GPT-5.1 Codex High vs Qwen3.5 27B: Specs & Benchmark Comparison
| Characteristic | GPT-5.1 Codex High | Qwen3.5 27B |
|---|---|---|
| Company | OpenAI | Alibaba |
| Release Date | November 11, 2025 | March 1, 2026 |
| Parameters | — | 27B |
| Multimodal | Yes | No |
| Context (input) | 400K | — |
| Context (output) | 128K | — |
| Input Price / 1M | $1.25 | — |
| Output Price / 1M | $10.00 | — |
| Average Score | 1.0 | 0.9 |
Verdict
Qwen3.5 27B leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.1 Codex High — 1.0, Qwen3.5 27B — 0.9.
Recency
Qwen3.5 27B is newer: released 3/1/2026 vs 11/11/2025.
More About These Models
Related Comparisons
The GPT-5.1 Codex High and Qwen3.5 27B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.1 Codex High or Qwen3.5 27B page. See also the complete list of AI model comparisons.