Token Counter
Estimate token count, context usage, and cost for Claude, GPT-4, and other models.
0
tokens (estimated)
Characters0
Words0
Lines0
Context Window0.0%
0 / 200,000 tokens
Estimated Cost$0.000000
Input: $5/1M tokens
Token Tips
What are tokens?
Tokens are pieces of text that AI models process. A token is roughly 4 characters or ¾ of a word. “Hello world” is about 2 tokens.
Context Window
The context window is the maximum tokens a model can process at once. Claude Sonnet 4.5 supports 200K tokens (~150K words).
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