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Side-by-side comparison · Presentations & Docs

ChatPDF vs Gamma vs Plus AI

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

ChatPDF

3.9

From $0

Best overall

Gamma

4.5

Free to start

Plus AI

4.0

From $10/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Anyone who needs quick answers from a PDF, like a manual, report or contract, without reading the whole thing.

Best overallBest value

Pick it if: Anyone who dreads building slides and would rather start from a finished draft than a blank template.

Pick it if: Consultants, salespeople and marketers who build decks in Google Slides or PowerPoint every week.

Overview

AttributeChatPDFGammaPlus AI
In one lineUpload a PDF and ask it questions, with answers that point to the page they came from.Paste an outline and get a well-designed deck, doc or web page in minutes.Makes and edits slides with AI inside Google Slides and PowerPoint.
Pricing modelFreemiumFreemiumPaid
Starting price$0Free$10/mo
Free plan Yes Yes No
Works with Claude Code Yes Yes Yes

Rating breakdown

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

AttributeChatPDFGammaPlus AI
Overall rating3.94.5Winner4.0
Ease of useHow quickly someone non-technical gets value from it.
5.0
5.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
3.5
4.5
4.0
Output qualityHow good the results are before you fix them.
3.5
4.5
4.0
Value for moneyWhat you get for the price, including the free plan.
3.5
4.0
3.5
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.5
4.0

Feature comparison

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

AttributeChatPDFGammaPlus AI
Access & platform
Free plan Yes Yes No
Mobile app No Yes–
Desktop app Yes No–
Browser extension No No No
API access Yes Yes Yes
Teams & business
Team workspace No Yes Yes
Enterprise plan or SSO– Yes Yes
Connects to other apps No Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images–––
Makes images No Yes Yes
Makes video No No No
Writes code No No No
Runs agents or automations No Yes–
Learns your brand or style– Yes Yes
Works in many languages Yes Yes–
Capabilities score5/ 1711/ 177/ 17

Pricing

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

AttributeChatPDFGammaPlus AI
Plans

Free

$0

The occasional document.

Free

Free

Testing whether the output suits you.

Basic

$10/mo billed yearly, or $15 monthly

Occasional decks for one person.

PlusOur pick

About $19.99/mo, cheaper billed yearly

People who read lots of documents.

PlusOur pick

See website

Individuals who make a few decks a month.

ProOur pick

$20/mo billed yearly, or $25 monthly

People who build decks every week.

Pro

See website

People who present weekly or want analytics and the API.

Team

$30/mo billed yearly, or $40 monthly

Teams that need on-brand decks.

Ultra

See website

Heavy users running Gamma all day.

Max

$200/mo billed yearly, or $240 monthly

Heavy users who don't want to count credits.

Business

See website

Companies that need admin controls and single sign-on.

Enterprise

Custom

Large companies.

Which plan to pickFree is fine for a document or two a day. Before paying for Plus, try NotebookLM, which is free, or use Claude or ChatGPT if you already pay for one.Use the free credits to make two or three decks and judge the output. If you'll keep using it, Plus is the sensible step because it removes the badge and refreshes credits monthly. Only move to Pro if you want the API, custom domains or viewer analytics.Pro is the sweet spot for most people because it adds document uploads and the MCP server. Move to Team only when several people need decks on the same brand template. Prices are per user.

Key features

AttributeChatPDFGammaPlus AI
Standout features
  • Chat with a document
  • Clickable citations
  • Folders
  • Many file types and languages
  • Share by link
  • Desktop app and API
  • Generate from anything
  • Cards, not slides
  • Gamma Agent
  • Themes and brand kit
  • Export anywhere
  • API and connectors
  • Prompt to deck
  • Document to slides
  • Edit existing slides
  • Brand templates
  • MCP server and API

Pros and cons

AttributeChatPDFGammaPlus AI
Pros
  • About as simple as AI tools get
  • No sign-up needed for the basics
  • Citations make answers easy to check
  • Works with Word and PowerPoint files too
  • Has an API
  • Fastest route from notes to a presentable deck
  • Designs look polished without any design skill
  • One file works as a deck, document or web page
  • The agent makes rewrites and restyles painless
  • API and connectors mean it fits into automated workflows
  • Output is a normal Slides or PowerPoint file you can keep editing
  • Good at editing existing decks, not just new ones
  • Brand templates for teams
  • MCP server and API for automation
Cons
  • Free plan is limited to 2 documents a day
  • NotebookLM does more for free
  • Answers can miss details in long or complex documents, so check the citations
  • Paid plan price isn't shown until you upgrade
  • Free credits are a one-off, so the free plan runs out
  • Hard to keep strictly on brand across many decks
  • Credits drain quickly if you regenerate images often
  • Exports to PowerPoint don't always keep the layout intact
  • No free plan; the trial needs a card
  • Credit-based, and complex decks use credits quickly
  • Branding features are locked to the Team plan
  • Charts from complex data often need manual fixing

Who each one is for

AttributeChatPDFGammaPlus AI
Best for
  • Quick questions about a single PDF
  • Summarising reports and manuals
  • Asking across a folder of documents
  • Sharing a document Q&A with someone
  • Pitch decks from notes
  • Internal updates and proposals
  • Turning a document into slides
  • Simple one-page websites
  • Decks that must stay in Google Slides or PowerPoint
  • Turning a document into slides
  • Fixing or rewriting existing slides
  • Team decks on a company template
You'll find it used by
  • Students
  • Researchers
  • Small business owners
  • Consultants
  • Office workers
  • Founders
  • Marketers
  • Consultants
  • Sales teams
  • Educators
  • Consultants
  • Sales teams
  • Marketers
  • Founders
  • Agencies

Questions people ask

Which is better, ChatPDF, Gamma or Plus AI?

Gamma scores highest overall in our ratings (ChatPDF 3.9/5, Gamma 4.5/5 and Plus AI 4.0/5). ChatPDF is best for quick questions about a single PDF and summarising reports and manuals. Gamma is best for pitch decks from notes and internal updates and proposals. Plus AI is best for decks that must stay in Google Slides or PowerPoint and turning a document into slides.

Which is cheaper, ChatPDF, Gamma or Plus AI?

ChatPDF: There's a free plan, and paid plans start at $0. Gamma: It's free to use. Plus AI: There's no free plan. Paid plans start at $10/mo.

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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