Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Cost TrackingArea: what it touches
Internal ChangesKind: in v2.1.239,
Internal ChangesSection of the release
What
Per-request cost is no longer a flat sum. Token-based cost is multiplied by a per-request factor first, and the web search request fee is added afterwards, outside the multiplier.
Evidence
web_search_requests
Strings lifted out of the shipped bundle, so the claim above can be checked against them.