AI Token Counter - Count GPT Tokens Online
Count GPT tokens instantly and estimate API costs for every major model. Free, private, no signup.
Tool Interface
How to use
- Paste your text into the box above - prompts, articles, code, anything.
- Select the AI model you plan to use (different models have different pricing).
- Click Count Tokens to see the exact token count using the real GPT tokenizer.
- Check the cost estimate to budget your API usage before you send the request.
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About This Tool
About This Tool
The Trencada AI Token Counter tells you exactly how many tokens your text uses with GPT models. Paste any prompt, article, or code snippet and get an instant token count using the real GPT tokenizer, plus a cost estimate for GPT-4o, GPT-4o mini, GPT-4 Turbo, GPT-3.5 Turbo, and o1. Everything runs in your browser. Your text never leaves your device.
Key Features
- Real GPT tokenizer for exact counts, not rough estimates
- Cost estimates for 5 major OpenAI models
- Character, word, and token counts side by side
- Characters-per-token ratio to gauge text efficiency
- 100 percent client-side processing for full privacy
- Automatic fallback estimation if the tokenizer library cannot load
How to Use
- Paste your text into the input box.
- Select the AI model you plan to use.
- Click Count Tokens for the exact count and cost estimate.
Why Count Tokens
AI APIs charge per token, and every model has a context limit. Knowing your token count before you send a request helps you stay inside limits, control costs, and split long documents the right way.
FAQ
What is a token? A token is the unit AI models use to process text. One token is roughly 4 characters of English, but the exact split depends on the content.
Is my text uploaded anywhere? No. All counting happens in your browser. Nothing is sent to any server.
Which models are supported? GPT-4o, GPT-4o mini, GPT-4 Turbo, GPT-3.5 Turbo, and o1, with per-model pricing.
How accurate is the count? When the tokenizer library loads, the count is exact. If it cannot load, the tool falls back to a clearly labeled estimate.