AnalysisDevelopersSeptember 26, 2026

Claude blog breaks down what a task costs on Opus 5.5

Read original source →claude.dev

Opus 5.5 API list prices are $4 per million input tokens, $20 per million output tokens and $0.20 per million cache reads. Output tokens — including thinking — bill at 5x the input price, and every turn resends the conversation so far.

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