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ChatGPT vs Undermind

Features, pricing, ratings, and pros and cons, side by side.

ChatGPT logo

ChatGPT

OpenAI's AI assistant for writing, research, coding, image generation and voice chat

4.0(1 review)Freemium
Visit websiteView details
Undermind logo

Undermind

AI research assistant that searches, reads and cites scientific papers for literature reviews

Freemium
Visit websiteView details

Verdict

ChatGPT and Undermind are both AI Assistants tools. ChatGPT scores higher in FinderAtlas's editorial review (8.9 vs 7.7 out of 10). Both have a free plan or trial. Only ChatGPT is available on Windows, macOS and iOS.

Best overall

ChatGPT

  • Students
  • Writers
  • Software Developers
  • Researchers

Choose ChatGPT if

  • You want a tool built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant.
  • One assistant covers text, voice, images, file analysis, search and coding.
  • Free tier lets users try the service without a card.

Choose Undermind if

  • You want a tool built for deep literature reviews, finding hard-to-surface papers on a niche topic, and tracking new publications in a field.
  • Built specifically for scientific literature, with citation-following and full-text reading.
  • In-line citations let users trace claims to source papers.
Best for beginners
ChatGPT
Best for business
ChatGPT

Features

17 features compared.

  • Chat with web search
    ChatGPT
    Available
    Undermind
    Not available
  • Voice mode
    ChatGPT
    Available
    Undermind
    Not available
  • Image generation
    ChatGPT
    Available
    Undermind
    Not available
  • File and image analysis
    ChatGPT
    Available
    Undermind
    Not available
  • Projects
    ChatGPT
    Available
    Undermind
    Not available
  • ChatGPT agent
    ChatGPT
    Available
    Undermind
    Not available
  • Codex
    ChatGPT
    Available
    Undermind
    Not available
  • Connectors and apps
    ChatGPT
    Available
    Undermind
    Not available
  • Conversational Deep Search
    ChatGPT
    Not available
    Undermind
    Available
  • Citation Trail Following
    ChatGPT
    Not available
    Undermind
    Available
  • Cited Reports
    ChatGPT
    Not available
    Undermind
    Available
  • Full-Text Analysis
    ChatGPT
    Not available
    Undermind
    Available
  • Custom Tables
    ChatGPT
    Not available
    Undermind
    Available
  • Relevance Sorting and Filtering
    ChatGPT
    Not available
    Undermind
    Available
  • New Paper Alerts
    ChatGPT
    Not available
    Undermind
    Available
  • Workspaces and Libraries
    ChatGPT
    Not available
    Undermind
    Available
  • Agent Connections
    ChatGPT
    Not available
    Undermind
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    ChatGPT
    Freemium
    Undermind
    Freemium
  • Free plan
    ChatGPT
    Yes
    Undermind
    Yes
  • Starting price
    ChatGPT
    $0
    Undermind
    $0
  • Plans
    ChatGPT
    8 plans
    Undermind
    4 plans

ChatGPT plans

  • Free

    $0

    Limited access to OpenAI's models for everyday use

    • Limited messages
    • Limited file uploads
    • Limited image generation
    • May show ads in some regions

  • Go

    $8/month

    Low-cost plan with more usage than Free

    • More messages than Free
    • More uploads and image generation
    • May show ads

  • Plus

    Most popular

    $20/month

    For individuals who want more capable models and higher limits

    • Access to more advanced models
    • Projects
    • Expanded Codex
    • Higher limits for research and voice

  • Pro 100

    $100/month

    High-volume use for research and coding

    • About 5x Plus usage
    • Everything in Plus

  • Pro 200

    $200/month

    Higher usage than Pro 100

    • About 20x Plus usage
    • Everything in Plus

  • Pro 500

    $500/month

    Highest usage tier

    • Highest usage limits
    • Ultrafast model variants
    • Everything in Plus

  • Business

    $25/user/mo

    For small teams, with a two-seat minimum

    • Shared workspace
    • Admin controls
    • Business data not used for training by default

  • Enterprise

    Custom/user/mo

    For large organizations, priced by contract

    • Single sign-on
    • Admin and security controls
    • Dedicated support

Undermind plans

  • Free

    $0

    Exploratory research with standard usage limits

    • Chat
    • deep searches and reports
    • shared workspaces
    • connect external agents
    • standard usage limits

