| Codestral | Claude Haiku 4.5 | |
|---|---|---|
| arenaElo | 1254 | 1274 |
| humanEval | 89.7 | 78.2 |
| sweBench | 35 | 40.6 |
| mmlu | 73.2 | 81.5 |
| gpqa | 41 | 48 |
| aime | 30 | 60 |
| Price in/out ($/M) | $0.3 / $0.9 | $1 / $5 |
Codestral is purpose-built for coding and edges Haiku 4.5 on HumanEval (89.7 vs 78.2) at similar cost. Haiku 4.5 is the better all-rounder when you also need chat, summarization or agent steps. For pure IDE autocomplete, pick Codestral; for a versatile assistant, Haiku.