Free browser tool that counts prompt tokens and compares live API pricing across 300+ LLMs for developers estimating costs.
What it does
LLM Token Counter is a free web calculator that estimates how many tokens a prompt will use and shows the resulting cost across hundreds of AI models and providers side by side. Users can paste a prompt or enter raw token/word/character counts to get instant pricing comparisons.
Core features
Paste-a-prompt token counting using a reference tokenizer
Cost estimate broken out by input and output tokens
Comparison table spanning 300+ models from many providers
Alternative input modes: tokens, words, or characters
Regularly updated pricing data
Downloadable guide on reducing token usage
Best for
→Estimating API cost before sending a large prompt
→Comparing pricing across LLM providers for a given task
→Choosing the cheapest model that fits a workload
→Tracking how model pricing changes over time
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.