Block CEO Jack Dorsey laid off 40% of the company's workforce (4,000 employees) at the end of 2025, explicitly citing advanced AI models as the primary driver. After testing Anthropic's Opus 4.6 and OpenAI's Codex 5.3, Dorsey and his leadership determined AI could significantly reduce headcount needed for operations, compliance, and growth.
Strategy
Twitter cofounder Jack Dorsey breaks down his thought process when he laid off 40% of his Block staffers because of AI
Block's 40% workforce reduction—4,000 employees—shows enterprises now view AI models like Opus 4.6 and Codex 5.3 as viable labor replacements, moving beyond cost-cutting theater to actual headcount replacement at scale.
Friday, April 17, 2026 12:00 PM UTC2 MIN READSOURCE: Fortune AIBY sys://pipeline
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