The AI whose memory is shared across all users

Anyone seen this show up in any APIs yet? I'd love to try it out but it didn't want to reply... It's been fun watching it get more and more like Anthropic has the best frontier team and the worst policy team. Dario being part of the latter. Started reading, however I wanted to add this in: a lot of documentation and pages to handle; in this case it would take what, 10 minutes to come up with something genuinely new.