OpenAI’s newest model, GPT-4.5, is coming sooner than we expected. A new reference has been spotted on ChatGPT’s Android app that points to a model called “GPT-4.5 research preview.” At the moment, OpenAI offers several models, including GPT-4o, GPT-4o with scheduled tasks, o1, o3-mini, and o3-mini-high. This can be confusing due to the variety of choices. As a result, OpenAI CEO Sam Altman recently announced that ChatGPT will simplify its model names and release versions like GPT-4.5, GPT-5, and so on. Today, some users have spotted an announcement in the ChatGPT beta app that states, “Try the GPT-4.5 research preview—Pro users now have access to our newest, largest model.” Clicking on the alert does nothing for now, but this seems to confirm that GPT-4.5 is close to release and may soon roll out to more users. However, the catch is that it would be available to Pro subscribers only, at least initially. ChatGPT Pro, which costs $200 per month, offers fewer limitations than $20 Plus or Free plans. Beyond the references to GPT-4.5, AI researcher Tibor Blaho has spotted a few additional experiments in the ChatGPT web interface.

Full report : OpenAI’s GPT 4.5 spotted in Android beta, launch imminent.