OpenAI launched its new GPT-5 series models yesterday.
The main thing is (as Sam Altman had foreshadowed) some time back that there is no model picker. GPT decides what model to use based on a bunch of factors.
Simon Wilson has a nice write up about the model here. I personally have just started using it. I think I prefer Claude, personally, but your mileage may vary.
And now for a little story. Copilot was one of the first products that I was using - mainly because it had generous free tier limits. But I got frustrated with it soon enough. It just did not give me good enough answers, and I had no way to select or know what model was giving the answer.
So now you know how I feel about them removing the model picker.
There have been two sets of reviews I have read about ChatGPT.
The first set really like it. Like this review by Ethan Mollick
I asked GPT-5 Thinking (I trust the less powerful GPT-5 models much less) “generate 10 startup ideas for a former business school entrepreneurship professor to launch, pick the best according to some rubric, figure out what I need to do to win, do it.” I got the business idea I asked for. I also got a whole bunch of things I did not: drafts of landing pages and LinkedIn copy and simple financials and a lot more. I am a professor who has taught entrepreneurship (and been an entrepreneur) and I can say confidently that, while not perfect, this was a high-quality start that would have taken a team of MBAs a couple hours to work through. From one prompt.
The other is that this begins the enshittification of consumer AI chat products.
The noise on Reddit and elsewhere was so loud that ChatGPT had to bring back 4o as an option because people missed it.
For months, ChatGPT fans have been waiting for the launch of GPT-5, which OpenAI says comes with major improvements to writing and coding capabilities over its predecessors. But shortly after the flagship AI model launched, many users wanted to go back