Small AI tools that answer real questions.
No chatbots, no hype. Just the utilities people reach for when they're actually working with AI: how many tokens is this, what will it cost, which model fits — answered with numbers you can check.
AI Token Counter & Cost EstimatorPaste text → tokens, context used, and the API cost on GPT, Claude or Gemini.
Model Context Windows & PricesEvery major model's window and list price in one table, kept current.
Guides & worked examples1000 words in tokens, book-length costs, and 8 ways to use fewer tokens.
Why this site exists
Most AI tools answer questions nobody asked. The ones people actually Google are boring and durable: how many tokens, how much does it cost, what fits in the window. Those questions don't trend and don't crash — they just keep getting asked, month after month. This site is built to answer them well, with arithmetic shown, sources named, and no sign-up wall in front of the answer.
Estimates are labeled as estimates; prices are indicative list prices checked 2026-11-04. Your text never leaves your browser on the calculator pages.