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by Anthropic

Claude Opus 5.

multimodal closed 1M ctx
Cheapest input
$5.0/M
on OpenRouter
Cheapest output
$25.0/M
on OpenRouter
Hosted equiv.
~$9.0/hr
@ 100 tok/s on OpenRouter

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

Hosted API only

No self-host path — closed weights.

Claude Opus 5's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $5.0 $25.0 Launch ↗
FAQ

Frequently asked.

How do I run Claude Opus 5?
Claude Opus 5 is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access Claude Opus 5?
Claude Opus 5 is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Claude Opus 5?
API pricing starts at $5.0/M input tokens and $25.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Claude Opus 5 open-source or proprietary?
Claude Opus 5 is a proprietary model from Anthropic. Access is API-only — there are no public weights to download.