Maak afbeeldingen en video's.
De beste beeld- en videomodellen, in één studio.
NotebookLM scores 4.4 on G2, but 48% of its Trustpilot reviews give it one star.
Door KevinEvery rating read on 19 October 2026
We read NotebookLM's reviews on 19 October 2026 (Google now calls the product Gemini Notebook). G2 rates it 4.4 out of 5 from 60+ reviews, while Trustpilot scores notebooklm.google 2.5 out of 5 from 35+ reviews. On Trustpilot, 48% of reviewers give it one star, and user complaints center on Gemini-only lock-in, limited file deliverables, and daily Audio Overview caps on the free tier.
ZemithOur pick
Zemith Plus includes a 50-source Study Library with podcasts, quizzes, and multi-model chat for $15.99/mo.
- Upload up to 50 PDFs, docs, spreadsheets, or YouTube links into Library to generate two-host audio podcasts, interactive quizzes, flashcards, mind maps, and cited study guides.
- Query your sources with GPT, Claude, Gemini, Grok, and DeepSeek, or switch seamlessly to live web search and Deep Research when your notes lack context.
- Export real, formatted Word (.docx), PowerPoint (.pptx), Excel (.xlsx), and PDF files directly from the cloud sandbox with live document preview.
- 1.5M transparent monthly credits on Plus ($15.99/mo) and 3M on Professional ($29.99/mo), with full Creative Studio image and video tools included.
NotebookLM via Google AI Pro$19.99/mo
Google AI Pro ($19.99/mo) or Ultra ($99.99–$199.99/mo) · Gemini only · No Office exports
Zemith Plus$15.99/mo
50-source Library + GPT, Claude, Gemini, Grok + Creative Studio + .docx/.pptx/.xlsx exports
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Here is how NotebookLM is rated on the two biggest review sites.
4.4
G2, 60+ reviews · geraadpleegd op 19 Oct 2026
G2's verified reviewers praise NotebookLM's two-host Audio Overviews and precise source grounding, while noting strict source-only boundaries, inability to query other LLMs, and lack of document export formatting:
5 stars68%
4 stars22%
3 stars6%
2 stars2%
1 star2%
2.5
Trustpilot, 35+ reviews · geraadpleegd op 19 Oct 2026
Trustpilot reviewers praise the initial podcast generation novelty, but express frustration over strict daily Audio Overview caps, inability to query anything outside uploaded files, and frequent hallucinations when sources contradict each other:
5 stars34%
4 stars6%
3 stars6%
2 stars6%
1 star48%
Google's separate company profile on Trustpilot covers broad consumer services, while notebooklm.google specifically captures reviews for Google's AI notebook tool as read on 19 October 2026.
Turn up to 50 PDFs, docs, videos or web links into 2-speaker audio podcasts, interactive quizzes, flashcards, mind maps and cited study guides.
Alle workspace-tools inbegrepen in één abonnement.
Generate real Word documents, PowerPoint presentations, Excel spreadsheets and PDFs, or create visual media with Flux 2 and Veo 3.1.
Krijg kant-en-klaar werk, niet alleen antwoorden.
Vraag het één keer en krijg documenten, presentaties, spreadsheets en pdf's die klaar zijn om te versturen.
Besteed het saaie werk uit.
Cloudtaken blijven doorwerken terwijl je weg bent, desgewenst volgens een schema.
Leer van elk bestand.
Maak van pdf's, links en YouTube-video's podcasts, quizzen, flashcards en mindmaps.
Blijf in de flow.
Houd chats, notities en whiteboards naast elkaar open in FocusOS en wissel zonder de draad kwijt te raken.
Werkt met de apps die je al gebruikt.
Notion, Linear, Canva, Airtable en meer. Zemith vraagt het eerst voordat het iets aanmaakt of wijzigt.
Praat ermee. Laat je scherm zien.
Realtime spraak die je camera of scherm kan zien.
Bouw het één keer. Gebruik het altijd.
Koppel modellen en tools op een visueel canvas, van één prompt tot een kant-en-klare promovideo.
Zet routinewerk op de automatische piloot.
Briefings, rapporten en herinneringen draaien volgens schema en staan klaar wanneer je ze nodig hebt.
Maak van elke opname notities.
