Chat assistants AI tools: privacy compared for small businesses (10 tools)

We checked 10 chat assistants tools against each vendor’s own pages. 7 train on your data by default on at least one plan, and 8 have a plan that isn’t used for training by default. Every answer has a source link and the date we checked it.

10 tools · Updated October 24, 2026

• CH3 plans checked

  ChatGPT

  OpenAI

  • Used for training: Free, Plus, and Pro: used, unless you turn it off.
  • Not used for training: ChatGPT Business: not used by default.
  • Not used for training: ChatGPT Enterprise: not used by default, unless your organization opts in.
  Checked October 23, 2026ShareSave
• CL2 plans checked

  Claude

  Anthropic

  • Not used for training: Free, Pro, and Max: not used, unless you allow it.
  • Not used for training: Team and Enterprise: not used by default.
  Checked October 23, 2026ShareSave
• GE2 plans checked

  Gemini

  Google

  • Used for training: Personal Google Account: used while Keep Activity is on.
  • Not used for training: Google Workspace (business accounts): not used without your permission.
  Checked October 23, 2026ShareSave
• MC2 plans checked

  Microsoft Copilot

  Microsoft

  • ?Depends: Copilot app, personal Microsoft account: your choice: you can opt out.
  • Not used for training: Microsoft 365 Copilot (work account): not used.
  Checked October 23, 2026ShareSave
• GR2 plans checked

  Grok

  SpaceXSI

  • Used for training: Grok app and Grok.com (personal): used, unless you turn it off.
  • Not used for training: SpaceXSI API (business and enterprise): not used.
  Checked October 23, 2026ShareSave
• PE2 plans checked

  Perplexity

  Perplexity AI

  • Used for training: Free, Pro, and Max: used by default, unless you turn it off.
  • Not used for training: Enterprise Pro and Enterprise Max: not used.
  Checked October 23, 2026ShareSave
• MA1 plan checked

  Meta AI

  Meta

  • Used for training: Meta AI (personal accounts): used, with no opt-out described.
  Checked October 23, 2026ShareSave
• DE1 plan checked

  DeepSeek

  DeepSeek

  • Used for training: DeepSeek app and website: used, with no opt-out setting named.
  Checked October 23, 2026ShareSave
• MV2 plans checked

  Mistral Vibe (Le Chat)

  Mistral AI

  • Used for training: Free, Pro, and Team: used, unless you opt out.
  • Not used for training: Enterprise: not used by default.
  Checked October 23, 2026ShareSave
• DA1 plan checked

  Duck.ai

  DuckDuckGo

  • Not used for training: Duck.ai (all users): not used.
  Checked October 24, 2026ShareSave