AWS Trainium4
AWS announced Trainium4 alongside Trainium3 in December 2025. Its roadmap targets at least six times Trainium3’s FP4 compute and four times its memory bandwidth, with delivery expected in 2027. Sources and verification dates.
Every published figure
Source per value- Owner The company that specified the chip and runs it in its own cloud, data centers or products.
- Amazon Web Services 1
- Role What the owner says the chip is for: training, inference, both, or a general-purpose server CPU.
- Training and inference 1
- Precision note What the throughput figures mean: dense or sparse, which precision, per chip or per package, and any figure the owner states only in another unit.
- AWS roadmap targets at least 6x FP4 compute, 3x FP8 compute and 4x memory bandwidth versus Trainium3. Absolute TFLOPS are not published; no values are inferred from ratios. 1
- Status Announced: public roadmap without verified deployment. Sampling: first silicon or limited internal use. Preview: customers can request early access, without a GA claim. Deployed: stated production use or general availability. Discontinued: program stopped.
- Announced 1
- Announced Year the owner first announced the chip publicly.
- 2,025 1
- Deployment scale The largest deployment the owner or a named report states: chip counts, clusters, gigawatts or regions.
- Expected to start delivering in 2027 (Amazon Q4 2025 earnings release). 2
Not verified in the sources reviewed: design partner, partner basis, foundry, node, memory, memory capacity, memory bandwidth, bf16, fp16, mxfp8, mxfp4, mx8, mx4, fp8, int8, fp4, power, largest pod, how to get it.
Sources
- Amazon: Trainium3 launch and Trainium4 roadmap accessed 2026-11-11
- Amazon Q4 2025 earnings release: Trainium4 delivery expected in 2027 accessed 2026-11-11