Artificial intelligenceUnit 29 min read

AI tools to generate and analyze text

Chatbots, document analyzers, and proofreaders: a map of the AI tools that work with text and what each is for.

Chatbots: the general-purpose assistants

  • ChatGPT (OpenAI) · Generates and transforms text, drafts, summarizes, and analyzes. Integrates image generation and web browsing in one interface.
  • Copilot (Microsoft) · Assistant built into Microsoft 365 (Word, Excel, Outlook). Strong for professional environments already on that suite.
  • Gemini (Google) · Versatile model integrated with the Google ecosystem (Search, Docs, Sheets). Handy for searching and creating without leaving those apps.
  • Claude (Anthropic) · Stands out for handling long documents, complex reasoning, and a safety-first approach ("constitutional AI"). Strong for deep analysis and file work.
  • Perplexity · Combines a search engine and a generative model: it answers with verified, cited information in real time instead of a list of links.

Document and video analysis

When the problem is not writing but digesting long information, these tools summarize and answer questions about the material.

  • Summarize.tech · Summarizes long videos from platforms like YouTube, pulling key ideas without watching in full.
  • ChatPDF · Lets you "chat" with a PDF: you ask questions and it answers without manually reviewing the whole document.
  • Humata · Analyzes complex documents (reports, papers, manuals) and gives precise answers based on their content.

Translation and proofreading

  • DeepL · High-quality translation that respects context and nuance; sounds more natural than traditional translators.
  • LanguageTool · Fixes grammar, spelling, and style across several languages, and suggests clarity and cohesion improvements.

How to choose

There is no single "best" tool in the abstract: it depends on the task. For drafting and chatting, a general chatbot. For digesting a specific document, an analyzer. For communicating in another language, a specialized translator. Many have free tiers, so the best way to decide is to try a real case from your business.

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