AI Tools
AI Token Counter
Paste a prompt into the editor, choose a model family, and count tokens instantly in the browser. This page is useful for prompt writing, API request planning, context budgeting, and comparing token usage before you send text to a model.
Count AI Prompt Tokens Online
Count AI prompt tokens online for free and compare token usage across model families before sending a request.
Why Use This AI Token Counter
- Measure prompt size with a model-aware tokenizer
- Compare token usage before you send an API request
- Use sample input for quick testing
- Copy or download the analysis result
Related AI Tools
Common Situations Where This Helps
- You want to check prompt size before sending an API request.
- A long system prompt needs quick token budgeting.
- You are comparing prompt variants and want the lighter one.
- You need a fast token count without opening a separate coding environment.
Which Tool Should You Choose?
AI Token Counter: Choose this when you need a token total plus prompt text metrics for a selected AI model family.
Word & Character Counter: Choose the basic counter when you only need words, characters, lines, or paragraphs and do not care about tokens.
Common Problems This Tool Solves
I am not sure whether my prompt is getting too large. Count tokens first so you can inspect the text size before using it in a workflow.
I want to compare prompt length across older and newer model families. Switch the model family selector and run the counter again to compare tokenizer groups.
I only have plain prompt text and need a quick token estimate I can trust more than a rough character rule. Use the tokenizer-backed counter to measure the prompt with the selected model family.
Related Guides
- What Is an AI Token and Why Does It Matter?
- How to Estimate Prompt Size Before Sending It to an AI Model
- Why the Same Prompt Has Different Token Counts Across Models
- How to Reduce Token Count Without Losing Meaning
- When to Use AI Token Counter vs AI Cost Estimator
- How to Format a Prompt Before Checking Token Count or Cost
Frequently Asked Questions
How do I count tokens in a prompt?
Paste your prompt into the input box, choose the model family, and run the counter to see the token total and related text metrics.
Does the token count change by model family?
Yes. Different model families can use different tokenizer encodings, so the same text may produce different token totals.
Are Gemini counts exact?
Gemini options on this page use a local estimator, so they should be treated as helpful estimates rather than exact API token counts.
Are open-model counts exact?
Open-model options on this page are estimated unless noted otherwise, so they are best used for rough budgeting and prompt comparisons.
Is this AI token counter free?
Yes. It is free to use in your browser.