pub fn estimate_cost(
model: &str,
input_tokens: u64,
output_tokens: u64,
cache_read_tokens: u64,
) -> Option<f64>Expand description
Estimate USD cost for a provider/model request from the global pricing
catalog. Returns None when the model id is malformed, the model is absent
from the catalog, or the model has no pricing — callers treat None as
“cost unknown” (no error).