Model comparison
GPT-5.3 Codex vs Qwen3.7 Flash
GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 39.9 on the Noometry Index. Qwen3.7 Flash costs 88× less per token, which makes it the better buy when GPT-5.3 Codex's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both.
- Qwen3.7 Flash is cheaper at $0.03 / $0.13 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Codex.
- Qwen3.7 Flash accepts more context: 1M tokens versus 400K.
Side by side
| GPT-5.3 Codex | Qwen3.7 Flash | |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 45.8 | 39.9 |
| Released | 2026-02-05 | 2026-07-15 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 1M |
| Max output | 128K | 131K |
| Input $ / M tokens | $1.75 | $0.03 |
| Output $ / M tokens | $14 | $0.13 |
| Results tracked | 8 | 7 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Not comparable
GPT-5.3 Codex: 48.6 (#56), Qwen3.7 Flash: —
| Benchmark | GPT-5.3 Codex | Qwen3.7 Flash |
|---|---|---|
| SWE-bench Verified | 74.8% | — |
| LMArena WebDev | 1409 | — |
| WeirdML | 79.3% | — |
| ALE-Bench | 1,655 | — |
Agentic & Tool Use Not comparable
GPT-5.3 Codex: 48.0 (#9), Qwen3.7 Flash: —
| Benchmark | GPT-5.3 Codex | Qwen3.7 Flash |
|---|---|---|
| Terminal-Bench | 78.4% | — |
| METR Time Horizons | 74.5% | — |
| Vending-Bench 2 | 5,940 | — |
Reasoning Not comparable
GPT-5.3 Codex: —, Qwen3.7 Flash: 28.2 (#108)
| Benchmark | GPT-5.3 Codex | Qwen3.7 Flash |
|---|---|---|
| Epoch Capabilities Index | 156.77 | 144.64 |
| NYT Connections (extended) | — | 43.8% |
| Chess Puzzles | — | 23% |
| Mystery Game Puzzles | — | 15% |
Math Not comparable
GPT-5.3 Codex: —, Qwen3.7 Flash: 38.3 (#140)
| Benchmark | GPT-5.3 Codex | Qwen3.7 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 19.3% |
| OTIS Mock AIME 2024-2025 | — | 86.7% |
Knowledge Not comparable
GPT-5.3 Codex: —, Qwen3.7 Flash: 48.9 (#75)
| Benchmark | GPT-5.3 Codex | Qwen3.7 Flash |
|---|---|---|
| GPQA Diamond | — | 82.3% |
Frequently asked questions
Is GPT-5.3 Codex better than Qwen3.7 Flash?
GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 39.9 on the Noometry Index. Qwen3.7 Flash costs 88× less per token, which makes it the better buy when GPT-5.3 Codex's lead doesn't matter for your workload.
Which is cheaper, GPT-5.3 Codex or Qwen3.7 Flash?
Qwen3.7 Flash is cheaper. It lists at $0.03 per million input tokens and $0.13 per million output tokens; GPT-5.3 Codex lists at $1.75 and $14.
Which has the bigger context window?
Qwen3.7 Flash does, with 1M tokens against 400K.
How many benchmarks do GPT-5.3 Codex and Qwen3.7 Flash share?
1 benchmark has published results for both models. GPT-5.3 Codex has 8 scored results on Noometry and Qwen3.7 Flash has 7.