How much does Claude Sonnet 4.5 cost per 1M tokens?

Pricing for Claude Sonnet 4.5 is currently unpublished. Check back daily — ModelPriceLab tracks every change.

Who provides Claude Sonnet 4.5?

Claude Sonnet 4.5 is provided by Anthropic. ModelPriceLab also tracks third-party platforms that resell or proxy this model.

Prices are re-verified daily from official sources. The data on this page is taken from the latest crawl run.

Anthropic Claude Sonnet 4.5 Pricing — Latest API Costs & Updates

Anthropic

Verified daily across official and reseller platforms. Compare cost per 1M tokens, context window, and recent API changes.

Input / 1M tokens

Output / 1M tokens

$15.00

Context window

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Same model, different platforms. Cached input prices apply when supported.

Platform	Region	Input / 1M	Output / 1M	Cached input	Context
openrouter	global	-	$15.00	$0.30	—

Track price changes over time. Data updated daily from official sources.

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Estimate monthly spend using your current token volume and cache ratio.

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Monthly Input (Millions)

Monthly Output (Millions)

Cache Hit Ratio20%

Percentage of input tokens that match cached context.

Monthly cost comparison

No comparison data available.

How much does Claude Sonnet 4.5 cost per 1M tokens?: Pricing for Claude Sonnet 4.5 is currently unpublished. Check back daily — ModelPriceLab tracks every change.
Who provides Claude Sonnet 4.5?: Claude Sonnet 4.5 is provided by Anthropic. ModelPriceLab also tracks third-party platforms that resell or proxy this model.
When was Claude Sonnet 4.5's pricing last verified?: Prices are re-verified daily from official sources. The data on this page is taken from the latest crawl run.

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