Token Calculator
Count tokens for GPT-4, Claude, and Llama models. Estimate API costs and optimize your prompts.
Tokens
0
Characters
0
Input Cost
$0.000000
Output Cost
$0.000000
Context Window Usage0.0% of 128,000
GPT-4o Pricing
Provider
OpenAI
Input (per 1M tokens)
$2.50
Output (per 1M tokens)
$10.00
About Token Counting
This calculator provides estimates based on character patterns. Actual token counts may vary slightly based on the model's specific tokenizer.
- • OpenAI models use tiktoken (cl100k_base for GPT-4)
- • Claude uses a custom BPE tokenizer
- • Average English text: ~4 characters per token
- • Code and special characters may use more tokens