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by Anthropic

Anthropic Claude Sonnet Latest.

multimodal closed 1M ctx
Cheapest input
$3.0/M
on OpenRouter
Cheapest output
$15.0/M
on OpenRouter
Fastest
36 tok/s
on OpenRouter
Hosted equiv.
~$5.4/hr
@ 100 tok/s on OpenRouter

This model always redirects to the latest model in the Anthropic Claude Sonnet family.

Hosted API only

No self-host path — closed weights.

Anthropic Claude Sonnet Latest'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 $3.0 $15.0 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 35.6 1237 ms 4724 ms
FAQ

Frequently asked.

How do I run Anthropic Claude Sonnet Latest?
Anthropic Claude Sonnet Latest 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 Anthropic Claude Sonnet Latest?
Anthropic Claude Sonnet Latest is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Anthropic Claude Sonnet Latest?
API pricing starts at $3.0/M input tokens and $15.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Anthropic Claude Sonnet Latest open-source or proprietary?
Anthropic Claude Sonnet Latest is a proprietary model from Anthropic. Access is API-only — there are no public weights to download.