  • Pro

    Most popular

    $16/month

    Ongoing, serious research

    • Everything in Free
    • newest AI models
    • deeper full-text analysis
    • 10x higher usage limits than Free
    • unlimited workspaces
    • files and paper libraries

  • Team

    $15/user/mo

    Research groups that need shared administration

    • Everything in Pro
    • team member management
    • priority support
    • centralized billing

  • Enterprise

    Custom/custom

    Organizations with security and compliance needs

    • Everything in Team
    • increased compute
    • organization-wide login
    • onboarding seminars
    • admin dashboard
    • custom terms
    • SLA and security review
    • dedicated support

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

ChatGPT
8.9overall
Undermind
7.7overall

  • General Reasoning & Logic

    ChatGPT
    9.0
    Undermind
    Not rated

  • Conversational Fluency

    ChatGPT
    9.2
    Undermind
    Not rated

  • Coding & Data Analysis

    ChatGPT
    8.8
    Undermind
    Not rated

  • Multimodal Processing

    ChatGPT
    9.0
    Undermind
    Not rated

  • Ecosystem & Integrations

    ChatGPT
    8.7
    Undermind
    Not rated

  • Ease of Use

    ChatGPT
    Not rated
    Undermind
    8.0

  • Feature Depth

    ChatGPT
    Not rated
    Undermind
    8.2

  • Value for Money

    ChatGPT
    Not rated
    Undermind
    7.8

  • Performance & Speed

    ChatGPT
    Not rated
    Undermind
    7.5

  • Documentation & Support

    ChatGPT
    Not rated
    Undermind
    7.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

ChatGPT

Pros

  • One assistant covers text, voice, images, file analysis, search and coding
  • Free tier lets users try the service without a card
  • Apps for web, iOS, Android, macOS and Windows with synced history
  • Large ecosystem of connectors, projects and agent features
  • Plans range from $8 to $500 per month, so users can match spend to usage

Cons

  • Free and Go usage limits are low and may include ads
  • Pricing and model lineup change often, which makes limits hard to compare over time
  • Answers can be wrong and need checking, especially for facts and citations
  • The top Pro tiers cost $100 to $500 per month

Undermind

Pros

  • Built specifically for scientific literature, with citation-following and full-text reading.
  • In-line citations let users trace claims to source papers.
  • Free tier available, with paid Pro at $16 per month billed annually.
  • Alerts and libraries support ongoing tracking of a field, not just one-off searches.
  • Can be connected to Claude, ChatGPT and other agents.

Cons

  • Exact usage limits are not published; Pro is only described as 10x Free.
  • Not designed for general web research, news or non-technical topics.
  • Web-only; no iOS or Android app was found.
  • Published benchmark results are vendor-reported.

Platforms

  • Web
    ChatGPT
    Supported
    Undermind
    Supported
  • Windows
    ChatGPT
    Supported
    Undermind
    Not supported
  • macOS
    ChatGPT
    Supported
    Undermind
    Not supported
  • iOS
    ChatGPT
    Supported
    Undermind
    Not supported
  • Android
    ChatGPT
    Supported
    Undermind
    Not supported
  • API
    ChatGPT
    Not supported
    Undermind
    Not supported
  • Browser Extension
    ChatGPT
    Not supported
    Undermind
    Not supported

Integrations

ChatGPT

2 integrations
  • Gmail
  • MCP connectors

Undermind

2 integrations
  • Claude
  • ChatGPT

Company

  • Company
    ChatGPT
    OpenAI
    Undermind
    Undermind
  • Founded
    ChatGPT
    2015
    Undermind
    Not listed
  • Headquarters
    ChatGPT
    San Francisco, CA
    Undermind
    Not listed
  • Listing
    ChatGPT
    Claimed
    Undermind
    Claimed

Frequently asked questions

Is ChatGPT better than Undermind?

It depends on your workflow. ChatGPT is built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant. Undermind is built for deep literature reviews, finding hard-to-surface papers on a niche topic, and tracking new publications in a field.

What are the key feature differences between ChatGPT and Undermind?

ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat. Undermind: AI research assistant that searches, reads and cites scientific papers for literature reviews. ChatGPT is rated 4.0/5 from 1 user review.

Does ChatGPT or Undermind have a free plan?

Yes, both do. ChatGPT is freemium and Undermind is freemium, and each has a free plan or trial.

Which is cheaper, ChatGPT or Undermind?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.