Claude Opus 4.8

May 2026
Claude Opus 4.8
Compare in
on
—per task?
$5 / $25per 1M in / outcache $0.50
—output speed?
1Mcontext

Alternatives?

History

9 versions
1,3001,3501,4001,4501,5001,550Jul 25Jan 26Jul 26Release dateArena Text · Japanese44.14.54.64.74.855.5
1,3001,3501,4001,4501,5001,550Jul 25Jan 26Jul 26Release dateArena Text · Japanese44.14.54.64.74.855.5

FAQ

How much does Claude Opus 4.8 cost?›

$5 per 1M input tokens and $25 per 1M output tokens; cached input $0.50 per 1M.

Is Claude Opus 4.8 free to use?›

There is no free API; the cheapest paid price is $5 per 1M input tokens.

How good is Claude Opus 4.8, and what is it best at?›

#14 of 336 in Chat & Knowledge, #30 of 134 in Coding, #43 of 135 in Agents & Tool Use, #21 of 197 in Writing & Language, #28 of 37 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Long context, Knowledge.

Is Claude Opus 4.8 better than Claude Opus 4.1?›

On Arena Text · Japanese, Claude Opus 4.8 scores 1,442.5 vs 1,377.6 — higher.

How can I use Claude Opus 4.8?›

Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.

What is the context window of Claude Opus 4.8?›

1M tokens, with up to 128K output tokens.

When was Claude Opus 4.8 released? Is there a newer version?›

Released 2026-05-28. It has been superseded by Claude Opus 5.

Is Claude Opus 4.8 open source?›

No, Claude Opus 4.8 is a closed model available through an API. The closest open-weights option here is Kimi K3.

Can Claude Opus 4.8 read images?›

It accepts text and images, PDF files as input.

What is Claude Opus 4.8?›

Claude Opus 4.8 is a closed language model from Anthropic, released May 2026, the successor to Claude Opus 4.1.

What are the best alternatives to Claude Opus 4.8?›

Claude Opus 5.5 (cheaper), GPT-5.6 Sol (better), Kimi K3 (open weights).