Tech & Energy
LLM Token Cost Calculator
Estimate your OpenAI, Anthropic, Google, or open-source LLM bill. Input/output tokens are priced differently and the difference adds up fast.
Monthly cost
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- Per request
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FAQ
Why are input and output priced differently? +
Generation costs much more compute than reading. Output tokens require autoregressive sampling per token; input goes through one pass.
Caching savings? +
OpenAI and Anthropic offer prompt caching at 50-90% discount on cached tokens. Huge for RAG and conversation prefixes — not modeled here.