What is PromptCost.org?
PromptCost.org is a free professional utility tool designed to help developers, AI researchers, and content creators manage their API budgets effectively. As the AI landscape evolves, pricing structures for Large Language Models (LLMs) change almost daily. Our mission is to provide transparency.
Why Calculate Tokens?
Tokens are the core units used by models like GPT-4 and Claude to process information. Typically, 1,000 tokens equal about 750 words. By calculating tokens before sending API requests, you can avoid "billing shock" and optimize your costs by choosing the right model for your task.
Live Price Syncing
Our data is fetched live via the OpenRouter API, meaning you always see the latest prices for over 200 models including OpenAI, Anthropic, Meta (Llama), and Google DeepMind.