Claude Sonnet 5 is available everywhere today at an introductory price of $2 per million input tokens and $10 per million output tokens through August 31, 2026. It then moves to standard pricing at $3 per million input tokens and $15 per million output tokens.² We’ve increased rate limits across Chat, Cowork, Claude Code, and the Claude Platform³ to accommodate the higher token usage of higher effort levels; users can select whichever level makes sense for their particular project.