GPT-5.1-Codex vs Pixtral-12B
OpenAI vs Mistral AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1-Codex has the higher intelligence index (88.2 vs 66.1)
- •Pixtral-12B is cheaper ($0.15 vs $1.25 per 1M input)
- •GPT-5.1-Codex is faster
- •GPT-5.1-Codex has a larger context window (400K)
| GPT-5.1-Codex | Pixtral-12B | |
|---|---|---|
| Intelligence index | 88.2 | 66.1 |
| Developer | OpenAI | Mistral AI |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 128,000 tokens |
| Input price | $1.25 / 1M | $0.15 / 1M |
| Output price | $10.00 / 1M | $0.15 / 1M |
| Speed | 188 tok/s | 0 tok/s |
| Released | November 13, 2025 | September 17, 2024 |
| Parameters | — | 12400000000 |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |