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AI Beginner Lab 2 of 6

Summarize Long Documents with an LLM API

Turn a long report into a short, faithful summary using map-reduce chunking so you never blow the context window.

By CareerByteCode
Problem statement

Documents are longer than a model's context window, and a single naive prompt either truncates the input or produces a shallow summary.

Why we need this realtime usecase

Summarizing chunk by chunk and then summarizing the summaries (map-reduce) keeps the whole document in scope and gives a faithful result.

When we need this realtime usecase

Use this for meeting transcripts, long PDFs, research papers, and support threads that must be condensed.

Prerequisites for the lab

Python and an LLM API key in an env var. A long text file to summarize.

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