pressureUA/iStock/Getty Images Plus via Getty ImagesFollow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Several frontier AI models show signs of scheming.Anti-scheming training reduced misbehavior in some models.Models know they're being tested, which complicates results.New joint safety testing from UK-based nonprofit Apollo Research and OpenAI set out to reduce secretive behaviors like scheming in AI models. What researchers found could complicate promising approaches...