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AI Infrastructure · Top 10

The 10 Best AI Tools for Summarizing Books in 2027

By Kory White · Updated Oct 2026 · 4 min read
Google NotebookLM
Direct answer

Google NotebookLM is the best AI tool for summarizing books: it is free and works from your own copy, up to 500,000 words per source. Anthropic Claude is #2 and Google Gemini is #3; Blinkist leads the ready-made summary apps with 9,000+ titles.

At a glance

#PickPriceBest for
1Google NotebookLMFree with a Google Account (Gemini Notebook is in the Free plan)Summarizing a book you own and asking questions answered only from it
2Anthropic ClaudeFree plan; Pro $20 a month billed monthly, or $17 a month billed annuallyLong, careful chapter-by-chapter summaries of an EPUB or PDF
3Google GeminiFree; Google AI Plus $4.99 a month; Google AI Pro $19.99 a monthVery long books and Google Drive users
4OpenAI ChatGPTFree; Go $8 a month; Plus $20 a monthPeople who already use ChatGPT for everything else
5BlinkistPremium $99.99 a year ($79.99 intro offer); PRO $174.99 a year ($139.99 intro offer)A big library of short nonfiction summaries to read or hear
6Shortform$24 a month billed monthly, or $16.42 a month billed annuallyDeeper guides that go past a 15-minute skim
7HeadwayApp Store in-app purchases listed from $12.99 to $89.99Daily habit-building with short summaries and streaks
8getAbstractPro Monthly $29.90 a month; Pro Yearly $299 a yearBusiness and professional reading
9Scholarcy$9.99 a month, or $90 a yearStudents summarizing textbook chapters and papers
10BookeyBookey Premium (1 month) $12.99; Lifetime $199.99 (App Store)Mind maps alongside audio and text summaries

Pick by what you want

Best overall
Google NotebookLM
Best for long EPUB files
Anthropic Claude
Best summary library
Blinkist
Best for business books
getAbstract
Best for students
Scholarcy

The ranking

1

Google NotebookLM

Google NotebookLM
Answrs VerdictThe best free tool for summarizing your own books.
Price: Free with a Google Account (Gemini Notebook is in the Free plan)Sources per notebook: 50 on the free Standard plan, 300 on ProSize per source: 500,000 words or up to 200MB per uploadName: NotebookLM is now Gemini Notebook as of July 2026

NotebookLM, now called Gemini Notebook, is free with a Google Account. It takes up to 50 sources per notebook on the free plan and 500,000 words per source, and it answers only from what you add.

Go ifSummarizing a book you own and asking questions answered only from it
Skip ifYou want ready-made summaries of books you have not got
Why #1 over #2: It answers only from your own sources and is free, while Claude Pro costs $20 a month.
2

Anthropic Claude

Anthropic Claude
Answrs VerdictThe strongest chat assistant for long book files.
Price: Free plan; Pro $20 a month billed monthly, or $17 a month billed annuallyFile types: PDF, DOCX, TXT, EPUB and moreFiles per chat: Up to 20Context window: Up to 1M tokens, varies by model

Claude reads PDF, DOCX, TXT and EPUB files, up to 20 per chat, with a context window of up to 1M tokens depending on the model. Pro is $20 a month, or $17 a month billed annually.

Go ifLong, careful chapter-by-chapter summaries of an EPUB or PDF
Skip ifYou only want to listen to pre-written summaries
Why #2 over #3: It reads EPUB files and up to 20 files per chat, while Gemini lists its 1,500-page upload limit only on Google AI Pro.
3

Google Gemini

Google Gemini
Answrs VerdictBig upload limits on the paid plan.
Price: Free; Google AI Plus $4.99 a month; Google AI Pro $19.99 a monthFile uploads: Up to 1,500 pages (Google AI Pro)Context window: 1M tokens (Google AI Pro)

Gemini is free, with Google AI Plus at $4.99 a month and Google AI Pro at $19.99 a month. Google AI Pro takes up to 1,500 pages of uploads and a 1M token context window.

Go ifVery long books and Google Drive users
Skip ifYou do not use Google services
Why #3 over #4: Google AI Pro, at $19.99 a month, takes up to 1,500 pages of uploads.
4

OpenAI ChatGPT

OpenAI ChatGPT
Answrs VerdictThe familiar all-rounder.
Price: Free; Go $8 a month; Plus $20 a monthDocument size: 512 MB per fileText per file: Capped at 2 million tokensFree plan uploads: 3 file uploads per day

ChatGPT is free, with Go at $8 a month and Plus at $20 a month. Documents can be 512 MB, capped at 2 million tokens per file, but the free plan allows 3 file uploads per day.

