AI Token Counter
Paste your prompt to estimate token count and API costs across GPT-5.5, Claude Opus 4.7, Gemini 3.5 Flash, DeepSeek V4, and more. Add custom models.
Understanding AI Tokens
Large language models process text in chunks called tokens. For English, the average is about 4 characters per token. Chinese, Japanese, and Korean characters typically consume 1-2 tokens each.
Select multiple models to compare costs side by side, or add your own custom model with specific pricing.