Yes—NotebookLM has plan, source, file and AI usage limits. Compare every published number for Standard, Plus, Pro and Ultra, including the new 5-hour AI usage refresh and weekly cap.
Google renamed the product Gemini Notebook in July 2026. This guide retains NotebookLM in its title because users still search for and recognize that name.
Last verified · Official / tested / reported evidence labeled separately · Limits subject to change
Watch the limits walkthrough
A walkthrough of every Gemini Notebook cap by plan — what upgrading raises, what it never raises, and how the compute-based five-hour window changes daily planning.
Watch on YouTube →Gemini Notebook now uses compute-based AI limits that generally refresh every 5 hours until you reach a weekly limit. Prompt complexity, model choice, conversation length, the number of sources and the features you use can affect usage. Google’s upgrade table still publishes plan-level daily and monthly feature quotas; fixed capacities such as notebooks, sources and file size do not refresh.
| Limit | Standard (free) | Plus | Pro | Ultra |
|---|---|---|---|---|
| Sources / notebook | 50 | 100 | 300 | 500–600 |
| Local file size | 200 MB | 200 MB | 200 MB | 200 MB |
| Words / source | 500,000 | 500,000 | 500,000 | 500,000 |
| Published chats | 50/day | 200/day | 500/day | 2,500–5,000/day |
| Published Audio Overviews | 3/day | 6/day | 20/day | 100–200/day |
| Published Video Overviews | 3/day | 6/day | 20/day | 100–200/day |
| AI usage level | Standard | 2× Standard | 4× Standard | 5×–20× Pro |
| AI usage refresh | About every 5 hours, until the account reaches its weekly limit | |||
The new policy changes how reset messages should be interpreted. A five-hour AI refresh, a weekly ceiling, published 24-hour/30-day feature quotas and fixed capacity limits can all coexist.
Each answer links to the complete category rather than mixing capacity questions with error repair.
Yes. NotebookLM limits notebooks, sources, file size, published feature quotas and compute-based AI use. Since September 2, 2026, AI usage generally refreshes every five hours until the account reaches a weekly limit. Exact availability varies by subscription plan and workload.
How the limits work →NotebookLM supports 50 sources per notebook on Standard, 100 on Plus, 300 on Pro, 500 on Ultra 20 TB and 600 on Ultra 30 TB. Sharing a notebook does not increase its source limit, and each notebook has an independent cap.
Source limits →Each NotebookLM source can contain up to 500,000 words, and each local upload can be up to 200 MB. Google publishes no universal PDF page limit. Upgrading raises notebook, source and usage capacity but does not raise this single-source ceiling.
File limits →There is no single reset clock anymore. Compute-based AI usage generally refreshes every five hours until the weekly ceiling. Separately, Google says its published daily feature quotas reset after 24 hours and monthly quotas after 30 days. Fixed notebook, source and file limits do not reset.
See the reset taxonomy →NotebookLM Standard includes 100 notebooks, 50 sources per notebook, 500,000 words per source and 200 MB per local upload. Google’s plan table also lists 50 chats and 3 Audio Overviews per day, while actual AI availability is subject to compute-based and weekly limits.
Free vs paid limits →Google does not publish a fixed NotebookLM chat-prompt, character or context-window limit. It does publish a 500,000-word ceiling for each source. Shorter, structured prompts are usually more reliable, while long or complex requests can consume substantially more compute-based AI usage.
Prompt and context →You can create 100 notebooks on Standard, 200 on Plus, and 500 on Pro or Ultra. This is fixed account capacity rather than refreshable AI usage. Deleting a notebook frees capacity; waiting for an AI usage reset does not.
Notebook limits →Google currently publishes qualitative tiers, not a precise deck count.
Slide limits →Slides stop at 100 slides; Sheets at 100,000 tokens. YouTube, web and Drive imports have additional rules.
Source-type limits →Google publishes no guarantee that every selected source is cited in each answer. Verify coverage explicitly.
