Nvidia's reputed AI moat has been built on an all-encompassing hardware and software vision and proprietary tools like its CUDA programming model for its GPUs. For companies like AMD that are hoping to bridge the moat, an embrace of open source tools could be key, and that appears to have been one of the drivers behind AMD's acquisition of Finland-based Silo AI. AMD this week announced a definitive agreement to acquire Silo AI, a Helsinki company described by AMD as "the largest private AI lab in Europe," in a $665 million all-cash transaction expected to close in the second half of this year. The acquisition comes as AMD has invested more than $125 million in a dozen AI firms in the last year. It also is AMD's third AI-related outright acquisition in less than a year, following the August 2023 purchase of Mipsology and last October's deal to buy Nod.AI.