LLM API cost calculator
Your monthly API bill across major models and Pareto, from a pasted prompt or a workload estimate.
AI gateway fee calculator
What gateway fees cost per year at your monthly spend, flat versus percentage.
Claude tokenizer tax
What Claude output costs per word, from characters per output token measured on six Claude models.
LLM API price index
List prices for 57 models from 7 providers, each linked to the provider’s own pricing page, with a dated change feed.
Prompt-caching cost calculator
What a long, cached prompt costs per month across 57 models, with cache hits, cache writes and long-context rates.
