AI Token Calculator is a free browser tool that estimates token counts and API costs for a piece of text across GPT, Claude, Gemini, DeepSeek, Grok, and Perplexity side by side.
It answers a genuinely practical question before you build anything with an AI API: how much will this prompt or document actually cost across different providers, compared side by side instead of checking each pricing page separately.
Developers and product people planning around API usage limits or budget before committing to a model provider; not useful if you only use AI tools through their consumer chat interfaces.
Completely free, runs entirely in the browser with nothing sent to a server.
Paste a prompt and see the estimated token count and API cost across GPT, Claude, Gemini, DeepSeek, Grok, and Perplexity, so you can plan around limits and budget.
