OpenAI just lost the remainder of loyal users they had left.
Starting in December, ChatGPT and Codex will share the SAME usage limits across Plus, Pro, and Business plans.
Both will draw from one shared token allowance, meaning heavy Codex usage leaves you with less usage for ChatGPT, and vice versa.
Instant chat won’t count toward the limit.
So basically, separate ChatGPT and Codex limits are gone.