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
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

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
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
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
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
KimiFree tier
Long-context assistant that reads huge documents.
Also does:Chatting with PDFsResearching a topic
- 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

KhanmigoVerifiedFree tier · from $4/mo
An AI tutor and teaching assistant from Khan Academy for students, teachers, and parents.
- 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
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
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
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
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

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

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
| Tool | Pricing | Free | Platforms | API | Checked |
|---|---|---|---|---|---|
| NotebookLM | Free tier · from $9.99/mo | Yes | Web, iOS, Android | No | — |
| Microsoft Copilot | Free tier · from $9.99/mo | Yes | Web, Windows, Mac, iOS, Android | No | Nov 3, 2026 |
| ChatPDF | Free tier | Yes | Web | Yes | Nov 4, 2026 |
| SciSpace | Paid | No | Web, Browser extension | No | — |
| Claude | Free tier · from $20/mo | Yes | Web, iOS, Android, API | Yes | — |
| Perplexity | Free tier | Yes | Web, iOS, Android, Browser extension | Yes | — |
| Kimi | Free tier | Yes | — | No | — |
| Elicit | Free tier · from $11/mo | Yes | Web | Yes | Nov 4, 2026 |
| Khanmigo | Free tier · from $4/mo | Yes | — | No | Nov 4, 2026 |
| Scite | Free trial | No | Web, Browser extension | Yes | — |
| Humata | Free tier · from $9.99/mo | Yes | Web | No | Nov 4, 2026 |
| ChatGPT | Free tier · from $8/mo | Yes | Web, iOS, Android, API | Yes | — |
| Google Gemini | Free tier · from $9.99/mo | Yes | Web, iOS, Android | Yes | — |
| QuillBot | Free tier | Yes | Web, Browser extension | No | — |
| Manus | Free tier | Yes | Web, API | No | Nov 3, 2026 |
| Otter.ai | Free tier · from $16/mo | Yes | Mac, Windows, iOS, Android | Yes | Nov 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.