Model comparison
GPT-5.3 Codex vs Qwen3.5 Max Preview
GPT-5.3 Codex and Qwen3.5 Max Preview score almost the same on the Noometry Index (45.8 vs 45.3), 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 coding, where GPT-5.3 Codex leads 48.6 to 44.0.
Side by side
| GPT-5.3 Codex | Qwen3.5 Max Preview | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 45.8 | 45.3 |
| Released | 2026-02-05 | — |
| Weights | Proprietary | Proprietary |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 8 | 17 |
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Category by category
Coding GPT-5.3 Codex leads
GPT-5.3 Codex: 48.6 (#56), Qwen3.5 Max Preview: 44.0 (#77)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| SWE-bench Verified | 74.8% | — |
| LMArena WebDev | 1409 | — |
| WeirdML | 79.3% | — |
| LMArena Coding | — | 1487 |
| ALE-Bench | 1,655 | — |
Agentic & Tool Use Not comparable
GPT-5.3 Codex: 48.0 (#9), Qwen3.5 Max Preview: —
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| Terminal-Bench | 78.4% | — |
| METR Time Horizons | 74.5% | — |
| Vending-Bench 2 | 5,940 | — |
Reasoning Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 30.8 (#84)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Hard Prompts | — | 1483 |
| Epoch Capabilities Index | 156.77 | — |
Math Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 40.1 (#94)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Math | — | 1474 |
Knowledge Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 41.8 (#107)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Expert | — | 1489 |
Multilingual Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 56.2 (#22)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Non-English | — | 1465 |
| LMArena Chinese | — | 1534 |
| LMArena French | — | 1484 |
| LMArena German | — | 1487 |
| LMArena Japanese | — | 1495 |
| LMArena Korean | — | 1438 |
| LMArena Russian | — | 1471 |
| LMArena Spanish | — | 1470 |
Instruction Following Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 77.0 (#31)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Instruction Following | — | 1467 |
Long Context Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 45.2 (#45)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Longer Query | — | 1476 |
Writing & Preference Not comparable
GPT-5.3 Codex: —, Qwen3.5 Max Preview: 66.0 (#41)
| Benchmark | GPT-5.3 Codex | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Text | — | 1470 |
| LMArena Creative Writing | — | 1464 |
| LMArena Multi-Turn | — | 1478 |
Frequently asked questions
Is GPT-5.3 Codex better than Qwen3.5 Max Preview?
GPT-5.3 Codex and Qwen3.5 Max Preview score almost the same on the Noometry Index (45.8 vs 45.3), so choose on price, context window or the category you care about most.
Is GPT-5.3 Codex or Qwen3.5 Max Preview better for coding?
GPT-5.3 Codex scores higher on coding benchmarks: 48.6 versus 44.0 in the Noometry coding category.
How many benchmarks do GPT-5.3 Codex and Qwen3.5 Max Preview share?
0 benchmarks have published results for both models. GPT-5.3 Codex has 8 scored results on Noometry and Qwen3.5 Max Preview has 17.