
GPT4oand

This website lets you blind-test GPT-5 vs. GPT-4o—and the results may surprise you
Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now When OpenAI launched GPT-5 about two weeks ago, CEO Sam Altman promised it would be the company’s “smartest, fastest, most useful model yet.” Instead, the launch triggered one of…