Meta Reports 30% Engineer Productivity Gain from AI Coding Tools, Power Users at 80%

Summary

During Meta's Q4 2025 earnings call and subsequent investor communications (January 29-30, 2026), Meta's CFO Susan Li disclosed that output per engineer has risen 30% since the start of 2025, driven largely by the adoption of AI coding agents. "Power users" have increased output 80% year-over-year. CEO Mark Zuckerberg stated that 2026 will be the year "AI starts to dramatically change the way that we work," adding that Meta intends to use AI for half of its software development within the next y