Anthropic announces Claude Sonnet 5's introductory pricing of $2/$10 per million tokens will be permanent, dropping the August 31 expiration.
Concluded·following since 10 Aug 2026·Day 1·2 sources
Anthropic makes Claude Sonnet 5's $2/$10 per million token pricing permanent
The gist
Developers and organizations using Claude Sonnet 5 via the API now have pricing certainty they did not have under the temporary introductory structure. The price point stays at its launch level rather than rising after August 31.
The full picture
Anthropic has made Claude Sonnet 5's introductory pricing permanent. The model's launch price of $2 per million input tokens and $10 per million output tokens, originally set to expire on August 31, will now remain unchanged indefinitely. Claude Sonnet 5 launched in June. Anthropic describes it as capable of making plans, using tools like browsers and terminals, and running autonomously at a level that previously required larger and more expensive models.
How it developed
Sources
The Neuron
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