Claude Fable 5

Intelligence

163.0 ECI

90% range: 160.56 to 167.1 on the Epoch Capabilities Index.

Price per million tokens

Input

$10

Output

$50

Cached input

$1

Blended

$20

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

On our coding tasks

Mean cost per task

$0.66 at list price

Mean output tokens

2,421

Time per task

33.1 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.