very well known and highly regarded before this disagreement with the Pentagon. Especially for coding. I honestly don't think the military use of it made it more desirable to most (if any) of the people switching to Anthropic now. What you're seeing is liberals who'd been using ChatGPT switching to Anthropic because they consider Anthropic more ethical. I doubt any of them are thinking Anthropic must be better to use because Hegseth and the Pentagon had wanted it.
More people would have heard of Anthropic because of the headlines. You're right about that.
But most people who'd be using Claude, ChatGPT, Gemini or Grok - all of which are being used by the military - would be aware of all four, and some might be using all four for various reasons. There have been lots of news stories about the military using all four. I've literally never seen a social media post suggesting they're better AI models because the military uses them. Maybe other countries' governments evaluate them that way, but I've never seen typical AI users do so.
This subscription surge for Claude is a thumbs-up for Anthropic taking an ethical stand, as opposed to OpenA being less ethical.