At launch, GPT-5's Thinking model was limited to 200 messages per week for Plus subscribers, now Altman says the rate limits have been increased to 3,000 a week. He also notes, "Context limit for GPT-5 Thinking is 196k tokens. We may have to update rate limits over time depending on usage."

The launch of OpenAI’s GPT-5 on the 7th of August was meant to bring improvements in writing, coding, healthcare