Microsoft said on Tuesday it was laying off less than 3% of its workforce, or around 6,000 employees, as the technology giant looks to rein in costs while funneling billions of dollars into its ambitious bet on artificial intelligence.

The technology company, headquartered in Washington, is cutting 122 workers in Silicon Valley. The layoffs heavily affected software engineering roles.

Microsoft began laying off about 6,000 workers Tuesday, nearly 3% of its entire workforce and its largest job cuts in more than two years as the company spends heavily on artificial intelligence.