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  • Knowster ×
  • ChatGPT ×

Comparator · Chat assistants

Starting price$39/mo · $20/mo
Free tieryes · yes
Plans documented5 · 10
Platforms1 · 4
Comparison of Knowster, ChatGPT
Visit website for Knowster (opens in a new tab) Visit website for ChatGPT (opens in a new tab)
Category Chat assistants Chat assistants
Main use cases
  • Customer support chatbot on a small business site
  • FAQ bot built from existing pages
  • Lead capture from site visitors
  • Ecommerce or SaaS site Q&A
  • Drafting and editing text
  • Answering general questions
  • Summarizing documents
  • Getting help with code
  • Brainstorming ideas
Best for Small businesses, Site owners without coding resources Knowledge workers, Students, Developers, General consumers
Platforms Web Web, Desktop, Mobile, API
Pricing model Freemium Freemium
Pricing

Free $0 (1 site, 100 messages/mo); Starter $39/mo; Pro $99/mo; Scale $299/mo, billed monthly; Enterprise custom. Top-up pack of 1,000 messages $20.

Checked Sep 29, 2026. Official pricing ↗

Individual plans: Free, Go, Plus and Pro; organization plans: Business and Enterprise. Prices were displayed in a non-US currency when we checked, so US prices are not confirmed here — see official pricing.

Checked Sep 30, 2026. Official pricing ↗

Key features
  • Trains on website pages and re-reads them on a schedule
  • Google Drive folder source (Docs, Sheets, text, markdown)
  • Pinned hand-written answers
  • Lead capture with email, Google Sheets and webhook options
  • Analytics dashboard on paid plans
  • Install guides for WordPress, Shopify, Wix, Squarespace and others
  • Chat with file uploads and data analysis
  • Web search and deep research
  • Image generation
  • Voice conversations
  • Projects, memory and custom GPTs
  • Codex coding agent
Pros
  • Free plan with no time limit and no credit card
  • Month-to-month plans, 14-day money-back guarantee
  • Answers in the visitor's language per the homepage
  • Top-up pack avoids automatic overage charges
  • Free plan available for everyday chat
  • Apps for web, iOS, Android and desktop
  • Wide feature set in one product (search, images, voice, files)
  • Business and Enterprise plans with SSO and admin controls
Limitations
  • Free plan limited to 1 website, 100 messages and 10 leads per month
  • Knowster branding on Free and Starter
  • Analytics dashboard not on Free
  • PDF and Word files are not read from Google Drive
  • No annual billing yet
  • Free plan limits uploads, image generation, voice and deep research
  • The lower-cost Go plan may include ads, per OpenAI's pricing page
  • Can produce inaccurate or outdated information that needs checking
  • API usage is billed separately from ChatGPT subscriptions
Ratings
Editorial
Not yet reviewed
Users
No user reviews yet
Editorial
Not yet reviewed
Users
No user reviews yet
Review status Listed

Verified Sep 29, 2026

Listed

Verified Sep 30, 2026