Claude 4 Opus

Name: Claude 4 Opus
Author: Anthropic

Claude 4 Opus is an AI model from Anthropic.

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Notes

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Attribution

Context

200K

Weights

Closed

API only

Input

$15

/1M tok

Output

$75

/1M tok

Blended

$30

Speed

Price & speed via Artificial Analysis · ranked across tracked models

Reasoning effort	Index	Speed
Reasoning	20.6	0 t/s
Non-reasoning	16.6	0 t/s

Intelligence Index per reasoning-effort setting, via Artificial Analysis · pricing identical across tiers

Reported on 16 evals across 10 domains - best 98.2% on MATH-500 · #10 of 190

Reported eval scores