Google NotebookLM

Google NotebookLM (Now “Gemini Notebook”) — Source-Grounded Research Studio With Audio Overview + Deep Research (Active, Renamed Jul 2026, Not Shut Down)

Not shut down.​ NotebookLM launched 2023 by Google Labs; July 16 2026 renamed “Gemini Notebook”​ (notebooklm.google.com redirects to notebook.google.com, same product/same plans/same SLAs — per your Roam→Layla rule this is a rebrand, not shutdown, not acquired). Active 2026-08, Google-owned, no acquire/discontinue. Category ai-productivity-data; pipeline_stage none. Killer differentiator = strict source-grounded RAG (every answer inline-cites your uploaded passage, refuses to answer outside corpus) + Audio Overview (two-AI-host podcast from your docs) + Video Overview + Mind Maps/Flashcards/Quizzes/Slide Decks/Data Tables/Infographics + Deep Research agent (web-augmented, cites back) + 1M-token context (Jan 2026) + 50 sources/notebook free, backed by Gemini 3 / 3.5; not ChatGPT Projects (blends training data, weaker passage citations), not Perplexity Spaces (web-first, no audio overview), not Elicit (paper/SLR-only, no audio/podcast), not Claude Projects (great reasoning, no grounded RAG UI/audio). 2026 trap: no standalone NotebookLM subscription — paid tiers only via Google AI Plus($4.99)/Pro($19.99)/Ultra($99.99–199.99), free caps bite power users (50 chats/day, 3 audio+3 video/day, 10 Deep Research/mo), 500K words/200MB per source ceiling, fumbles complex tables/figures/LaTeX/OCR scans, no public API, no offline mode, Google-account lock-in, Cinematic Video Overview Ultra-only, Deep Research can’t hit arXiv/PubMed directly (manual PDF import needed), Chinese worse than English.

1. One-line positioning

NotebookLM = “research microscope, not Swiss Army knife”: drop PDF/DOCX/EPUB/Google Drive/Sheets/YouTube URL/text → AI ingests with 1M-token window → ask questions (each sentence inline-linked to source span) → generate Audio Overview (two-host 15-min podcast), Video Overview, Mind Map, Study Guide, Flashcards, Quizzes, Slide Deck (PPTX export), Data Table, Infographic → Deep Research agent blends corpus + web into cited report → save chat history, build source repo from a chat. Fits ai-productivity-data; pipeline_stage none (upload→ground→query→synthesize→export). For students turning lecture PDFs into walk podcasts, analysts grinding 40-source competitive teardowns, lawyers/consultants grounding memos in client docs, and researchers pre-reading before Elicit/Consensus, it’s the cleanest grounded layer; for open-ended writing/coding/web-no-corpus, ChatGPT/Claude win.

2. Core features

3. Pricing (2026-08, USD — no standalone SKU, bundled in Google AI)

pricing_type = freemium-bundled-in-google-ai-subscription; starting_price = $0; free_tier = "yes; 100 notebooks, 50 sources each, 50 chats/day, 3 audio+3 video overviews/day, 10 Deep Research/month, 1M ctx, all core studio tools, no API, no Cinematic Video, auto-model only"; pricing_note = "jul-16-2026-notebooklm-renamed-gemini-notebook-redirect-not-shutdown; no-standalone-sku-paid-only-via-google-ai-plus-4.99-pro-19.99-ultra-99.99-199.99; plus-cut-7.99-to-4.99-jun-2026; per-source-500k-words-200mb-all-tiers; cinematic-video-ultra-only; student-pro-9.99-verified; free-caps-50-chats-3-audio-bite-power-users"

4. Access Type

access_type: web-only-no-desktop-no-offline

access_display: 🌐 notebooklm.google.com (→ notebook.google.com) · 📱 mobile web wrapper (no native iOS/Android app) · 🔌 Drive/Sheets/YT URL import · no MCP, no public REST API, no offline mode

5. Reviews (2026)

Praise: inline citations per sentence (auditable, no hallucination outside corpus), Audio Overview turns 200-page PDF into commute podcast, Mind Map/Flashcards ship study kit in 1 click, free 50 sources enough for course-scale work, 1M ctx Jan 2026 killed chunking pain, Deep Research bridges corpus+web with citations.

Gripes: free daily caps frustrate daily power users, no standalone purchase (must buy Google AI Pro $19.99 even if you only want 300 sources), tables/figures/LaTeX/OCR scans unreliable, no API/MCP/offline (bad for conference Wi-Fi), Google account lock-in, Cinematic Video Ultra-gate, Chinese < English, Deep Research can’t natively query academic DBs, chat doesn’t persist idea-structure across sessions like a canvas.

6. Best for / Not for

7. Competitors

8. Directory verdict (short_desc)

Google NotebookLM / Gemini Notebook (2023 Labs, renamed Jul 16 2026, active) = source-grounded research studio: upload PDF/Docx/Drive/YT → 1M-ctx Gemini 3/3.5 RAG with inline passage citations, Audio Overview (2-host podcast), Video Overview (Cinematic=Ultra), Mind Maps/Flashcards/Quizzes/Slide Decks/Data Tables/Infographics, Deep Research agent (corpus+web cited), 50 sources/notebook free. Free $0 (100 nb, 50 src, 50 chats/day, 3+3 AV, 10 DR/mo) / AI Plus $4.99 (100 src, 200 chats, 6+6 AV) / AI Pro $19.99 (300 src, 500 chats, 20+20 AV, 20 DR/day, students $9.99) / Ultra 20TB $99.99 / 30TB $199.99 / Ent custom. Category ai-productivity-data; pipeline_stage none. Not ChatGPT/Claude/Perplexity/Elicit. Gotchas: jul-2026-rename-gemini-notebook-not-shutdown, no-standalone-sku-bundled-google-ai, free-50-chats-3-audio-bite, per-source-500k-words-200mb, tables-figures-latex-ocr-fumble, no-api-no-offline-google-lockin, cinematic-video-ultra-only, deep-research-no-arxiv-pubmed-native, chinese-worse-english.