Coverage check →These values are reproduced from Google’s current upgrade table. They remain useful for comparing plans, but refreshable AI access is also governed by the newer compute-based system and weekly limit.
Swipe horizontally to compare every plan →
| Limit | Standard $0 | Plus $9.99 | Pro $24.99 | Ultra 20 TB $99.99 | Ultra 30 TB $199.99 |
|---|---|---|---|---|---|
| Notebooks per user | 100 | 200 | 500 | 500 | 500 |
| Sources per notebook | 50 | 100 | 300 | 500 | 600 |
| Words per source | 500,000 | 500,000 | 500,000 | 500,000 | 500,000 |
| Local upload size | 200 MB | 200 MB | 200 MB | 200 MB | 200 MB |
| Chats per day | 50 | 200 | 500 | 2,500 | 5,000 |
| Audio Overviews per day | 3 | 6 | 20 | 100 | 200 |
| Video Overviews per day | 3 | 6 | 20; cinematic 2 | 100; cinematic 10 | 200; cinematic 20 |
| Reports per day | 10 | 20 | 100 | 500 | 1,000 |
| Flashcards per day | 10 | 20 | 100 | 500 | 1,000 |
| Quizzes per day | 10 | 20 | 100 | 500 | 1,000 |
| Mind Maps per day | 10 | 20 | 100 | 500 | 1,000 |
| Deep Research | 10/month | 3/day | 20/day | 75/day | 200/day |
| Data Tables | Limited | More limits | High limits | Higher limits | Highest limits |
| Infographics | Limited | More limits | High limits | Higher limits | Highest limits |
| Slide Decks & revisions | Limited | More limits | High limits | Higher limits | Highest limits |
Official sources: Published plan limits ↗ · Compute-based usage ↗
Published in Google’s current NotebookLM help documentation.
Hands-on NotebookLM Guide check. A test must name its date and account context; it is not an official quota.
User or community observation. Useful as a signal, never presented as a guaranteed limit.
Google has not provided a fixed public number, so this guide does not invent one.
The 500,000-word and 200 MB ceilings are only part of the import picture. Google publishes additional rules for Slides, Sheets, YouTube, websites and Drive.
Swipe horizontally to compare source types →
| Source type | Published limit or rule | Practical consequence |
|---|---|---|
| Uploaded sources | Up to 500,000 words or 200 MB per source | These ceilings apply across supported uploaded source types. Google states that inactive sources still count towards source limits even though they are not referenced in the notebook — deselecting a source does not free its slot. |
| Google Slides | Up to 100 slides per source | Split a larger presentation before importing it. |
| Google Sheets | Up to 100,000 tokens per source | Reduce or split very large sheets; this is a token limit, not a row count. |
| YouTube | Public video with captions; transcript only | Videos uploaded within the past 72 hours may be unavailable. There is no separate duration cap unless the transcript exceeds 500,000 words. |
| Web URL | Text from the linked page only | Images, embedded media, nested pages and paywalled content are not imported. |
| Google Drive | View access or higher is required | An inaccessible Drive source can still occupy a source slot but will not be referenced in chat or Studio output. |
| Copy-protected PDF | Will not import on any plan | Google lists this as one of three official import-failure causes, alongside the 500,000-word and 200 MB ceilings. No paid tier removes it — the file must be unprotected first. |
| Multi-tab Google files | All tabs import as one source | Data from multiple tabs in Google Docs and Sheets is pulled in as a single source, so a many-tab workbook costs one slot, not one per tab. |
| Google Play Books | Eligible ebooks can be added | Books from Google Play can be imported as sources; eligibility varies by title. |
| Google files | Footnotes and comments are not imported | Move essential annotations into the document body before adding the source. |
| Audio from Drive | Direct Drive import is not supported | Download the audio, then upload a supported audio file directly. |
Official source: Google supported source types and limits ↗
Capacity tells you how many sources may be stored. Google does not promise that every selected source will be cited in every response.
