More than 580 Google employees have signed an open letter demanding CEO Sundar Pichai block the Pentagon from using the company's artificial intelligence technology for military applications.

The letter calls for an immediate moratorium on deploying Google's AI for military purposes, stating, "We want to see AI benefit humanity; not to see it being used in inhumane or extremely harmful ways."

The signatories, including senior staff, expressed concerns about the company's cloud computing and machine learning tools potentially powering lethal autonomous weapons systems. They are demanding greater transparency around existing Pentagon contracts and the establishment of a permanent ethics board with employee representation to review future military partnerships.

Employees pointed to Google's 2018 withdrawal from Project Maven, a Pentagon program analyzing drone footage, as precedent for declining military work on ethical grounds.

This employee action mirrors broader tech industry tensions regarding AI partnerships with the military. The Defense Secretary has emphasized AI's central role in future military operations, with autonomous weapons described as "key and essential."