Token Calculator
Count tokens for GPT, Claude, Gemini, Llama, and other top models. Estimate costs with your current rates.
Tokens
0
Characters
0
Input Cost
—
Output Cost
—
Context Window Usage0.0% of 128,000
GPT-5 Details
Provider
OpenAI
Context tier
Extended
Tokenizer estimate
~4 chars per token
About Token Counting
This calculator provides estimates based on character patterns. Actual token counts and costs depend on your model version, region, and pricing tier.
- • OpenAI models use tiktoken tokenization
- • Claude uses a custom BPE tokenizer
- • Average English text: ~4 characters per token
- • Enter your current rates to estimate cost
- • Code and special characters may use more tokens