A few things turned investors' heads and drew them to participate in such a big round out of the gate.

Shortly after Delve's founder published a lengthy denial of allegations, while promising changes, the accuser came forward with more alleged details.

Estimates for total Claude consumer users are all over the map (we've seen figures ranging from 18 million to 30 million). Anthropic hasn't disclosed this data, but a spokesperson did tell TechCrunch that Claude paid subscriptions have more than doubled this year.