The company told employees to work from home Wednesday while notices went out.
Meta told employees in April it was cutting 8,000 jobs and closing 6,000 open positions.
Engineers and product teams are expected to be the hardest hit.
The company also announced its reassigning thousands into new AI-focused roles.
Meta, along with other tech giants, has been on an aggressive AI spending spree. The company spent $72.2 billion on capital expenditures in 2025, or costs related to data centers and other AI infrastructure. That number is expected to climb to at least $115 billion in 2026, Meta said in its January earnings report.
The company has also been splurging on talent for its superintelligence lab and has acquired buzzy AI startups like Moltbook and Manus as part of its ongoing efforts to compete with OpenAI and others.
CNN contributed to this story.