Anthropic

Claude Opus 5

Anthropic · frontier. Complex agentic coding and enterprise work.

The published record

Every number below was read from the provider's own documentation on the date shown. benchr does not restate a figure it has not seen published.

API identifier
claude-opus-5
Context window
1MtokensSource
Maximum output
128KtokensSource
Input
$5.00per 1M tokensSource
Output
$25.00per 1M tokensSource
Cached input
$0.5per 1M tokensSource
Released
July 24, 2026Source
License
Proprietary

Availability Generally available on the Claude API, Amazon Bedrock, Google Cloud, and Microsoft Foundry.

Record verified August 31, 2026

What the record says

Anthropic launched Claude Opus 5 on July 24, 2026. The official model overview lists the fixed API ID claude-opus-5, a 1M-token context window, 128K maximum output, and $5/$25 per 1M input/output tokens. Anthropic describes it as a step-change over Opus 4.8; no provider-published benchmark figure is recorded here without a specific official table. Adaptive thinking is on by default; disablement at xhigh or max effort returns a 400 error.

What benchr has documented it doing

Capabilities in the benchr ledger that name this model. Documented means a provider says it works and benchr recorded where. Verified means benchr ran it.

13 capabilities name this model. All 13 are officially supported by the provider; benchr has run 0 of them itself.

Which one to use

The rest of the family, with the two numbers that usually decide it. The current model is marked.

ModelsInput OutputContext window
Claude Haiku 4.5$1.00$5.00200K
Claude Sonnet 5$2.00$10.001M
Claude Sonnet 4.6$3.00$15.001M
Claude Opus 4.7$5.00$25.001M
Claude Opus 4.8$5.00$25.001M
Claude Opus 5 This page$5.00$25.001M
Claude Fable 5$10.00$50.001M
Claude Fable 5.1$10.00$50.001M

benchr's read

Worth it for

  • Complex agentic coding and enterprise work
  • 1M-context workloads that need 128K output
  • Teams migrating from Claude Opus 4.8 at the same base API price

Look elsewhere if

  • You need a provider-published benchmark comparison — none is recorded in the verified facts yet
  • You need the lowest-cost Claude tier — Sonnet and Haiku remain cheaper

Prices, limits, and identifiers above are provider facts. This section is benchr's judgement about them.

What benchr has written about it

Pieces that name this model, newest first. The ones written about this model come before the ones that mention it in passing.

What is not on this page

Stated rather than filled in.

  • No provider-published benchmark result is recorded for this model. benchr does not carry a figure across from a similar model or estimate one.
  • No first-token or tokens-per-second figure is recorded. benchr has not measured it and the provider does not publish one.
  • benchr has not run any capability on this model itself. Everything in the capability section is documentation, not a test result.

Where this leads