Go ifPeople who already use ChatGPT for everything else
Skip ifYou need many uploads on the free plan
Why #4 over #5: It can summarize any book file you upload, which Blinkist Premium does not do.
5

Blinkist

Blinkist
Answrs VerdictThe best-known summary library.
Price: Premium $99.99 a year ($79.99 intro offer); PRO $174.99 a year ($139.99 intro offer)Library: 9,000+ book and podcast summariesTime per title: Read and listen in 15 minAI tool: Blinkist AI on PRO summarizes videos, podcasts, docs and articles

Blinkist has 9,000+ book and podcast summaries you can read or hear in 15 min. Premium is $99.99 a year ($79.99 intro offer); PRO adds Blinkist AI for $174.99 a year.

Go ifA big library of short nonfiction summaries to read or hear
Skip ifYou want to summarize your own files on the cheaper plan
Why #5 over #6: Its yearly Premium plan, at $99.99, is the cheaper way into a big library than Shortform at $24 a month.
6

Shortform

Shortform
Answrs VerdictThe in-depth book guide.
Price: $24 a month billed monthly, or $16.42 a month billed annuallyLibrary: 12,000+ books coveredExtra guides: 1,000+ article and topic guides

Shortform covers 12,000+ books plus 1,000+ article and topic guides, for $24 a month or $16.42 a month billed annually.

Go ifDeeper guides that go past a 15-minute skim
Skip ifYou want the lowest monthly price
Why #6 over #7: Its 12,000+ books beat Headway’s 1,700+ summaries.
7

Headway

Headway
Answrs VerdictThe habit-building summary app.
Price: App Store in-app purchases listed from $12.99 to $89.99Library: 1,700+ summariesTime per title: 15-minute summaries to read or listenWritten by: A team of writers, editors and sound actors

Headway has 1,700+ summaries, each 15 minutes to read or hear, made by a team of writers, editors and sound actors. App Store purchases are listed from $12.99 to $89.99.

Go ifDaily habit-building with short summaries and streaks
Skip ifYou want the biggest library
Why #7 over #8: Its App Store prices start at $12.99, below getAbstract’s $29.90 a month.
8

getAbstract

getAbstract
Answrs VerdictThe business-book specialist.
Price: Pro Monthly $29.90 a month; Pro Yearly $299 a yearLibrary: 27,000+ summaries on ProPublishers: Licensed from 850+ publishersSince: Summarizing since 1999

getAbstract lists 27,000+ summaries on Pro, licensed from 850+ publishers, and has been summarizing since 1999. Pro Monthly is $29.90 and Pro Yearly is $299.

Go ifBusiness and professional reading
Skip ifYou read mostly self-help on a budget
Why #8 over #9: Its 27,000+ summaries are ready to read; Scholarcy only summarizes files you bring.
9

Scholarcy

Scholarcy
Answrs VerdictThe study-focused summarizer.
Price: $9.99 a month, or $90 a yearFree plan: Limit of 10 summariesFree trial: 7 daysWorks on: Articles, book chapters, PDFs and Word docs

Scholarcy summarizes articles, book chapters, PDFs and Word docs for $9.99 a month or $90 a year, with a 7-day free trial and 10 free summaries.

Go ifStudents summarizing textbook chapters and papers
Skip ifYou want audio summaries of bestsellers
Why #9 over #10: It summarizes your own chapters, which Bookey does not.
10

Bookey

Bookey
Answrs VerdictThe mind-map summary app.
Price: Bookey Premium (1 month) $12.99; Lifetime $199.99 (App Store)Format: 30-minute audio, text and mind map summaries

Bookey offers 30-minute audio, text and mind map summaries. On the App Store, Bookey Premium (1 month) is $12.99 and Lifetime is $199.99.

Go ifMind maps alongside audio and text summaries
Skip ifYou want a summary of your own file

How we ranked these

We ranked tools that can summarize any book you give them first, then the ready-made summary libraries, using each maker’s own published limits and prices. Facts are taken from each maker's own published information; check the official site before you buy.

Questions people ask

What is the best AI for summarizing books?

Google NotebookLM (now Gemini Notebook): it is free with a Google Account and answers only from the sources you add, up to 500,000 words per source.

Can Claude summarize an EPUB?

Yes. Claude accepts PDF, DOCX, TXT and EPUB files, up to 20 files per chat.

Which book summary app has the biggest library?

Of the apps here, getAbstract lists 27,000+ summaries on Pro, Shortform 12,000+ books and Blinkist 9,000+ book and podcast summaries.

Is there a free AI book summarizer?

NotebookLM, Claude, Gemini and ChatGPT all have free plans; ChatGPT Free allows 3 file uploads per day.

Monthly price, billed monthly (as published) at a glance

Scholarcy9.99 USD
Bookey12.99 USD
Google Gemini19.99 USD
Anthropic Claude20 USD
OpenAI ChatGPT20 USD
Shortform24 USD
getAbstract29.9 USD
Monthly price, billed monthly (as published), as published by each maker. Picks without a published figure are left off.

Official sites

Sources

Prices, specs and availability change; confirm on the official site before you buy.