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Side-by-side comparison · Research & Search

ChatGPT Deep Research vs NotebookLM vs Wokelo

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

ChatGPT Deep Research

3.8

From $8/mo

Best overall

NotebookLM

4.5

From $4.99/mo

Wokelo

3.8

Free to start

Comparing 3 tools, the maximum.

At a glance

Pick it if: ChatGPT users who want a proper write-up on a question and are happy to wait a few minutes for it.

Best overallBest valueEasiest to use

Pick it if: Anyone who needs to understand or explain a set of documents they don't have time to read properly.

Pick it if: Private equity, venture, investment banking, consulting and corporate development teams that research companies and markets every week.

Overview

AttributeChatGPT Deep ResearchNotebookLMWokelo
In one lineChatGPT's research mode, which browses for you and writes up a cited report.Upload your own documents and ask questions that only draw on those sources.AI research agents that write company, market and due diligence reports for dealmakers.
Pricing modelFreemiumFreemiumPaid
Starting price$8/mo$4.99/moSee website
Free plan Yes Yes No
Works with Claude Code No No Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeChatGPT Deep ResearchNotebookLMWokelo
Overall rating3.84.5Winner3.8
Ease of useHow quickly someone non-technical gets value from it.
4.0
5.0
4.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.0
4.5
4.0
Output qualityHow good the results are before you fix them.
4.5
4.0
4.0
Value for moneyWhat you get for the price, including the free plan.
3.5
5.0
3.0
Speed & reliabilityHow fast it is and how often it falls over.
3.0
4.0
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeChatGPT Deep ResearchNotebookLMWokelo
Access & platform
Free plan Yes Yes No
Mobile app Yes Yes–
Desktop app Yes No–
Browser extension Yes Yes–
API access Yes– Yes
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes–
Makes images Yes Yes No
Makes video Yes Yes No
Writes code Yes No No
Runs agents or automations Yes No Yes
Learns your brand or style Yes No–
Works in many languages Yes Yes–
Capabilities score16/ 1711/ 176/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeChatGPT Deep ResearchNotebookLMWokelo
Plans

Free

Free

Seeing what a report looks like.

FreeOur pick

Free

Almost everyone. Try this before paying for anything.

EnterpriseOur pick

Custom

Investment, consulting and corporate strategy teams.

Go

$8/mo

Casual users who want more chat, not more research.

Google AI Plus

$4.99/mo

People who hit the free limits now and then.

PlusOur pick

$20/mo

Anyone who wants deep research weekly.

Google AI Pro

$19.99/mo

Heavy users who also want Gemini Pro and Deep Research.

Pro

From $100/mo

Heavy users who run research daily.

Google AI Ultra

From $99.99/mo

Power users who want the top of everything Google offers.

Which plan to pickIf you have Plus already, you are set; its deep research allowance covers most people. Do not buy ChatGPT just for research unless you also want the rest of it, because Perplexity Pro costs less and is faster. Pro is only worth it if you run reports every day.Stay on Free until it stops you doing something. If that happens, Google AI Pro is the sensible step because it also upgrades Gemini and Deep Research, which you will probably want anyway. AI Plus is a cheap middle step if NotebookLM is all you care about.There is only a sales-led contract. Ask for a trial on a live deal or project before you sign, and check which premium data sources are included at your price.

Key features

AttributeChatGPT Deep ResearchNotebookLMWokelo
Standout features
  • Clarifying questions
  • Long, cited reports
  • Runs in the background
  • Your own files and apps
  • Visual output
  • Agent mode
  • Grounded answers
  • Many source types
  • Audio and Video Overviews
  • Studio outputs
  • Discover sources
  • Sharing
  • Research reports
  • Premium data
  • Agent builder and marketplace
  • Slides and Q&A
  • API and MCP

Pros and cons

AttributeChatGPT Deep ResearchNotebookLMWokelo
Pros
  • Clarifying questions up front mean fewer wasted runs
  • Among the most complete and well-structured reports of the three
  • Runs in the background and notifies you when done
  • Can bring your own files and connected apps into the research
  • Exports to PDF with charts and tables
  • Answers only from your sources and cites the exact passage
  • Free plan is big enough for most small businesses
  • Accepts PDFs, Docs, websites, YouTube and audio as sources
  • Audio Overviews are a clever way to get people to engage with research
  • Simple enough that you can hand it to anyone on the team
  • Cited reports that hold up better to checking than a general chatbot's
  • Premium private-market data built in
  • Builds PowerPoint slides from the research
  • Custom agents that follow your firm's process
  • Strong security and hosting options
Cons
  • Slowest of the three; 10 to 30 minutes is normal
  • Free and Go allowances are tiny and described only as limited
  • Reports run long and occasionally cite weak sources
  • Pro usage allowances have been cut for new subscribers
  • Will not research the open web unless you explicitly ask it to find sources
  • Answers can be surface-level on dense material; you still need to read the key parts
  • Audio Overviews take a few minutes and sound alike after a while
  • No way to script or automate it; everything happens in the browser
  • Expensive and sales-led, with no self-serve plan
  • Few independent reviews to judge it on
  • Thinner data on small private companies
  • Overkill for occasional market questions

Who each one is for

AttributeChatGPT Deep ResearchNotebookLMWokelo
Best for
  • Market and industry scans
  • Comparing products or suppliers
  • Background briefs on a new topic
  • Reading lots of sources at once
  • Summarising long reports
  • Questioning a set of PDFs
  • Turning research into a podcast
  • Study guides and briefings
  • First-pass due diligence on a target
  • Industry and market landscapes
  • Screening and sourcing acquisition targets
  • Competitor and peer comparisons
  • Drafting investment memos and client decks
You'll find it used by
  • ChatGPT subscribers
  • Marketers
  • Founders
  • Analysts
  • Consultants
  • Marketers
  • Students
  • Small business owners
  • Private equity firms
  • Venture capital firms
  • Investment banks
  • Management consultants
  • Corporate development teams

Questions people ask

Which is better, ChatGPT Deep Research, NotebookLM or Wokelo?

NotebookLM scores highest overall in our ratings (ChatGPT Deep Research 3.8/5, NotebookLM 4.5/5 and Wokelo 3.8/5). ChatGPT Deep Research is best for market and industry scans and comparing products or suppliers. NotebookLM is best for summarising long reports and questioning a set of PDFs. Wokelo is best for first-pass due diligence on a target and industry and market landscapes.

Which is cheaper, ChatGPT Deep Research, NotebookLM or Wokelo?

ChatGPT Deep Research: There's a free plan, and paid plans start at $8/mo. NotebookLM: There's a free plan, and paid plans start at $4.99/mo. Wokelo: Pricing isn't published; check the vendor's site for a quote.

Which is easier to use, ChatGPT Deep Research, NotebookLM or Wokelo?

NotebookLM rates highest for ease of use in our scores. Anyone who needs to understand or explain a set of documents they don't have time to read properly.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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