AI tools worth knowing

• AssistantsFreemium

  ChatGPT

  by OpenAI

  OpenAI's general-purpose assistant for chat, writing, analysis, images and voice.

  Visit ChatGPT (opens the maker's site)
• AssistantsFreemium

  Claude

  by Anthropic

  Anthropic's assistant, widely used for long-document analysis, careful writing and coding help.

  Visit Claude (opens the maker's site)
• AssistantsFreemium

  Gemini

  by Google

  Google's assistant, integrated with Google Workspace and Android.

  Visit Gemini (opens the maker's site)
• AssistantsFreemium

  Microsoft Copilot

  by Microsoft

  Microsoft's assistant across Windows, Edge and Microsoft 365.

  Visit Microsoft Copilot (opens the maker's site)
• AssistantsFreemium

  Perplexity

  by Perplexity AI

  An answer engine that searches the web and cites the pages it used.

  Visit Perplexity (opens the maker's site)
• AssistantsFreemium

  Le Chat

  by Mistral AI

  Mistral's assistant, with web search and document tools.

  Visit Le Chat (opens the maker's site)
• AssistantsFreemium

  Grok

  by xAI

  xAI's assistant, available on the web and inside X.

  Visit Grok (opens the maker's site)
• AssistantsFreemium

  NotebookLM

  by Google

  Upload your own documents and ask questions that are answered from them, with citations.

  Visit NotebookLM (opens the maker's site)

Reviewed October 2026. Pricing models and features change often, so check the maker's site before you decide. Nanofuze is not paid to list any tool.