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
304050607080Apr 26Jul 26Oct 26Release dateDeepSWE 1.14.64.74.855.5
304050607080Apr 26Jul 26Oct 26Release dateDeepSWE 1.14.64.74.855.5

Benchmarks

in Coding
DeepSWE 157.7#2
SWE-rebench · all · 2026-03-01 to 2026-05-1556.5#1
SWE-rebench · Go · 2026-03-01 to 2026-05-150#1
SWE-rebench · Java · 2026-03-01 to 2026-05-150#1
SWE-rebench · Rust · 2026-03-01 to 2026-05-150#1
SWE-rebench · Python · 2026-03-01 to 2026-05-1556.5#1
SWE-rebench · TypeScript · 2026-03-01 to 2026-05-150#1
Terminal-Bench 2.1lab82.7
SWE-bench Pro (edition unstated)lab69.2
Meta Internal Coding Benchlab69
DeepSWE (edition unstated)lab58

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 334 in Chat & Knowledge, #28 of 132 in Coding, #41 of 133 in Agents & Tool Use, #12 of 195 in Writing & Language, #28 of 37 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Knowledge.

Is Claude Opus 4.8 better than DeepSeek V4 Pro 0813?›

On DeepSWE 1.1, Claude Opus 4.8 scores 59 vs 62.8 — lower.

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 It has been superseded by Claude Opus 5.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 GLM 5.3.

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?›

Gemini 3.8 Flash (cheaper), GPT-5.6 Luna (better), GLM 5.3 (open weights).