Claude Opus 5

Anthropic's new top model, available today on all paid Claude plans and the API at the same price as Opus 4.8.

Details

Costs $5 per million input tokens and $25 per million output tokens, the same as Opus 4.8
Replaces Opus 4.8 as the default model on Claude Max and is the strongest option on Claude Pro
Scores within 0.5% of Fable 5 on the Frontier-Bench and CursorBench software engineering evaluations at half the cost per task
Beats Fable 5 on OSWorld 2.0, a computer-use test, at roughly a third of the cost
Runs in Fast mode at 2.5x the default speed for double the price
Available on Claude.ai, Claude Code, Claude Cowork, and the Claude API
Stronger than Opus 4.8 on cybersecurity tasks, with safeguards meant to allow vulnerability fixing while blocking exploit development

Best for

Long agentic coding runs and multi-step analysis where you want the model to check its own work instead of handing back a first pass.

When to use it

You are on Claude Pro or Max and want the strongest model available, or you are paying Fable 5 rates on the API for work Opus 5 handles at half the cost per task.

Who benefits

General Claude users + teams running Claude Code or Cowork, plus API users watching per-task cost.

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Details

Best for

When to use it

Who benefits

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