Copy this source-coverage promptCreate a source-coverage table with one row for every selected source. For each source, report either: (a) relevant evidence with a citation, or (b) “no relevant evidence found.” Do not omit a selected source.
Merge small, closely related files into labeled source packets. This saves slots, but you lose some source-level citation granularity.
Create separate notebooks for distinct themes or phases. NotebookLM cannot query across notebooks in one answer.
Export a verified summary from each themed notebook, then import those summaries into a master notebook. Preserve links back to the original evidence.
Pay for a higher tier when many sources must remain separate and independently citable—not merely because you have many small files.
A traceable, source-grounded research system — from question framing through verified, citation-ready synthesis.
Type a feature, plan or capacity. Matching rows and cards remain highlighted.
Showing all limit categories.
Maximum sources per notebook range from 50 to 600 by plan. For PDFs and other local uploads, the file-size ceiling is 200 MB and the text ceiling is 500,000 words per source; Google publishes no universal PDF page-count limit.
Standard 100; Plus 200; Pro and both Ultra tiers 500 per user.
Standard 50; Plus 100; Pro 300; Ultra 500 or 600 per notebook.
The documented per-source local-upload ceiling is unchanged by upgrading.
Google publishes no universal page limit; page count depends on text density.
Swipe horizontally to compare capacity →
| Capacity | Published rule | What it means |
|---|---|---|
| Notebooks per account | 100–500 by plan | Creating or deleting notebooks changes occupied capacity; waiting does not. |
| Sources per notebook | 50–600 by plan | Each notebook is independent, and sharing does not expand the source cap. |
| Words per source | 500,000 | Applies to every documented consumer tier. |
| Local upload size | 200 MB | Upgrading does not raise the single-file ceiling. |
| PDF page count | Not published | Use the word and file-size ceilings instead of assuming one page maximum. |
| Combined NotebookLM storage | Not published | Google does not publish one account-wide storage allowance. Practical capacity is defined by notebooks per account, sources per notebook, 500,000 words per source and the 200 MB local-upload ceiling. |
Official source: Google NotebookLM FAQ ↗
AI usage generally refreshes every 5 hours until you reach a weekly limit. The amount consumed varies with prompt complexity, model and feature choice, conversation length, the number of sources and the features you use. Google does not publish a per-source or per-prompt cost formula.
The interface shows the account-specific return time for immediate AI usage.
Five-hour refreshes continue only while weekly capacity remains. Check Settings → Usage.
Google still publishes daily feature quotas for chats, Audio, Video, reports and other features.
Monthly quotas, such as Standard Deep Research, use a separate 30-day reset period.
Notebook count, sources per notebook, words per source and file-size ceilings require deletion, restructuring or a higher-capacity plan.
Swipe horizontally to compare Google’s published feature quotas →
| Feature | Standard | Plus | Pro | Ultra 20 TB | Ultra 30 TB |
|---|---|---|---|---|---|
| Chats | 50/day | 200/day | 500/day | 2,500/day | 5,000/day |
| Audio Overviews | 3/day | 6/day | 20/day | 100/day | 200/day |
| Video Overviews | 3/day | 6/day | 20/day + 2 cinematic | 100/day + 10 cinematic | 200/day + 20 cinematic |
| Reports | 10/day | 20/day | 100/day | 500/day | 1,000/day |
| Flashcards / Quizzes / Mind Maps | 10/day each | 20/day each | 100/day each | 500/day each | 1,000/day each |
| Deep Research | 10/month | 3/day | 20/day | 75/day | 200/day |
Official sources: Compute-based usage and 5-hour refresh ↗ · Published plan quotas ↗ · August 28 announcement ↗
Google’s plan table publishes exact daily counts for some outputs and qualitative tiers for Data Tables, Infographics and Slide Decks. Actual availability also depends on the account’s compute-based AI usage and weekly limit.
3, 6, 20, 100 or 200 per day across the five consumer tiers.
3 to 200 per day; Pro and Ultra also list separate cinematic quotas.
