OpenAI is an artificial intelligence research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit OpenAI Inc.
ChatGPT Free provides access to GPT-4o mini, allowing users to explore AI's potential for everyday tasks. It offers limited file uploads, data analysis, and voice mode, along with custom GPTs and code edits.
Plus
ChatGPT Plus expands capabilities with enhanced access to advanced features, including extended limits, voice modes, deep research models, GPT-4.5 preview, task creation, Sora video generation, and new feature testing.
Pro
Designed for power users and developers, includes API credits, access to advanced tools like Code Interpreter, and higher usage limits across AI features.