Grok-4 Heavy vs Magistral Medium
xAI vs Mistral AI — benchmarks, pricing, and capabilities side by side.
- •Grok-4 Heavy has the higher intelligence index (89.3 vs 62.9)
| Grok-4 Heavy | Magistral Medium | |
|---|---|---|
| Intelligence index | 89.3 | 62.9 |
| Developer | xAI | Mistral AI |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | — | — |
| Input price | — | — |
| Output price | — | — |
| Speed | — | — |
| Released | July 9, 2025 | June 10, 2025 |
| Parameters | — | 24000000000 |
| Input modalities | — | — |
| Output modalities | — | — |
Shared benchmarks
Grok-4 Heavy
Magistral Medium
AIME 2025
100
64.9
GPQA Diamond
88.4
70.8
Humanity’s Last Exam
50.7
9
LiveCodeBench
79.4
50.3