Model comparison
GPT-5.3 Chat vs Qwen3.5 35B-A3B
GPT-5.3 Chat and Qwen3.5 35B-A3B score almost the same on the Noometry Index (42.8 vs 42.0), so choose on price, context window or the category you care about most.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. GPT-5.3 Chat scores higher in 5 categories and Qwen3.5 35B-A3B in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5 35B-A3B leads 47.8 to 38.8.
- Qwen3.5 35B-A3B is cheaper at $0.25 / $2 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
- Qwen3.5 35B-A3B accepts more context: 262K tokens versus 128K.
- Qwen3.5 35B-A3B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Qwen3.5 35B-A3B | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 42.8 | 42.0 |
| Released | 2026-03-03 | 2026-02-01 |
| Weights | Proprietary | Open |
| Context window | 128K | 262K |
| Max output | 16K | 66K |
| Input $ / M tokens | $1.75 | $0.25 |
| Output $ / M tokens | $14 | $2 |
| Results tracked | 18 | 28 |
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Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 41.4 (#124), Qwen3.5 35B-A3B: 33.8 (#251)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Coding | 1408 | 1410 |
| LMArena WebDev | — | 1254 |
| SciCode | — | 29.3% |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 28.5 (#102), Qwen3.5 35B-A3B: 24.6 (#161)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1400 |
| CritPt | — | 0.6% |
| Chess Puzzles | — | 10% |
| DTBench | — | 80% |
| LMCA | — | 29.5% |
| Epoch Capabilities Index | — | 142.52 |
Math Qwen3.5 35B-A3B leads
GPT-5.3 Chat: 38.2 (#142), Qwen3.5 35B-A3B: 39.9 (#97)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Math | 1389 | 1404 |
| MathArena Final-Answer Competitions | — | 56% |
| OTIS Mock AIME 2024-2025 | — | 70% |
Knowledge Qwen3.5 35B-A3B leads
GPT-5.3 Chat: 38.8 (#140), Qwen3.5 35B-A3B: 47.8 (#79)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Expert | 1397 | 1408 |
| GPQA Diamond | — | 83.5% |
| Vectara Hallucination Rate | — | 10.5% |
Multilingual Too close to call
GPT-5.3 Chat: 50.3 (#124), Qwen3.5 35B-A3B: 50.0 (#127)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Non-English | 1382 | 1378 |
| LMArena Chinese | 1432 | 1457 |
| LMArena French | 1397 | 1412 |
| LMArena German | 1384 | 1367 |
| LMArena Japanese | 1352 | 1325 |
| LMArena Korean | 1346 | 1356 |
| LMArena Russian | 1400 | 1376 |
| LMArena Spanish | 1371 | 1392 |
Instruction Following Too close to call
GPT-5.3 Chat: 72.8 (#129), Qwen3.5 35B-A3B: 72.8 (#128)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Instruction Following | 1378 | 1379 |
Long Context Too close to call
GPT-5.3 Chat: 42.6 (#120), Qwen3.5 35B-A3B: 42.4 (#127)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Longer Query | 1396 | 1389 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.1 (#68), Qwen3.5 35B-A3B: 57.9 (#124)
| Benchmark | GPT-5.3 Chat | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Text | 1389 | 1395 |
| LMArena Creative Writing | 1355 | 1346 |
| LMArena Multi-Turn | 1412 | 1390 |
| EQ-Bench Creative Writing | 1690 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Qwen3.5 35B-A3B?
GPT-5.3 Chat and Qwen3.5 35B-A3B score almost the same on the Noometry Index (42.8 vs 42.0), so choose on price, context window or the category you care about most.
Which is cheaper, GPT-5.3 Chat or Qwen3.5 35B-A3B?
Qwen3.5 35B-A3B is cheaper. It lists at $0.25 per million input tokens and $2 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.
Is GPT-5.3 Chat or Qwen3.5 35B-A3B better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 33.8 in the Noometry coding category.
Which has the bigger context window?
Qwen3.5 35B-A3B does, with 262K tokens against 128K.
How many benchmarks do GPT-5.3 Chat and Qwen3.5 35B-A3B share?
17 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Qwen3.5 35B-A3B has 28.