Model comparison
GPT-5.3 Chat vs Qwen3.5 Plus
GPT-5.3 Chat and Qwen3.5 Plus score almost the same on the Noometry Index (42.8 vs 42.9), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
Alibaba (Qwen)Summary
- The widest gap is in math, where Qwen3.5 Plus leads 49.6 to 38.2.
- Qwen3.5 Plus is cheaper at $0.40 / $2.40 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
- Qwen3.5 Plus accepts more context: 1M tokens versus 128K.
Side by side
| GPT-5.3 Chat | Qwen3.5 Plus | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 42.8 | 42.9 |
| Released | 2026-03-03 | 2026-02-16 |
| Weights | Proprietary | Proprietary |
| Context window | 128K | 1M |
| Max output | 16K | 66K |
| Input $ / M tokens | $1.75 | $0.40 |
| Output $ / M tokens | $14 | $2.40 |
| Results tracked | 18 | 15 |
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Category by category
Coding Not comparable
GPT-5.3 Chat: 41.4 (#124), Qwen3.5 Plus: —
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| LMArena Coding | 1408 | — |
| ALE-Bench | — | 621.92 |
Agentic & Tool Use Not comparable
GPT-5.3 Chat: —, Qwen3.5 Plus: —
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| Vending-Bench 2 | — | 0.54 |
Reasoning Qwen3.5 Plus leads
GPT-5.3 Chat: 28.5 (#102), Qwen3.5 Plus: 32.8 (#74)
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| Chess Puzzles | — | 22% |
| LMArena Hard Prompts | 1399 | — |
| Mystery Game Puzzles | — | 17% |
| DTBench | — | 80.5% |
| LMCA | — | 36.4% |
| Epoch Capabilities Index | — | 146.78 |
Math Qwen3.5 Plus leads
GPT-5.3 Chat: 38.2 (#142), Qwen3.5 Plus: 49.6 (#61)
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| LMArena Math | 1389 | — |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Qwen3.5 Plus leads
GPT-5.3 Chat: 38.8 (#140), Qwen3.5 Plus: 46.0 (#83)
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | — | 84.8% |
| SimpleQA Verified | — | 25.4% |
| Vectara Hallucination Rate | — | 10.7% |
| LMArena Expert | 1397 | — |
Multilingual Not comparable
GPT-5.3 Chat: 50.3 (#124), Qwen3.5 Plus: —
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| LMArena Non-English | 1382 | — |
| LMArena Chinese | 1432 | — |
| LMArena French | 1397 | — |
| LMArena German | 1384 | — |
| LMArena Japanese | 1352 | — |
| LMArena Korean | 1346 | — |
| LMArena Russian | 1400 | — |
| LMArena Spanish | 1371 | — |
Instruction Following Not comparable
GPT-5.3 Chat: 72.8 (#129), Qwen3.5 Plus: —
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| LMArena Instruction Following | 1378 | — |
Long Context Too close to call
GPT-5.3 Chat: 42.6 (#120), Qwen3.5 Plus: 43.0 (#113)
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
| LMArena Longer Query | 1396 | — |
Writing & Preference Not comparable
GPT-5.3 Chat: 63.1 (#68), Qwen3.5 Plus: —
| Benchmark | GPT-5.3 Chat | Qwen3.5 Plus |
|---|---|---|
| LMArena Text | 1389 | — |
| LMArena Creative Writing | 1355 | — |
| EQ-Bench Creative Writing | 1690 | — |
| LMArena Multi-Turn | 1412 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Qwen3.5 Plus?
GPT-5.3 Chat and Qwen3.5 Plus score almost the same on the Noometry Index (42.8 vs 42.9), so choose on price, context window or the category you care about most.
Which is cheaper, GPT-5.3 Chat or Qwen3.5 Plus?
Qwen3.5 Plus is cheaper. It lists at $0.40 per million input tokens and $2.40 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.
Which has the bigger context window?
Qwen3.5 Plus does, with 1M tokens against 128K.
How many benchmarks do GPT-5.3 Chat and Qwen3.5 Plus share?
0 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Qwen3.5 Plus has 15.