10 to 1,000 per day, depending on consumer plan.
Flashcards, Quizzes and Mind Maps each range from 10 to 1,000 per day.
Standard: 10/month. Paid tiers: 3 to 200/day.
Limited → More → High → Higher → Highest. No exact public count.
Limited → More → High → Higher → Highest. No exact public count.
Limited → More → High → Higher → Highest. Revisions consume deck quota.
Official sources: Google consumer limits table ↗ · Flexible usage announcement ↗
These queries are common, but they do not all have official numeric answers. This section distinguishes published capacity from model-level assumptions.
Google’s current NotebookLM limits table does not state one fixed token or context-window number. Do not substitute a general Gemini app context figure: NotebookLM also applies source selection, notebook capacity and product-specific retrieval behavior.
Google does not publish a fixed public character or word maximum for NotebookLM chat prompts or Studio custom instructions. For reliability, use a clear objective, selected sources, constraints and required output rather than one oversized instruction block.
Google explains that selected sources and conversation history are used to generate responses; notes are included when specifically selected. This describes input behavior, not a published token ceiling.
No public specification promises equal treatment of every source in a large notebook. Choose the relevant source subset when precision matters and treat maximum capacity as storage, not a guarantee of ideal reasoning quality.
Google does not currently publish fixed character counts for these input fields.
| Input field | Published character limit |
|---|---|
| NotebookLM chat prompt | Not published |
| Slide Deck custom prompt | Not published |
| Audio Overview custom instructions | Not published |
| Video Overview custom instructions | Not published |
Google does not currently publish one exact Slide Deck count. Its limits table uses qualitative tiers—Limited, More, High, Higher and Highest—so any exact decks-per-day number should be labeled as a dated test or user report, not an official limit.
Official source: Google Slide Deck help ↗
Google publishes no universal completion time for Studio outputs. It says Slide Deck generation may take multiple minutes; other timing depends on the notebook and service conditions.
Google’s published wording. Longer decks and denser source sets may require more processing.
Length, format and source breadth affect generation. Google publishes no universal duration.
Visual and cinematic complexity can increase processing, but Google provides no service-time guarantee.
Focused notebooks generally require less synthesis than broad, source-dense notebooks.
Required structure, evidence breadth and output length influence processing time.
A narrow topic and relevant source subset reduce unnecessary synthesis work.
Consistent tables and clearly labeled fields are easier to extract than irregular source content.
Visual scope and source breadth affect processing; Google publishes no exact completion time.
Official source: Google Slide Deck help ↗
Gemini Notebook is included in Google AI subscriptions. These are current U.S. list prices; regional pricing, taxes and promotions can differ.
Standard AI usage for light research and occasional Studio output.
100 notebooks · 50 sourcesTwo times Standard AI usage plus expanded capacity.
200 notebooks · 100 sourcesFour times Standard AI usage and higher research capacity.
500 notebooks · 300 sourcesFive times Pro AI usage and higher published quotas.
500 sources · 20 TB storageTwenty times Pro AI usage and maximum published capacity.
600 sources · 30 TB storageStay free for light, non-urgent work that fits 50 sources per notebook and tolerates the Standard compute-based usage ceiling.
Choose Plus when 100 independent sources or twice the Standard AI usage would remove occasional interruptions.
Use Pro for sustained research, up to 300 sources and four times Standard AI usage without paying Ultra prices.
Reserve Ultra for high-volume work that repeatedly reaches Pro’s weekly AI usage or 300-source ceiling.
Official sources: Google AI Plans ↗ · Usage-limit multipliers ↗
Work and school accounts use access levels and licensing. Their numbers are not always identical to personal Google AI consumer tiers.
