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Claude 4.5 Sonnet

AI/ML API

Claude 4.5 Sonnet by AI/ML API costs $4.13 per 1M input tokens and $20.63 per 1M output tokens, with a 200K-token context window.

Pricing

Input (per 1M tokens)
$4.13
Output (per 1M tokens)
$20.63
Cached input (per 1M)
$0.41

Specifications

Provider
AI/ML API
Context window
200K tokens
Parameters
—
Released
Sep 2025
Open weights
No
Frontier model
No

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FAQ

Pricing is per 1M tokens (USD); confirm with the provider before production use.