GPT-5.3 Codex vs Qwen3.5-397B-A17B: Specs & Benchmark Comparison
| Characteristic | GPT-5.3 Codex | Qwen3.5-397B-A17B |
|---|---|---|
| Company | OpenAI | Alibaba |
| Release Date | February 5, 2026 | February 15, 2026 |
| Parameters | — | 397B |
| Multimodal | Yes | Yes |
| Context (input) | 400K | — |
| Context (output) | 128K | — |
| Input Price / 1M | $1.75 | — |
| Output Price / 1M | $14.00 | — |
| Average Score | 0.7 | 0.9 |
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: GPT-5.3 Codex — 0.7, Qwen3.5-397B-A17B — 0.9.
Recency
Both models were released around the same time: 2/5/2026 and 2/15/2026.
More About These Models
Related Comparisons
The GPT-5.3 Codex and Qwen3.5-397B-A17B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.3 Codex or Qwen3.5-397B-A17B page. See also the complete list of AI model comparisons.