Kimi Review: Throw a Whole Textbook at It

Tools Updated 2026-11-04 · 2 min read · #chatbot #long-context #documents

What it is

Kimi (by the Chinese lab Moonshot AI) became famous for one thing: swallowing enormous documents — textbooks, papers, contracts, slide decks — and answering questions about them with references back to the source.

Free tier

Chat is free for everyday use with generous-enough limits for studying and reading. Like everyone else, they change limits often — official page wins.

Getting started (3 steps)

Open kimi.com (formerly moonshot chat), sign up.
Click the 📎 attach button and drop in a PDF/Word/PPT — several files at once is fine.
Ask questions and make it cite pages, then spot-check the pages it quotes. A summary is a map, not the territory.

Best use

Scenario	Say this
Pre-read a chapter	“Compress this chapter into 5 concepts + 1 self-test question each”
Paper you can’t face	“Explain what this paper did in high-school language, then the method”
Exam drill	“Turn these slides into 15 multiple-choice questions, answers at the end”

Honest weaknesses

A long-context answer is still a summary: it skims like a human, and sometimes skims wrong. Always cite-check.
Everything is a document first: for quick casual questions other assistants feel snappier.

FAQ

How many pages is “long”?

Hundreds of pages is normal territory for it now — but “it fits” and “it read every line carefully” are different sentences. Spot-check.

Sensitive files — safe to upload?

The same rule as any cloud AI: think once before uploading rosters, IDs, or anything with other people’s personal data.

Can I use it in English?

Yes, its English is good; its training/examples skew Chinese, so some flourishes read that way.

📌 Summarised from official docs and hands-on samples. Product features and pricing change often — official site wins.

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