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ChatGPT vs Skim

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

Verdict

ChatGPT is listed under AI Assistants and Skim under Productivity. ChatGPT scores higher in FinderAtlas's editorial review (8.9 vs 7.6 out of 10). Only ChatGPT has 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 Skim if

  • You want a tool built for quick pre-signature review of leases, contractor quotes and terms of service, drafting a reply to push back on a clause.
  • Simple one-off $9 price covering up to 3 documents, with no subscription.
  • No account or prompt writing required.
Best value
ChatGPT
Best for beginners
Skim
Best for business
ChatGPT

Features

15 features compared.

  • Chat with web search
    ChatGPT
    Available
    Skim
    Not available
  • Voice mode
    ChatGPT
    Available
    Skim
    Not available
  • Image generation
    ChatGPT
    Available
    Skim
    Not available
  • File and image analysis
    ChatGPT
    Available
    Skim
    Not available
  • Projects
    ChatGPT
    Available
    Skim
    Not available
  • ChatGPT agent
    ChatGPT
    Available
    Skim
    Not available
  • Codex
    ChatGPT
    Available
    Skim
    Not available
  • Connectors and apps
    ChatGPT
    Available
    Skim
    Not available
  • Five red flags
    ChatGPT
    Not available
    Skim
    Available
  • Plain-English rewrite
    ChatGPT
    Not available
    Skim
    Available
  • Paste-ready reply
    ChatGPT
    Not available
    Skim
    Available
  • PDF upload or pasted text
    ChatGPT
    Not available
    Skim
    Available
  • No account
    ChatGPT
    Not available
    Skim
    Available
  • Free sample
    ChatGPT
    Not available
    Skim
    Available
  • One-time pricing
    ChatGPT
    Not available
    Skim
    Available

Pricing

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

  • Pricing model
    ChatGPT
    Freemium
    Skim
    Paid
  • Free plan
    ChatGPT
    Yes
    Skim
    No
  • Starting price
    ChatGPT
    $0
    Skim
    $9
  • Plans
    ChatGPT
    8 plans
    Skim
    1 plan

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

Skim plans

  • Skim Check

    Most popular

    $9/one-time

    One payment covering up to 3 documents, no account needed.

    • Five red flags per document
    • Rewrite for each flag
    • Paste-ready reply
    • Up to 3 documents
    • Stripe Checkout

Our ratings

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

ChatGPT
8.9overall
Skim
7.6overall

  • General Reasoning & Logic

    ChatGPT
    9.0
    Skim
    Not rated

  • Conversational Fluency

    ChatGPT
    9.2
    Skim
    Not rated

  • Coding & Data Analysis

    ChatGPT
    8.8
    Skim
    Not rated

  • Multimodal Processing

    ChatGPT
    9.0
    Skim
    Not rated

  • Ecosystem & Integrations

    ChatGPT
    8.7
    Skim
    Not rated

  • Clause Detection

    ChatGPT
    Not rated
    Skim
    7.0

  • Output Usefulness

    ChatGPT
    Not rated
    Skim
    7.5

  • Ease of Use

    ChatGPT
    Not rated
    Skim
    8.5

  • Pricing Clarity

    ChatGPT
    Not rated
    Skim
    9.0

  • Transparency

    ChatGPT
    Not rated
    Skim
    6.0

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

Skim

Pros

  • Simple one-off $9 price covering up to 3 documents, with no subscription
  • No account or prompt writing required
  • Output includes a rewrite and a ready-to-send reply, not just a list of risks
  • Free sample report to judge quality before paying
  • Privacy page clearly states what is and is not stored

Cons

  • Only the first 20,000 characters of a document are analyzed
  • Document text goes to xAI, whose retention Skim does not control
  • Fixed five-flag output with no follow-up chat
  • Operator, company and contact details are not disclosed on the site
  • Not legal advice, and no independent reviews found

Platforms

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

Integrations

ChatGPT

2 integrations
  • Gmail
  • MCP connectors

Skim

No integrations listed.

Company

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

Frequently asked questions

Is ChatGPT better than Skim?

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. Skim is built for quick pre-signature review of leases, contractor quotes and terms of service, drafting a reply to push back on a clause.

What are the key feature differences between ChatGPT and Skim?

ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat. Skim: Find the five contract clauses most likely to cost you money before you sign. ChatGPT is rated 4.0/5 from 1 user review.

Does ChatGPT or Skim have a free plan?

ChatGPT has a free plan or trial; Skim is paid only.

Which is cheaper, ChatGPT or Skim?

ChatGPT starts at $0 and Skim starts at $9. See the pricing table above for what each tier includes.