Jack Dorsey’s Block Says AI Tool Builderbot Handles 15% of Coding Work

Fintech company Block has been pursuing an AI-first strategy alongside workforce reductions and a redesign of internal workflows, aiming to sustain product development with smaller teams. The overhaul is significant because it moves generative AI beyond an optional coding aid and into the core of day-to-day engineering, offering a closely watched test of whether AI can deliver measurable productivity gains and lower operating costs across a large technology company.

Nearly six months into the initiative, Block is beginning to see results from the organizational shift. Chief Executive Officer Jack Dorsey said Buzz, the company’s internal AI agent collaboration platform, enables small teams to accelerate software development and move products forward more quickly. AI now participates in almost every production code change at Block, indicating that the technology has become deeply embedded in its engineering process and supporting the company’s case for broader operational efficiency.