Local dataset estimator

LLM Token Calc icon LLM Token Calc

Measure datasets before you train.

Architecture, Design and Development by Franz Ayestaran
Enhanced Pair Programming with OpenAI GPT.

Upload a text file, JSON file, or JSONL file to estimate token volume, multiply it across training epochs, and compare that token count against a built-in pricing catalog for OpenAI, Anthropic, and similar APIs.

Results will appear here after you upload a file.

Edit vendor rates

Update input and output prices per 1M tokens. Server mode saves to the local catalog file. Browser mode stores overrides in local storage.

Editing prices in USD per 1M tokens.