These numbers seem made up. The article even states Anthropic is hiring people with basic programming skills. I looked up the open jobs at their website and nothing suggests what they're talking about.
According to a ResumeBuilder.com survey, nearly 29% of companies plan to hire prompt engineers in 2023, and about 25% of them anticipate starting salaries exceeding $200,000 per year.
Okay, this article is complete BS to try and drum up more hype for AI. Nobody is, or ever will, hire "prompt engineers" for high salaries. Bet whoever wrote this is going to try and sell a course on how you, too, can be a millionaire with one simple trick.