AWS Trainium
Chip
AI Accelerator
Prior generation
Amazon's first training chip — the opening move of its custom-silicon strategy.
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.
Trainium launched in Trn1 instances in 2022: 16 chips per node with 512 GB of accelerator memory, priced to undercut GPU training for teams willing to adopt the Neuron SDK. It seeded the software ecosystem that Trainium2 scaled up.
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
Designer
AWS (Annapurna Labs)
GA
October 2022
Memory
Memory
32 GB HBM per chipVendor spec
Physical
Node
16 chips per trn1.32xlarge; 512 GB accelerator memoryVendor spec
How this connects to the rest of the stack
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Designed by
Available from
Succeeded by
Sources
Record reviewed as of 2026-01-15 — see Methodology.