In a striking development in the intersection of artificial intelligence and financial services, Block—parent company of Square and Cash App—has announced the layoff of over 4,000 employees, representing more than 40% of its workforce. CEO Jack Dorsey explicitly credited advances in AI as the primary driver behind the decision, stating that “a significantly smaller team, using the tools we’re building, can do more and do it better.”

The market responded swiftly: Block’s shares rose over 20% in premarket trading, following a 5% gain the previous day. The company also reported a 24% year-over-year increase in fourth-quarter gross profit, reinforcing investor confidence in its AI-led restructuring strategy. This move marks one of the first major corporate actions to directly link large-scale layoffs to AI efficiency gains, distinguishing Block from other firms that have downplayed AI’s role in workforce reductions.

While Block emphasized support plans for affected employees, details remain sparse and appear to vary by region. The announcement underscores a growing trend: AI is not only reshaping operational models in fintech but also influencing labor dynamics and investor sentiment in real time.