PwC split workers into four AI skill groups. Front-runners have strong AI capabilities and make up 14%. AI insurgents are active users with common skills and make up 18%. Indispensables have valued skills but lag in AI learning and make up 11%. The engine room has no specialized skills and is not far along in AI learning and makes up 56%. More than half of workers feel they are falling behind AI-savvy colleagues. AI proficiency boosts job security. The survey covered 49,364 workers in 48 countries. The figures come from a PwC survey.

• 56% in the engine room cohort
• 49,364 workers surveyed
• 29% of front-runners likely to change jobs
• 50% of engine room confident in job security