Model comparison
GPT-5.2 vs Qwen3.5-9B
GPT-5.2 is the stronger model overall, scoring 54.1 to 33.3 on the Noometry Index. Qwen3.5-9B costs 43× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.
Last verified . 8 shared benchmarks.
Alibaba (Qwen)Summary
- They share 8 benchmarks with published results for both. GPT-5.2 scores higher in 5 categories and Qwen3.5-9B in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.2 leads 50.1 to 22.5.
- The biggest single-benchmark swing is Terminal-Bench: 64.9% for GPT-5.2 and 9.2% for Qwen3.5-9B.
- Qwen3.5-9B is cheaper at $0.10 / $0.15 per million input/output tokens, against $1.75 / $14 for GPT-5.2.
- GPT-5.2 accepts more context: 400K tokens versus 262K.
- Qwen3.5-9B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.2 | Qwen3.5-9B | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 54.1 | 33.3 |
| Released | 2025-12-11 | 2026-02-23 |
| Weights | Proprietary | Open |
| Context window | 400K | 262K |
| Max output | 128K | 66K |
| Input $ / M tokens | $1.75 | $0.10 |
| Output $ / M tokens | $14 | $0.15 |
| Results tracked | 67 | 10 |
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Category by category
Coding GPT-5.2 leads
GPT-5.2: 52.2 (#32), Qwen3.5-9B: 35.3 (#213)
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| SWE-bench Verified | 73.8% | — |
| SWE-bench Verified (bash only) | 72.8% | — |
| LMArena WebDev | 1415 | — |
| SWE-bench Multilingual | 66.7% | — |
| SciCode | — | 27.5% |
| GSO | 27.4% | — |
| WeirdML | 72.2% | — |
| LMArena Coding | 1447 | — |
| ALE-Bench | 1,294 | — |
| AlgoTune | 2.05 | — |
Agentic & Tool Use GPT-5.2 leads
GPT-5.2: 40.0 (#24), Qwen3.5-9B: 14.4 (#143)
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | 64.9% | 9.2% |
| Berkeley Function Calling Leaderboard | 55.9% | — |
| GDPval | 49.7% | — |
| Remote Labor Index | 2.5% | — |
| τ²-bench Airline | 83% | — |
| τ²-bench Banking | 32.2% | — |
| τ²-bench Retail | 81.6% | — |
| τ²-bench Telecom | 89.7% | — |
| DeepResearch Bench | 41.1% | — |
| LMArena Search | 1207 | — |
| METR Time Horizons | 75.3% | — |
| Vending-Bench 2 | 3,591 | — |
Reasoning GPT-5.2 leads
GPT-5.2: 50.1 (#33), Qwen3.5-9B: 22.5 (#178)
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| Chess Puzzles | 49% | 12% |
| DTBench | 90.9% | 71.2% |
| LMCA | 43.9% | 24.5% |
| Epoch Capabilities Index | 153.45 | 139.45 |
| ARC-AGI-2 | 52.9% | — |
| SimpleBench | 45.8% | — |
| Kagi LLM Benchmark | 73.3% | — |
| NYT Connections (extended) | 83.6% | — |
| ARC-AGI-1 | 86.2% | — |
| CritPt | — | 0.3% |
| EnigmaEval | 10.4% | — |
| EBR-Bench | 23% | — |
| LMArena Hard Prompts | 1445 | — |
| Mystery Game Puzzles | 23% | — |
| ForecastBench | 60.1 | — |
Math GPT-5.2 leads
GPT-5.2: 59.8 (#32), Qwen3.5-9B: 33.5 (#174)
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| MathArena Final-Answer Competitions | 72% | 48.5% |
| OTIS Mock AIME 2024-2025 | 96.1% | 61.7% |
| FrontierMath (Tiers 1-3) | 67.4% | — |
| FrontierMath Tier 4 | 31.7% | — |
| ProofBench | 15% | — |
| LMArena Math | 1439 | — |
| FrontierMath (Feb 2025 set) | 40.7% | — |
| FrontierMath Tier 4 (v1) | 18.8% | — |
Knowledge GPT-5.2 leads
GPT-5.2: 59.2 (#29), Qwen3.5-9B: 46.0 (#77)
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | 91.4% | 79% |
| Humanity's Last Exam | 27.8% | — |
| SimpleQA Verified | 37.1% | — |
| Vectara Hallucination Rate | 8.4% | — |
| LMArena Expert | 1445 | — |
Multimodal Not comparable
GPT-5.2: 50.9 (#7), Qwen3.5-9B: —
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| LMArena Vision | 1268 | — |
| VPCT | 84% | — |
| Furniture Assembly | 38.3% | — |
| LMArena Document | 1405 | — |
Multilingual Not comparable
GPT-5.2: 53.6 (#63), Qwen3.5-9B: —
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| LMArena Non-English | 1425 | — |
| LMArena Chinese | 1460 | — |
| LMArena French | 1456 | — |
| LMArena German | 1448 | — |
| LMArena Japanese | 1421 | — |
| LMArena Korean | 1390 | — |
| LMArena Russian | 1440 | — |
| LMArena Spanish | 1433 | — |
Instruction Following Not comparable
GPT-5.2: 74.9 (#83), Qwen3.5-9B: —
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| LMArena Instruction Following | 1417 | — |
Long Context Not comparable
GPT-5.2: 44.0 (#74), Qwen3.5-9B: —
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| CL-bench | 18.2% | — |
| LMArena Longer Query | 1428 | — |
Writing & Preference Not comparable
GPT-5.2: 67.0 (#30), Qwen3.5-9B: —
| Benchmark | GPT-5.2 | Qwen3.5-9B |
|---|---|---|
| LMArena Text | 1439 | — |
| LMArena Creative Writing | 1402 | — |
| EQ-Bench Creative Writing | 1703 | — |
| LMArena Multi-Turn | 1458 | — |
Frequently asked questions
Is GPT-5.2 better than Qwen3.5-9B?
GPT-5.2 is the stronger model overall, scoring 54.1 to 33.3 on the Noometry Index. Qwen3.5-9B costs 43× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.
Which is cheaper, GPT-5.2 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-5.2 lists at $1.75 and $14.
Is GPT-5.2 or Qwen3.5-9B better for coding?
GPT-5.2 scores higher on coding benchmarks: 52.2 versus 35.3 in the Noometry coding category.
Which has the bigger context window?
GPT-5.2 does, with 400K tokens against 262K.
How many benchmarks do GPT-5.2 and Qwen3.5-9B share?
8 benchmarks have published results for both models. GPT-5.2 has 67 scored results on Noometry and Qwen3.5-9B has 10.