GPT TokenizerFree Online
Tokenize text for GPT models with real-time token counting, cost estimation, and token visualization.
Cost breakdown (per request)
Advanced GPT Tokenizer Features
Our AI-powered gpt tokenizer helps you write with confidence and clarity.
Accurate Tokenization
Get precise token counts using OpenAI's BPE tokenizer compatible with GPT-3.5, GPT-4, and other models.
Real-time Counting
See token counts update instantly as you type, with support for multiple GPT model variants.
Cost Estimation
Estimate API costs for input and output tokens based on current OpenAI pricing.
How to Use the GPT Tokenizer?
Tokenize text for GPT models with real-time counting and cost estimation in three simple steps.
Choose the GPT model you want to tokenize for: GPT-3.5 Turbo, GPT-4, GPT-4 Turbo, GPT-4o, or GPT-4o Mini.
Paste or type your text into the input area. Tokenization happens in real-time as you type.
See token count, cost estimates, and optionally view the token array. Test decoding to verify tokenization.
Why Choose Our GPT Tokenizer?
Accurate Tokenization
Uses OpenAI's BPE tokenizer compatible with GPT-3.5, GPT-4, and other models
Real-time Counting
Get instant token counts as you type, with support for multiple GPT model variants
Cost Estimation
Estimate API costs for input and output tokens based on current OpenAI pricing
Free Forever
100% free tool with no limits or registration required