modelbenchmark.io

Claude Opus 4.8

Anthropic · claude-opus-4-8-default

Compare

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

Specification

most-agreed values

Context
1M
Max output
128K
Released
2026-05-28
Knowledge cutoff
2026-01
Retires
2027-05-28
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$5.00
Output
$25.00
Cache read
$0.50
Cache write
$6.25

Batch and priority prices

US dollars per million tokens · per listing

PriceListing$/M
Cache write, 1 hourvertex_ai-anthropic_models$10.00

Available from 3 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
google-vertex$5.00$25.00$0.50$6.251M128K
google-vertex-anthropic$5.00$25.00$0.50$6.251M128K
vertex_ai-anthropic_models$5.00$25.00$0.50$6.251M128K2027-05-28

Other listings of this model

this page is one of them

The corpus files Claude Opus 4.8 under several keys. This page is the claude-opus-4-8-default listing. The full record — every host, every price and every benchmark score — is on the main Claude Opus 4.8 page.

More from Anthropic

most-hosted first