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Claude Opus 5.5 (Fast)

anthropic/claude-opus-5-5-fast

Prices

Input

$8.00 per 1M tokens

low
Input (cache write)

$10.00 per 1M tokens

low
Input (cached read)

$0.40 per 1M tokens

low
Output

$40.00 per 1M tokens

low

Specifications

Provider
anthropic
Context window
1,000,000
Max output tokens
128,000
Open weights
no
Released
09/22/2026
Retires
no date announced
First seen by this tracker

Price history

No price of this model has changed since we started tracking it.

Input
8 per 1M tokens, unchanged since 09/23/2026
Output
40 per 1M tokens, unchanged since 09/23/2026
Input (cached read)
0.4 per 1M tokens, unchanged since 09/23/2026
Input (cache write)
10 per 1M tokens, unchanged since 09/23/2026

Last updated 10/01/2026, 02:10