Anthropic changed the price it lists for Claude Sonnet 5.5 The best combination of speed and intelligence. It said "$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.20 / MTok" and it now says "$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.10 / MTok".

AnthropicPRICINGCHANGEDWED OCT 7, 21:46

The line, as the page carries it

-Claude Sonnet 5.5 The best combination of speed and intelligence$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.20 / MTok
+Claude Sonnet 5.5 The best combination of speed and intelligence$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.10 / MTok

The record

DOCUMENThttps://platform.claude.com/docs/en/about-claude/pricing
SOURCEanthropic-pricing
ROWClaude Sonnet 5.5 The best combination of speed and intelligence
OPERATIONchanged
BEFORE$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.20 / MTok
AFTER$2 / MTok | $10 / MTok | $2.50 / MTok | $4 / MTok | $0.10 / MTok
READ AT2026-10-07T21:46:40.287Z
SIGNALSprice, modelId

What went out

    When a lab changes a document

    The engine refetches every registered document on a schedule and files the line that moved. Model cards, system cards, pricing pages, API changelogs and deprecation notices all change without an announcement. Leave an address and Context Window writes when one does.