ChatGPT Free
OpenAI
Free to use on web and app; as of 2026-08-06, text chat has no usage cap, while image generation, file upload, and voice each have separate limits
The free plan only has access to the smallest model (GPT-5.6 Luna). Deep Research, Agent mode, Canvas, and Advanced Voice all require a paid plan. As of 2026-02-09, some responses shown to free users in the US carry ads at the bottom.
GPT-5.6 Luna