How Many Words for Coders counts exact tokens for GPT-4o / GPT-4o mini and GPT-3.5 Turbo — no sign-up, no upload, nothing leaves your browser. Paste code, prompts, or config to see tokens, characters, words, tokens per word, and characters per token, plus how much of the model's context window you're using and an estimated input cost. Select any part of your text to count just that selection.