GPT-5.1 vs Magistral Medium 1.2
OpenAI vs Mistral AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 78.1)
- •GPT-5.1 is cheaper ($1.25 vs $2.00 per 1M input)
- •GPT-5.1 is faster
| GPT-5.1 | Magistral Medium 1.2 | |
|---|---|---|
| Intelligence index | 89 | 78.1 |
| Developer | OpenAI | Mistral AI |
| Type | LLM | LLM |
| Access | API only | — |
| Context window | 400,000 tokens | — |
| Input price | $1.25 / 1M | $2.00 / 1M |
| Output price | $10.00 / 1M | $5.00 / 1M |
| Speed | 115 tok/s | 42 tok/s |
| Released | November 12, 2025 | September 18, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |
Shared benchmarks
GPT-5.1
Magistral Medium 1.2
AIME 2025
94
82
GPQA Diamond
88.1
73.9
Humanity’s Last Exam
26.5
9.6
LiveCodeBench
86.8
75
MMLU-Pro
87
81.5