Token Counter
Count characters and estimate tokens for your AI prompts across popular LLMs.
What is a token?
A token is a unit of text used by AI models to process input and output.
A token is not always a full word. It can be part of a word, punctuation, or whitespace.Reference
Rule of thumb:
- English: ~1 token ≈ 4 characters
- Other languages: token length may vary depending on structure
Disclaimer
The token counts shown on this page are estimates only and do not represent official token counts from OpenAI, Anthropic, or any other LLM provider.
Actual token usage may vary due to:
- Each model’s internal tokenizer
- Language and sentence structure
- Special characters, emojis, and formatting
- System prompts and additional metadata used by APIs
For production use, billing, or exact limits, always rely on the official token counters provided by the LLM APIs. By using this tool, you acknowledge that all results are provided for approximation purposes only.