Comparison
Grammarly vs NotebookLM
Grammarly vs NotebookLM, laid out side by side: pricing model, platforms, available models, core features, and supported formats. Both tools are listed under the Text Generation category, and every field comes from this site's directory records. A pricing model is not an amount.
Quick verdict
Grammarly: Free/Pro/Enterprise; rewriting and plagiarism detection need Pro; NotebookLM: Source-grounded research workspace now named Gemini Notebook. Start with the task you need to finish. Sharing a category does not establish that they are interchangeable; they may serve different stages of a workflow. The conditions and evidence gaps for each follow below.
How to choose for the same task
Both sides belong to the Text Generation category. The conditionals below come from this site's directory records: first check which side's suitability fits your task and which side's exclusions affect you less; if both fit, decide by pricing basis and by how well platforms and formats line up. Prices appear only where a record has been verified; where it has not, no number is given.
Grammarly
Fact sourceWhen to pick it Choose Grammarly when the same spelling and tone suggestions have to follow you across browser, desktop, and mobile apps, and you accept that full-sentence rewriting, plagiarism detection, and AI-generated-text detection all start at Pro.
When to skip it Free caps AI prompts at 100 per month and has no full-sentence rewriting or plagiarism detection; for line-by-line polishing and paraphrase the closer record in this directory is QuillBot, and for sentence-level alternative phrasings it is Wordtune. SAML single sign-on, SCIM, BYOK, and data loss prevention are Enterprise only, so check that line before procurement instead of inferring it from Pro; the page states no full commercial licence scope (unverified).
Verified price: Free 0 — USD / month; Pro 12 — USD (strikethrough, billing period not stated; page also writes Try for free and 0 USD payment today, a 7-day trial; 12 USD not treated as a standalone monthly price). Grammarly Subscription (embedded plan data): Monthly 30 — USD / month; Quarterly 60 — USD / 3 months; Annual 144 — USD / year; institutional 25 — USD / 1 month; flat EDU 50 — USD / 12 months; dynamic 180 — USD / 12 months (per-seat status not stated). Enterprise Contact Sales only, no amount. (region: not stated, checked 2026-10-12). Annual prices are not converted to monthly.
Official sourceNotebookLM
The official site and help centre now write NotebookLM as Gemini Notebook: the sign-in page at notebooklm.google.com is titled Sign in to Gemini Notebook.
Fact sourceWhen to pick it Choose Gemini Notebook (formerly NotebookLM) to turn a pile of your own files into a research workspace with explicit source caps: the free Standard tier gives 100 notebooks per user and 50 sources per notebook, and Pro raises that to 500 and 300.
When to skip it It answers only from what you upload and adds no outside facts; source caps are fixed per tier — 100 on Plus, 300 on Pro, and 500 or 600 on Ultra — and going over means another notebook. For open-web retrieval with clickable citations, the closer directory record is You.com; to run the same PDFs through local or self-hosted models without buying Google AI, the closer record is Ollama. This is not a ranked review.
Verified price: Standard Free; Google AI Pro 19.99 / month, 199.99 / year; Google AI Ultra 99.99 / month (monthly billing only) — USD / month (region: US, checked 2026-10-12). Annual prices are not converted to monthly.
Official source| Attribute | ||
|---|---|---|
| Directory score | 4.6 / 5 | 4.7 / 5 |
| Pricing | Freemium | Freemium |
| Platforms | Not verified | Not verified |
| Models | Not verified | Not verified |
| Core features | Spelling and grammar checking (all three tiers), Full-sentence rewriting and tone adjustment (Pro and above), Plagiarism and AI-generated-text detection (Pro and above) | Document Q&A, Audio overviews, Cited sources |
| Formats | Not verified | Not verified |
Cells marked "Not verified" in the table are fields the directory still keeps but did not check item by item against the official source this time; they are not verified facts. Please double-check them on the detail pages for Grammarly, NotebookLM.
Open a tool page for its official source link and directory record date.
Open the comparison tool to combine more tools →FAQ
How does Grammarly pricing compare with NotebookLM?+
Grammarly: Verified price: Free 0 — USD / month; Pro 12 — USD (strikethrough, billing period not stated; page also writes Try for free and 0 USD payment today, a 7-day trial; 12 USD not treated as a standalone monthly price). Grammarly Subscription (embedded plan data): Monthly 30 — USD / month; Quarterly 60 — USD / 3 months; Annual 144 — USD / year; institutional 25 — USD / 1 month; flat EDU 50 — USD / 12 months; dynamic 180 — USD / 12 months (per-seat status not stated). Enterprise Contact Sales only, no amount. (region: not stated, checked 2026-10-12). Annual prices are not converted to monthly. NotebookLM: Verified price: Standard Free; Google AI Pro 19.99 / month, 199.99 / year; Google AI Ultra 99.99 / month (monthly billing only) — USD / month (region: US, checked 2026-10-12). Annual prices are not converted to monthly.
Which platforms do Grammarly and NotebookLM support?+
Grammarly runs on "Not verified" (see the Grammarly page); NotebookLM runs on "Not verified" (see the NotebookLM page). If you hand work between devices — draft on desktop, tweak on mobile — check that both ends of your usual setup are covered, and note that feature completeness can differ per platform.
Which file formats do Grammarly and NotebookLM support?+
Grammarly supports "Not verified" (see the Grammarly page); NotebookLM supports "Not verified" (see the NotebookLM page). Format coverage decides whether either tool slots into your existing asset and delivery pipeline, so align inputs and outputs before pairing them.
Should I pick Grammarly or NotebookLM?+
Grammarly: Choose Grammarly when the same spelling and tone suggestions have to follow you across browser, desktop, and mobile apps, and you accept that full-sentence rewriting, plagiarism detection, and AI-generated-text detection all start at Pro. NotebookLM: Choose Gemini Notebook (formerly NotebookLM) to turn a pile of your own files into a research workspace with explicit source caps: the free Standard tier gives 100 notebooks per user and 50 sources per notebook, and Pro raises that to 500 and 300.
Where does this comparison data come from, and how fresh is it?+
The directory record for Grammarly is dated 2026-10-12 and for NotebookLM 2026-10-12. Pricing models, platforms, models, features, and formats come from this site's directory records rather than live crawling. A pricing model is not an amount. Capabilities and prices change between versions, so re-check the official sources linked from each tool page before deciding.