Claude Opus 5

Anthropic llm

Successor to Opus 4.8 adding a low, medium and high effort control, positioned close to Claude Fable 5's frontier intelligence at roughly half the price.

overall ⌄

81.7

2 of 93 ranked

price · $/M tokens

5 / 25

in / out, as of 2026-07-25

to run it yourself ⌄

API only

no weights to run

Claude ↗ Blog ↗

Benchmarks

What its maker published, and what anyone else measured. Every figure links the document it came from.

benchmark	published	measured
GPQA	—	93.7
SWE-bench	96	—
SWE-bench Pro	79.2	—
HLE	56.3	52.6
BrowseComp	90.8	—

Cheaper, and at least as good

Nothing is both cheaper and ranked as high. This model is on the value frontier — whatever you pay for it, you are paying for something.

Lineage

No recorded lineage — root or standalone model.

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Metadata

org	Anthropic
released	2026-07-24
license	proprietary