Free AI API tools
No key and no account needed.
LLM cost calculator
One request and a month of them on any chat model: input, cached input and output tokens at the developer’s list price and at ours.
AI API bill rewriter
Drop a usage export from OpenAI or Anthropic and see the same usage priced here. The file is read in your browser.
Model comparisons
Two models side by side: input and output per million tokens, each next to its developer’s list price.
LLM API price index
Every chat model with a developer list price, our price next to it, as a table, JSON or CSV.
Daily real-model check
The same test prompt sent to every model each day. A model always counts that prompt the same way; a swapped one would not.
Statement and receipt verifier
Check that a usage statement or a response receipt is genuine and unchanged: an Ed25519 signature, checked in your browser.
Free uncensored AI chat
A chat panel on the uncensored builds with SillyTavern character cards, no sign-up, a few free turns a day.