Which AI apps do you use the most?

A viral discussion on the r/OpenAI subreddit, sparked by user Sohaibahmadu, has surfaced a real-world snapshot of the AI tools that have become essential to daily workflows. The simple question, "Which AI apps do you use the most?" prompted hundreds of professionals to detail their go-to platforms, cutting through marketing hype to reveal practical adoption. The consensus points to a dominant trio: OpenAI's ChatGPT for its versatility and plugin ecosystem, Anthropic's Claude for its superior long-context handling and nuanced writing, and Google's Gemini for its deep integration with the Google Workspace suite.

Beyond the major players, the thread highlighted specialized tool usage that defines modern productivity. Perplexity AI was frequently cited as the preferred agent for real-time, web-based research, leveraging its RAG (retrieval-augmented generation) capabilities to provide sourced answers. Users clearly delineated their tools by purpose: ChatGPT for brainstorming and initial drafts, Claude for refining complex documents, and coding-specific assistants like GitHub Copilot or Cursor for development tasks. This organic survey reveals a maturing market where professionals are strategically assembling a multi-model toolkit rather than relying on a single all-purpose AI.