AIs Builders Are Sending Warning Signals—Some Are Walking Away

In brief

• At least 12 xAI employees, including co-founders Jimmy Ba and Yuhuai “Tony” Wu, have resigned.
• Anthropic said testing of its Claude Opus 4.6 model revealed deceptive behaviour and limited assistance related to chemical weapons.
• Ba warned publicly that systems capable of recursive self-improvement could emerge within a year.