How to Count Gemini Tokens Locally
✨ Overview
This article explores how Gemini tokenizes data and demonstrates how to count or estimate tokens locally. You'll learn how to use the local tokenizer to estimate text token counts offline, understand the tokenization math for multimodal inputs (images, audio, video, PDFs), and see how to retrieve precise token usage metadata from API responses for accurate tracking and billing.
ℹ️ The complete source code is available in this notebook (including all setup details and future updates) under the Apache 2.0 license. You can also directly open the notebook in Colab. This article reproduces all the results generated by a click on “Run all”.
⚙️ Setup
🐍 Google Gen AI Python SDK
To call the Gemini API, we'll use the Google Gen AI Python SDK. The Gemini API provides a count_tokens method, and the SDK offers an experimental implementation of a LocalTokenizer class.
Make sure you have a...
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