OpenAI will combine usage quotas for ChatGPT and Codex across its Plus, Pro, and Business paid plans starting in December. Under the new rules, the two services will no longer maintain separate limits but instead draw from a single shared quota pool. The adjustment aligns with OpenAI's integration of ChatGPT Work's agent capabilities into the main ChatGPT platform, enabling users to execute more complex tasks directly within the interface. Following the change, quota consumption for both ChatGPT and Codex will be uniformly calculated by token usage, with specific amounts varying based on the selected model and task complexity.