Free AI Tool

AI Token Counter

Calculate token usage for ChatGPT, GPT-4, Claude, and other AI models in real-time. Optimize your prompts, estimate API costs, and stay within context limits with our free token calculator.

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Why count tokens?
Understanding token usage is crucial for working with AI APIs

• Manage and predict API costs accurately

• Stay within model context window limits

• Optimize prompts for better efficiency

• Debug token-related errors

Token Counter Tool
Paste your text below to count tokens for different AI models and estimate costs

Why Use Our Token Counter?

Everything you need to manage token usage across different AI models

Real-time Token Counting

Get instant token counts as you type or paste your text.

Multiple AI Models

Support for GPT-4, GPT-3.5, Claude, and other popular language models.

API Cost Estimation

Estimate API costs based on current pricing for different models.

Prompt Optimization

Optimize your prompts to reduce token usage and save costs.

Fast & Accurate

Powered by industry-standard tokenizers for accurate counting.

Privacy First

All processing happens in your browser. Your data never leaves your device.

How Token Counting Works

Understanding the tokenization process for AI language models

1

Text Input

Paste or type your text, code, or prompt into the token counter. The tool accepts any type of text content.

2

Tokenization

The text is processed using the same tokenizer as your selected AI model (GPT-4, Claude, etc.) to split it into tokens.

3

Results

Get instant token count, character count, estimated API cost, and optimization suggestions for your text.

Frequently Asked Questions

Everything you need to know about token counting for AI models

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Your on-demand copilot built for data scientists. Automate routine notebook tasks, explore data faster, and ship insights without leaving Jupyter.

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100% Free

No registration, no limits, no hidden costs. Use our token counter as much as you need for personal or commercial projects.

Privacy Protected

All token counting happens in your browser. Your sensitive prompts and data never leave your device or get stored anywhere.

Always Accurate

We use official tokenization libraries to ensure 100% accuracy with the actual token counts used by AI APIs.