Upload een vergadering of college en krijg een transcript met tijdstempels dat je met één klik samenvat.
Luister onderweg.
Zet documenten en notities om in natuurlijk klinkende audio, met veel stemmen of je eigen stem.
Gebruik voor elke klus het beste model.
GPT, Claude, Gemini, Grok, DeepSeek en meer in één chat. Wissel wanneer je wilt.
How NotebookLM compares with Zemith on study tools, models and file exports.
Public US monthly prices and included capabilities, checked 19 October 2026.
| Capability | NotebookLM Free | Gemini Notebook (Google AI Pro) | Zemith Plus | Zemith Professional |
|---|---|---|---|---|
Monthly price (USD) Billed monthly / yearly | $0/mo | $19.99/mo ($239.88/yr) or Ultra $99.99–$199.99/mo | $15.99/mo ($179.88/yr, $14.99/mo) | $29.99/mo ($299.88/yr, $24.99/mo) |
AI model families Switch mid-chat | Google Gemini only | Google Gemini only (expanded limits) | GPT, Claude, Gemini, Grok, DeepSeek, Kimi, Qwen, GLM, MiniMax, Mistral, Sonar | All Plus models + Claude Opus, GPT 6 Sol & Astra, Gemini 4 Argon, Sonar Pro |
Mid-chat model switching & routing Compare providers in one thread | Single vendor only (Gemini) | Single vendor only (Gemini) | Switch between GPT, Claude, Gemini, Grok & DeepSeek inside the same conversation | Switch mid-chat across every flagship reasoning model + custom default model |
Monthly usage & credit transparency Predictable allowance | Strict daily Audio Overview limits | Higher daily Audio Overview caps | 1.5M credits/mo + visible per-model credit cost + optional top-ups | 3M credits/mo + Max Mode + visible per-model cost + optional top-ups |
Web search & Deep Research Multi-step cited reports | Source Discovery and Deep Research can add web sources; answers stay grounded in your sources | Source Discovery and Deep Research can add web sources; answers stay grounded in your sources | Built-in live web search + multi-step cited Deep Research reports + Perplexity Sonar | Built-in live web search + Deep Research + Perplexity Sonar Pro |
Image generation & editing studio Text-to-image, inpaint & upscale | Not included | Not included | Creative Studio: Nano Banana, GPT Image, Flux 2, Seedream + bg removal, 4x upscale, generative fill, object swap | Full Creative Studio + highest-tier image models & batch editing |
AI video generation Text-to-video & image-to-video | Not included | Not included | Veo 3.1, Kling, Wan, Seedance 2.5 in Creative Studio | Veo 3.1, Kling, Wan, Seedance 2.5 + Motion control workflow node |
Finished Office file deliverables Real downloadable files | Export reports to Google Docs, tables to Sheets, slides to PPTX | Export reports to Google Docs, tables to Sheets, slides to PPTX | Word (.docx), PowerPoint (.pptx), Excel (.xlsx) & PDF built in cloud sandbox with live preview | Word (.docx), PowerPoint (.pptx), Excel (.xlsx) & PDF built in cloud sandbox with live preview |
Document Library & Study Studio Up to 50 sources per notebook | 50 sources; 2-speaker Audio Overviews, study guides, FAQ | Expanded sources; 2-speaker Audio Overviews with customization | 50 sources; 2-speaker AI podcasts, interactive quizzes, flashcards, mind maps, infographics, slide decks & phone call with sources | 50 sources; 2-speaker AI podcasts, interactive quizzes, flashcards, mind maps, infographics, slide decks & phone call with sources |
Background & scheduled Cloud agents Runs with the app closed | Not included | Not included | Interactive chat + visual workflows | Zemith Cloud: up to 35 recurring cron schedules, 3 concurrent background tasks, email & push alerts |
Connected app plugins with approval Human-in-the-loop actions | Google Drive source import only | Google Drive source import only | Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive: asks approval before any write | Notion, Linear, Canva, Airtable, Google Calendar, Gmail & Drive: works in chat & Cloud agents |
Live Voice with camera & screen sharing Real-time multimodal voice | Not included (audio podcast playback only) | Not included (audio podcast playback only) | Real-time voice conversation that sees your live camera or shared screen | Real-time voice conversation that sees your live camera or shared screen |
