Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
PricingArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What
Per-model rates are now flat objects, including a 5 in / 25 out / 0.5 cache-read tier and a 30 / 150 tier. The 1M-context flags on Sonnet 4.0, 4.5, 4.6 and Opus 4.6 are unchanged in value; only their formatting moved.
Evidence
promptCacheWrite1hTokens
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