Swipe horizontally to compare Workspace access →
| Limit | Standard | More | Higher | Expanded | Highest |
|---|---|---|---|---|---|
| Notebooks | 100 | 200 | 500 | 500 | 500 |
| Sources per notebook | 50 | 100 | 300 | 400 | 600 |
| Chats per day | 50 | 200 | 500 | 1,000 | 5,000 |
| Audio per day | 3 | 6 | 20 | 40 | 200 |
| Video per day | 3 | 6 | 20; cinematic 2 | 40; cinematic 4 | 200; cinematic 20 |
| Reports / Flashcards / Quizzes / Mind Maps | 10 each | 20 each | 100 each | 200 each | 1,000 each |
| Deep Research | 10/month | 3/day | 20/day | 30/day | 200/day |
Google maps Workspace and Education editions to Standard, More, Higher, Expanded or Highest access. Users should check the Plus, Pro, Expanded or Ultra badge near the profile image and confirm licensing with an administrator.
Google describes Gemini Notebook for Enterprise as providing 5× or more notebook artifacts plus advanced sharing, VPC Service Controls, IAM controls, regionalization and enterprise-grade data protection.
Official source: Google work and school account limits ↗
Education users do not automatically receive consumer Pro limits. Google maps each Workspace Education edition or add-on to an access level controlled by the institution.
Swipe horizontally to compare Education access →
| Education edition or add-on | Notebook access level | Notebooks | Sources per notebook | Chats per day | Audio per day |
|---|---|---|---|---|---|
| Education Fundamentals / Education Standard | Standard | 100 | 50 | 50 | 3 |
| Education Plus / Teaching & Learning add-on | More | 200 | 100 | 200 | 6 |
| Google AI Pro for Education | Higher | 500 | 300 | 500 | 20 |
Official sources: Google work and school limits ↗ · Google for Education overview ↗
These are product boundaries, not temporary quota messages.
The documented 500,000-word and 200 MB boundaries remain in place across consumer plans.
NotebookLM cannot access information across multiple notebooks in the same answer.
A larger plan does not make protected, inaccessible or unsupported material readable.
Core notebook creation, chat and generation rely on the online service, even when an exported artifact can be used offline.
A published quota tells you how much capacity exists; it does not tell you how quickly a workflow will consume it. Under compute-based limits, workflow design matters more: prompt complexity, conversation length, source count, feature choice and repeated Studio generations can affect available AI usage.
Prioritize source selection, evidence extraction, citation checking and synthesis where NotebookLM’s source grounding adds the most value.
Replace long chains of exploratory prompts with structured coverage tables, evidence briefs and grouped questions when the task permits.
For Studio outputs, collect changes first and regenerate deliberately instead of spending capacity on repeated small iterations.
Once evidence is grounded, drafting, formatting or continuation may be moved to another AI tool when that preserves scarce NotebookLM capacity.
Related strategy: The $20 Multi-AI Strategy → · AI token and capacity economics →
First identify which clock or ceiling you hit. A five-hour compute warning, weekly ceiling, published daily/monthly quota and fixed capacity limit require different responses; waiting only helps the limits that actually refresh.
Check Settings → Usage and the reset time shown in chat. On the web, use Generate later for eligible Studio artifacts if waiting is acceptable; deferred outputs generate automatically later and can notify you when ready.
Another five-hour window may not restore usable weekly capacity. Check the weekly balance and consider an upgrade or a planned cross-tool handoff for deadline-critical continuation.
Google says daily quotas reset after 24 hours and monthly quotas after 30 days. Do not confuse those clocks with the newer five-hour compute refresh.
Notebook count, sources per notebook and the 500,000-word / 200 MB single-source ceilings do not reset. Delete, split, reorganize or move to a plan with higher published capacity where applicable.
If the file or feature is below its published limit but still fails, use NotebookLM limit troubleshooting →.
This boundary prevents the limits reference from competing with the problem-first troubleshooting guide.
Compute-based usage, numeric capacities, source-type rules and account mappings come from Google. Where two current Google pages describe different layers of the limit system, this guide shows both rather than silently choosing one.
Review date: September 2, 2026 · Recheck after any Google plan, quota or pricing change.
Get the printable planning sheet, current consumer quota reference and five prompts designed to reduce wasted chats and Studio generations.