Speech Studio (STT, TTS & Voice Cloning) Audio transcription & synthesis | Pre-generated audio overviews only | Pre-generated audio overviews only | Timestamped speaker-diarized Speech-to-Text + multi-speaker Text-to-Speech + custom voice cloning | Timestamped speaker-diarized Speech-to-Text + multi-speaker Text-to-Speech + custom voice cloning |
Visual Workflow Builder Node-based automation canvas | Not included | Not included | Chain prompts, web search, image gen, cutout & video nodes into reusable workflows | Full Workflow Studio including Motion video transfer nodes |
AI Notes, Whiteboard & FocusOS Side-by-side workspace apps | Basic written notes panel | Basic written notes panel | Rich-text AI Notes, infinite canvas Whiteboard, and FocusOS split-screen tabs | Rich-text AI Notes, infinite canvas Whiteboard, and FocusOS split-screen tabs |
Projects, memory, teams & 50+ quick tools Web, iOS & Android | Notebooks only (Web app only, no dedicated mobile app) | Notebooks only (Google Workspace / Google One integration) | Projects, editable memory, shared team threads, 50+ AI tools (humanizer, rewriter, YouTube to blog) on Web, iOS & Android | Projects, editable memory, shared team threads, 50+ AI tools on Web, iOS & Android |
Our verdict: NotebookLM excels at audio overviews, but Gemini-only lock-in and limited file exports hold it back.
- G2 rates NotebookLM 4.4 out of 5 across 60+ reviews for its conversational podcasts and source grounding, while Trustpilot rates notebooklm.google 2.5 out of 5 across 35+ reviews (with 48% one-star ratings).
- The most repeated complaints are Gemini-only answers, inability to use Claude or GPT on uploaded materials, and having to pay $4.99 to $199.99 a month for Google AI tiers just to raise usage caps.
- Zemith Plus costs $15.99/mo and combines a 50-source Study Library (audio podcasts, quizzes, flashcards, mind maps) with GPT, Claude, Gemini, Grok, live Deep Research, and downloadable Word, PowerPoint, Excel, and PDF files.
- If you want to compare how Zemith handles uploaded documents, read Chat with PDF & Document Analysis, or check our complete breakdown of NotebookLM pricing and plans below.
These are the questions people ask about NotebookLM reviews.
Is NotebookLM free to use in 2026?
NotebookLM offers a $0 Free tier that lets you upload up to 50 sources per notebook. However, Free tier users face strict daily limits on generating Audio Overviews, and increasing those limits requires subscribing to Google AI Pro ($19.99/mo) or Google AI Ultra ($99.99–$199.99/mo).
Can I switch AI models or use Claude in NotebookLM?
No. NotebookLM is strictly limited to Google's Gemini models. You cannot test your uploaded documents against Anthropic Claude, OpenAI GPT, xAI Grok, or DeepSeek within NotebookLM. Zemith's Study Library allows you to query your uploaded sources with any top model.
How does Zemith Study Library compare to NotebookLM Audio Overviews?
Both create two-speaker conversational audio podcasts from uploaded sources. However, Zemith's Study Library also creates interactive spaced-repetition flashcards, multiple-choice quizzes, visual mind maps, and cited study guides from up to 50 sources, and supports live web search and multi-model chat.
Can NotebookLM export Word, PowerPoint, or Excel files?
Partly. Gemini Notebook exports reports and notes to Google Docs, data tables to Google Sheets, and slide decks to PowerPoint (.pptx), but we found no way to export finished Word (.docx) or Excel (.xlsx) files directly. Zemith includes a cloud sandbox that generates all four file formats directly in chat.
What do reviewers complain about most in NotebookLM reviews?
Reviewers on G2 and Trustpilot most frequently complain about strict daily Audio Overview caps on the free tier, Gemini-only answers when documents lack context, limited file exports, and inability to query Claude or GPT models.
Try Zemith free, with a 50-source Study Library, multi-model chat and Creative Studio.
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Artikel door Kevin · Founder at Zemith
Founder of Zemith, the all-in-one AI workspace built for people who use GPT, Claude, Gemini, Grok and Creative Studio every day.
I spend my weeks testing model releases, pricing structures and real document, research and creative workflows across Web, iOS and Android.