🧮 LLM Token Counter & API Cost Estimator

Estimate prompt token count and compare monthly API costs across flagship and flash AI models in real time.

Input Payload / Expression:

Generated Output (Click to Copy):

📖 Developer Guide & Best Practices

Client-side browser developer utilities like JSON/TypeScript/Cron/Token calculators enhance engineering productivity by enabling real-time, on-the-fly testing and validation of code snippets, reducing the need for multiple round trips to the server. They streamline development workflows, allowing developers to iterate faster and debug more efficiently. Additionally, these tools help maintain data privacy by keeping sensitive information on the client-side, minimizing the risk of data breaches during transmission. By leveraging these utilities, developers can create more secure and efficient web applications.

❓ Frequently Asked Questions (FAQ)

Q: How is token count estimated from characters?

In English, 1 token averages ~4 characters or 0.75 words. Our estimator uses a calibrated 3.8 chars/token ratio.

Q: How can I reduce my LLM API bill to $0?

Use free-tier high-speed endpoints like Gemini Flash, Zhipu GLM-4-Flash, or local reverse proxy pools for high-volume tasks.