Microsoft Maia 100
Microsoft's first in-house AI accelerator, built with OpenAI workloads in mind.
You're looking at a chip record: what this processor is, its key specs, who designs, manufactures and supplies its parts, and where it gets used.
Maia 100 marked Microsoft's entry into custom AI silicon: a 105-billion-transistor 5 nm chip with 64 GB of HBM2E, deployed in bespoke racks with a closed-loop liquid 'sidekick' cooler. Microsoft has described using it for internal services and OpenAI-related workloads; a successor generation has been reported but not fully detailed.
Specifications & key facts
Each figure is labeled by basis: vendor spec, vendor claim, reported, estimate, or official. "Not publicly disclosed" means exactly that — we never invent values.
Overview
Manufacturing
Memory
Power
Physical
How this connects to the rest of the stack
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Sources
Record reviewed as of 2026-01-15 — see Methodology.