GPT-5.1-Codex vs Mistral Small 3 24B Base
OpenAI vs Mistral AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1-Codex has the higher intelligence index (88.2 vs 44.4)
| GPT-5.1-Codex | Mistral Small 3 24B Base | |
|---|---|---|
| Intelligence index | 88.2 | 44.4 |
| Developer | OpenAI | Mistral AI |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | 400,000 tokens | — |
| Input price | $1.25 / 1M | — |
| Output price | $10.00 / 1M | — |
| Speed | 188 tok/s | — |
| Released | November 13, 2025 | January 30, 2025 |
| Parameters | — | 23600000000 |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |
Shared benchmarks
GPT-5.1-Codex
Mistral Small 3 24B Base
GPQA Diamond
86
34.4
MMLU-Pro
86
54.4