The timeless dilemma! I don't know how old you are, but just don't let the experience break your internal motivation as it can be hard to recover -- and remember however much 100k is and however much you save, it's still many years at that salary to genuine retirement. I don't know what equity packages are like these days at OpenAI/Anthropic, but especially if you're interested in the topic and have strong beliefs about how AI should play out in the world it's worth considering rolling the dice on a 2-4 year sprint. I imagine SA type positions at either of those companies are some of the most interesting roles, especially working in legacy industries/government [1], since you'd get to see firsthand how/where it's most effective (to say nothing of honing your language skills). Good luck regardless!

[1] https://openai.com/careers/solutions-architect-public-sector... for example - listed salary is 2x your current in the US, not sure what the salary is like in the EU.