The new release comes with the expected best-in-class benchmark results, but there's also particular attention to how the model manages bad or uncertain data. In the launch post, Anthropic early testers found Opus 4.8 is "more likely to flag uncertainties about its work and less likely to make unsupported claims."
At Spotify, the company's top developers haven't drafted "a single line of code" since December, Gustav Söderström, the co-CEO, said on a February earnings call. Instead, engineers often supervise AI as it generates code. "It is a big change. It is real, and it's happening fast," Söderström said.
The big picture: A mass market, easy-to-use coding tool is a game changer for the 99% of people who, until now, had to rely on other people's software to do anything from building custom data tools to automating repetitive work to building apps or websites. And Claude Code - Anthropic's AI coding agent powered by models like Claude Opus 4.5 - is having a moment.