Candil.Cost (Candil v2.1.0)

Cost estimation for LLM API usage.

Prices are stored as USD per 1M tokens for (input, output). Only models with well-known pricing are listed; unknown models return :unknown.

Example

iex> Candil.Cost.estimate("gpt-4o", 1000, 500)
{:ok, 0.00775}

iex> Candil.Cost.estimate("unknown-model", 1000, 500)
:unknown

known_models()

@spec estimate(String.t(), non_neg_integer(), non_neg_integer()) ::
  {:ok, float()} | :unknown

@spec known_models() :: [String.t()]