Claude Opus 5

Intelligence

164.5 ECI

90% range: 161.69 to 168.29 on the Epoch Capabilities Index.

Price per million tokens

Input

$5

Output

$25

Cached input

$0.50

Blended

$10

From the lab's price page, checked 2026-11-01.

On our coding tasks

Mean cost per task

$0.34 at list price

Mean output tokens

2,621

Time per task

36.4 s median

Included tasks passed

18 of 18

Interrupted attempts excluded

0

Run with

Claude Code headless, effort high, 2026-11-01

Historical plan observations

No historical plan observation is linked to this model.

Historical observations do not establish current-tier allowances. Allowance dates, ranges and assumptions.