ChatGPT is OpenAI's flagship conversational AI, built on the GPT-4o and GPT-4 model family. It handles everything from drafting emails and summarizing documents to writing code and analyzing data. The free tier runs on GPT-4o mini, while Plus subscribers get access to GPT-4o, advanced reasoning with o1, image generation with DALL-E, and web browsing. The tool excels at multi-turn conversations where context matters — you can iterate on a piece of writing, debug code step-by-step, or explore a topic in depth across dozens of messages. Custom GPTs let users build specialized assistants for recurring workflows, and the platform integrates with plugins for tasks like booking travel or searching the web. ChatGPT has become the default general-purpose AI assistant for millions of users, from students writing essays to developers prototyping features. Its strength is breadth: it handles most tasks competently, even if specialized tools sometimes outperform it in narrow domains.

What the community says

ChatGPT holds roughly 68% of the AI chatbot market and draws overwhelmingly positive sentiment — nearly 90% positive across verified review platforms — with users on Reddit and Capterra praising its versatility, ease of use, and broad feature set including Canvas, voice, image generation, and memory. Developers and professionals highlight its strength in multi-turn context and deep research workflows. Key criticisms center on accuracy issues requiring fact-checking, aggressive pricing tiers that limit free users, and privacy concerns around training data use by default. Some users also note that advanced reasoning modes can take 30-60 seconds on complex tasks, breaking conversational flow. Based on community discussions from Reddit, Hacker News, and software review platforms over the past 12 months.