Guides
Guides and explainers from TokenCost Lab.
How Much Does an AI Chatbot Cost to Run? GPT vs Claude vs Gemini
A worked example of the monthly API bill for a customer-support chatbot on OpenAI, Anthropic and Google, and the three levers that cut it the most.
Read guide → November 5, 2026Prompt Caching Explained: Cut Your LLM Input Costs by Up to 90%
What prompt caching is, how OpenAI, Anthropic and Google price cached tokens, and how to structure prompts so the cache actually hits.
Read guide →