Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Cost TrackingArea: what it touches
Internal ChangesKind: in v2.1.321,
What probably matters to youSection of the release
What
Claude Code's pricing table, used to estimate what a session costs, gains a tier named tier_8_40_cache_read_0_20. Prices are per million tokens, a token being a small chunk of text:
Input: 8
Output: 40
Cache write lasting 5 minutes: 10
Cache write lasting 1 hour: 16
Cache read: 0.2
Why
Cost estimates for a model priced at $8 input and $40 output would use this tier.
