Vibe Check: GPT-5.5 Has It All (opens in new tab)

by Katie Parrottin Vibe CheckMidjourney/Every illustration.Was this newsletter forwarded to you? Sign up to get it in your inbox.Frontier models usually take a while to get used to. You have to learn their slow spots, when they need extra prompting, and when to keep a close eye on the output.GPT-5.5, out today, feels easier to settle into. It’s fast enough to use constantly, personable enough to collaborate with, and assertive enough to carry a plan through serious engineering work. It’s bett...