OpenAI GPT-5 is out. I didn't get the embargo because I'm a bit hard on OpenAI at times (which I think is good), but I've read all the early reviews: from Ethan Mollick, Tyler Cowen, Every, Latent Space, METR, Artificial Analysis, and a couple of others. I've watched the 1-hour-long demo, read the four blog posts that OpenAI put out, and the model's system card PDF.
I've watched the 1-hour-long demo, read the four blog posts that OpenAI put out, and the model's system card PDF. I can summarize GPT-5's main improvements in one paragraph: It's cheap, fast at times, and available to all (most people think GPT-4o is state-of-the-art. ); it's better across benchmarks, dominating the price-performance Pareto frontier (some think the upgrade is underwhelming, though, especially compared to Anthropic's Claude 4/4.
); it's better across benchmarks, dominating the price-performance Pareto frontier (some think the upgrade is underwhelming, though, especially compared to Anthropic's Claude 4/4.