Alternatives · Search & Research

NotebookLM alternatives

The closest alternatives to NotebookLM are Microsoft Copilot, ChatPDF and SciSpace, which also cover summarizing long text and researching a topic. 13 of the 15 listed here can be used for free, including Microsoft Copilot and ChatPDF. The lowest paid plan starts at $4 per month (Khanmigo).

Alternatives
15
Free options
13
Updated
Nov 2026

Closest first: ordered by how many of NotebookLM's tasks each tool shares, then by popularity.

  1. 1

    Microsoft CopilotVerifiedFree tier · from $9.99/mo

    An AI assistant for everyday and work tasks, with chat, search, drafting and image creation.

    Also does:Summarizing long textResearching a topicStudying with an AI tutor

    Web · Windows · Mac · iOS · Android

  2. 2

    ChatPDFVerifiedFree tier

    Upload a document, ask questions in plain language, and get answers with page citations.

    Also does:Chatting with PDFsSummarizing long textStudying with an AI tutor

    Web

  3. 3

    SciSpacePaid

    An AI tool for reading research papers with inline concept explanations, full-paper Q&A and related literature discovery.

    Also does:Researching a topicChatting with PDFsSummarizing long text

    Web · Browser extension

  4. 4

    ClaudeFree tier · from $20/mo

    Anthropic's AI assistant with a long context window, nuanced reasoning and strong performance on writing and analysis.

    Also does:Researching a topicChatting with PDFs

    Web · iOS · Android · API

  5. 5

    PerplexityFree tier

    An AI search assistant that answers questions with cited web sources and supports multi-step deep research reports.

    Also does:Researching a topicSummarizing long text

    Web · iOS · Android · Browser extension

  6. 6

    KimiFree tier

    Long-context assistant that reads huge documents.

    Also does:Chatting with PDFsResearching a topic

  7. 7

    ElicitVerifiedFree tier · from $11/mo

    AI research assistant that finds academic papers and drafts cited reports for researchers.

    Also does:Summarizing long textResearching a topic

    Web

  8. 8

    KhanmigoVerifiedFree tier · from $4/mo

    An AI tutor and teaching assistant from Khan Academy for students, teachers, and parents.

    Also does:Studying with an AI tutorSummarizing long text

  9. 9

    SciteFree trial

    An academic research platform that classifies citations as supporting or contrasting, showing the evidential weight behind published claims.

    Also does:Researching a topicChatting with PDFs

    Web · Browser extension

  10. 10

    HumataVerifiedFree tier · from $9.99/mo

    Lets researchers, students, and teams ask questions across their PDFs and get answers with citations.

    Also does:Chatting with PDFsSummarizing long text

    Web

  11. 11

    ChatGPTFree tier · from $8/mo

    OpenAI's AI assistant for questions, writing, coding and research, with a free tier and paid plans for more capable models.

    Also does:Researching a topic

    NotebookLM vs ChatGPTWeb · iOS · Android · API

  12. 12

    Google GeminiFree tier · from $9.99/mo

    Google's multimodal AI assistant with live web search and deep integration with Gmail, Docs and Drive.

    Also does:Researching a topic

    Web · iOS · Android

  13. 13

    QuillBotFree tier

    Paraphrasing and writing tool that rewrites text in several modes with grammar checking built in.

    Also does:Summarizing long text

    Web · Browser extension

  14. 14

    ManusVerifiedFree tier

    An autonomous AI agent for teams and individuals that completes tasks and builds web apps from prompts.

    Also does:Researching a topic

    Web · API

  15. 15

    Otter.aiVerifiedFree tier · from $16/mo

    Records, transcribes and summarizes meetings for individuals and teams, then answers questions about them.

    Also does:Summarizing long text

    Mac · Windows · iOS · Android

At a glance

ToolPricingFreePlatformsAPIChecked
NotebookLMFree tier · from $9.99/moYesWeb, iOS, AndroidNo—
Microsoft CopilotFree tier · from $9.99/moYesWeb, Windows, Mac, iOS, AndroidNoNov 3, 2026
ChatPDFFree tierYesWebYesNov 4, 2026
SciSpacePaidNoWeb, Browser extensionNo—
ClaudeFree tier · from $20/moYesWeb, iOS, Android, APIYes—
PerplexityFree tierYesWeb, iOS, Android, Browser extensionYes—
KimiFree tierYes—No—
ElicitFree tier · from $11/moYesWebYesNov 4, 2026
KhanmigoFree tier · from $4/moYes—NoNov 4, 2026
SciteFree trialNoWeb, Browser extensionYes—
HumataFree tier · from $9.99/moYesWebNoNov 4, 2026
ChatGPTFree tier · from $8/moYesWeb, iOS, Android, APIYes—
Google GeminiFree tier · from $9.99/moYesWeb, iOS, AndroidYes—
QuillBotFree tierYesWeb, Browser extensionNo—
ManusFree tierYesWeb, APINoNov 3, 2026
Otter.aiFree tier · from $16/moYesMac, Windows, iOS, AndroidYesNov 4, 2026

Common questions

What is the best alternative to NotebookLM?
Microsoft Copilot is the closest match: it also covers summarizing long text, researching a topic and studying with an AI tutor. ChatPDF and SciSpace come next. Alternatives are ordered by how many of NotebookLM's tasks they share, then by how popular they are.
Is there a free alternative to NotebookLM?
Yes. Microsoft Copilot, ChatPDF and Claude can be used for free. Microsoft Copilot has a free plan, and paid plans start at $9.99 per month.
What is the cheapest alternative to NotebookLM?
Among paid plans, Khanmigo starts lowest at $4 per month, against $9.99 for NotebookLM.
Which NotebookLM alternatives have a mobile app?
Microsoft Copilot, Claude and Perplexity have an iPhone or Android app.