We're opening Claude Duet today as a research preview, starting with a waitlist. It's our take on giving everyone a trusted partner with your work.

I've been using it for a few weeks, at work and at home. It drafted questions for a fireside chat, watched Slack over the weekend so I could log off, and told me about the new @nealstephenson book — and then ordered it from my local bookstore once I asked.

We've found Opus 5.5 was our first model with the judgment to be proactive in the right ways. Here's what that's looked like.