Your most expensive prompts, reviewed by the AI you already use. Private by default: nothing leaves this machine until you click Get tips, and then only through your own local Claude Code, Codex or Copilot.
Every model reply reports how many tokens of each type it used. Tokenmeter multiplies each type by that model's list price and adds them up:
cost = cached reads × read price + uncached input × input price + cache writes × write price + output × output price, all per million tokens
The types are priced very differently, so the token total alone does not predict cost. On Claude a cached read is about 2% of a fresh token, and output is 2 to 5 times a fresh token. Claude Code writes its cache with the 1-hour rate. OpenAI models do not charge for cache writes, and bill higher rates for any turn with more than 272K input tokens; Tokenmeter applies that per turn. The rates in use right now:
These are API list prices from pricing.json. If you are on a subscription you pay the plan price instead; the Spend tile shows that first and this API-equivalent figure below it.
Cache reads are cheap, cache writes and output are not. Thinking tokens are included in output.