen3.5-9B costs 600× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Last verified . 4 shared benchmarks.
Alibaba (Qwen)Summary
- They share 4 benchmarks with published results for both. GPT-5.4 Pro scores higher in 4 categories and Qwen3.5-9B in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 70.7 to 23.1.
- The biggest single-benchmark swing is Chess Puzzles: 58.6% for GPT-5.4 Pro and 12% for Qwen3.5-9B.
- Qwen3.5-9B is cheaper at $0.10 / $0.15 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 262K.
- Qwen3.5-9B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.4 Pro | Qwen3.5-9B | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 58.9 | 33.8 |
| Released | 2026-03-05 | 2026-02-23 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 262K |
| Max output | 128K | 66K |
| Input $ / M tokens | $30 | $0.10 |
| Output $ / M tokens | $180 | $0.15 |
| Results tracked | 16 | 10 |
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Category by category
Coding GPT-5.4 Pro leads
GPT-5.4 Pro: 43.2 (#90), Qwen3.5-9B: 35.9 (#217)
Agentic & Tool Use Not comparable
GPT-5.4 Pro: —, Qwen3.5-9B: 14.5 (#151)
| Benchmark | GPT-5.4 Pro | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | — | 9.2% |
Reasoning GPT-5.4 Pro leads
GPT-5.4 Pro: 70.7 (#13), Qwen3.5-9B: 23.1 (#182)
| Benchmark | GPT-5.4 Pro | Qwen3.5-9B |
|---|---|---|
| CritPt | 30% | 0.3% |
| Chess Puzzles | 58.6% | 12% |
| Epoch Capabilities Index | 158.93 | 139.46 |
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| ARC-AGI-1 | 94.5% | — |
| EnigmaEval | 23.8% | — |
| DTBench | — | 71.2% |
| LMCA | — | 24.5% |
Math GPT-5.4 Pro leads
GPT-5.4 Pro: 72.4 (#22), Qwen3.5-9B: 34.8 (#192)
| Benchmark | GPT-5.4 Pro | Qwen3.5-9B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| MathArena Final-Answer Competitions | — | 48.5% |
| OTIS Mock AIME 2024-2025 | — | 61.7% |
| FrontierMath (Feb 2025 set) | 50% | — |
| FrontierMath Tier 4 (v1) | 37.5% | — |
Knowledge GPT-5.4 Pro leads
GPT-5.4 Pro: 68.3 (#7), Qwen3.5-9B: 46.0 (#84)
| Benchmark | GPT-5.4 Pro | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | 94.6% | 79% |
| Humanity's Last Exam | 44.3% | — |
| SimpleQA Verified | 46.3% | — |
| Vectara Hallucination Rate | 8.3% | — |
Frequently asked questions
Is GPT-5.4 Pro better than Qwen3.5-9B?
GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 33.8 on the Noometry Index. Qwen3.5-9B costs 600× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Which is cheaper, GPT-5.4 Pro or Qwen3.5-9B?
Qwen3.5-9B is cheaper. It lists at $0.10 per million input tokens and $0.15 per million output tokens; GPT-5.4 Pro lists at $30 and $180.
Is GPT-5.4 Pro or Qwen3.5-9B better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 43.2 versus 35.9 in the Noometry coding category.
Which has the bigger context window?
GPT-5.4 Pro does, with 1.05M tokens against 262K.
How many benchmarks do GPT-5.4 Pro and Qwen3.5-9B share?
4 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Qwen3.5-9B has 10.