input_kchars, US dollars per 1,000 characters of input text. Shown per 1M characters, the unit vendors quote. Source of truth: prices/providers/openai.yml.
Billed per audio token
These models bill audio as tokens rather than by the character, so they are not comparable to the table above.
What
verified, imported, and seed mean is on How Fresh?. A rate that looks wrong is worth reporting.