Alexey Shabanov / TestingCatalog:Internal OpenAI code suggests a tiered GPT-5 rollout: free users get basic GPT-5, Plus users get advanced reasoning, and Pro gets research-level performance — What we know so far: Free users will get access to GPT-5, Plus to GPT-5 with reasoning, while Team and Pro users will get GPT-5 Pro with a research-grade intelligence.