AWS shows three ways to train Qwen3 on Trainium with torchtitan
The notable point is that one config setup now covers three different training backends on Trainium, so teams can switch between them without rewriting launch scripts or breaking checkpoint compatibility. Engineers choosing between NVIDIA GPUs and AWS silicon can use this to evaluate Trainium for fine-tuning open-source models like Qwen3. The guide also shows how NKI MoE kernels fit into the same workflow.