Claude Opus 5.5 vs Devstral 2
Which is the better AI model in 2026? Here's how they compare.
Capability profile
Artificial Analysis indices (0–100). Missing dimensions show as 0.
Head to head
Claude Opus 5.5
Devstral 2
Intelligence
57.6
8.6
Coding
—
31.3
Math
—
36.7
Context window
1,000,000
262,144
Output price
$20/1M
$2/1M
Input price
$4/1M
$0.4/1M
Speed (t/s)
97
0
Knowledge cutoff
2026-06
2025-12
Open weights
No
Yes
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