Claude Sonnet 5.5 price history
Anthropic · mid tier · context 1M. Daily API prices per million tokens, tracked since Oct 2, 2026.
Every price change we recorded
No price change recorded yet. The price has been stable since we started tracking Claude Sonnet 5.5.
Get told the day it changes
Price-change alerts are free by e-mail on the front page. Developers can pull the data from the free history API (last 30 days; API Pro adds full history and webhooks).
Questions
What does Claude Sonnet 5.5 cost right now?
Claude Sonnet 5.5 by Anthropic costs $2 per million input tokens and $10 per million output tokens, as recorded by LLM Price Watch today.
Has the Claude Sonnet 5.5 price changed?
No. We have not recorded a price change for Claude Sonnet 5.5 since we started tracking it.
Where does this price history come from?
LLM Price Watch records the listed API price of every tracked model once a day. The raw daily data is available free for the last 30 days at api.llmpricewatch.com/v1/history/claude-sonnet-5-5.