OpenAI Announces Some ChatGPT Features Will Share Usage Limits With Codex

According to TechFlow, on November 1, OpenAI announced that starting in December, usage limits for ChatGPT Plus, Pro, and Business plans will be shared between ChatGPT and Codex. OpenAI is integrating Work's agentic capabilities into the main ChatGPT interface. Usage is measured in tokens, and the amount consumed depends on the model and task complexity; more complex tasks consume more. Instant chat does not count against this shared limit. OpenAI expects that most users will not need to wait for usage limit resets more often than they currently do.

Source: TechFlow