Claude has made Claude Sonnet 5’s introductory pricing permanent, keeping the model at $2 per million input tokens and $10 per million output tokens. The rates were introduced in June and had been scheduled to remain in place through August 31, 2026.
Claude keeps Sonnet 5 at its launch price
Claude describes Sonnet 5 as its “most agentic Sonnet yet,” claiming that it can make plans, use browsers and terminals, and operate autonomously at a level that previously required larger models.
The company presented the decision as a pricing change, although the price itself is not changing. Instead, the introductory rate that was due to expire at the end of August will now remain available indefinitely.
Source: Claude on X