Claude Sonnet 5 arrives as Anthropic's lower-cost agent workhorse
Anthropic kept Claude Sonnet 5 at $2 per million input tokens and $10 per million output tokens instead of applying the previously scheduled 1 September increase to $3 and $15. The lower launch price is now the standard price.
Why it matters: A temporary workhorse-model discount became a durable price. That changes routing and agent-cost assumptions for teams that had budgeted for the announced increase.