Devstral 2 vs Grok 4.20 0309 v2
Mistral AI vs xAI — benchmarks, pricing, and capabilities side by side.
- •Grok 4.20 0309 v2 has the higher intelligence index (91.1 vs 54.3)
- •Devstral 2 is cheaper ($0.40 vs $2.00 per 1M input)
- •Grok 4.20 0309 v2 is faster
| Devstral 2 | Grok 4.20 0309 v2 | |
|---|---|---|
| Intelligence index | 54.3 | 91.1 |
| Developer | Mistral AI | xAI |
| Type | LLM | LLM |
| Access | Open weights | — |
| Context window | 262,144 tokens | — |
| Input price | $0.40 / 1M | $2.00 / 1M |
| Output price | $2.00 / 1M | $6.00 / 1M |
| Speed | 51 tok/s | 105 tok/s |
| Released | December 9, 2025 | April 7, 2026 |
| Parameters | — | — |
| Input modalities | Text | — |
| Output modalities | Text | — |
Shared benchmarks
Devstral 2
Grok 4.20 0309 v2
GPQA Diamond
59.4
91.1
Humanity’s Last Exam
3.6
32.2