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AiTechWorlds
AiTechWorlds
Estimate token count and API cost for ChatGPT, Claude, and Gemini prompts — live, client-side.
Drag & drop a file, upload, or paste directly
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The Prompt Token Counter estimates how many tokens your text will consume when sent to AI APIs like OpenAI GPT-4o, Anthropic Claude, or Google Gemini. Token counting uses a character-based approximation (roughly 4 characters per token for English text) that matches the industry standard heuristic. It also calculates the estimated API cost based on each model's published pricing, helping you optimize prompts before incurring charges.
Select a model
Choose from GPT-4o, GPT-3.5 Turbo, Claude 3.5 Sonnet, Claude 3 Opus, or Gemini 1.5 Pro.
Type or paste your prompt
Enter your prompt text in the textarea — token count updates live as you type.
Review the stats
See estimated tokens, characters, words, and the estimated input + output API cost.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.