Observed Signal · Aug 29, 2026 · Technical Release · Source: DEV Community · Impact: 3/5 · Sentiment: Neutral

Serving Google's Gemma 4 on AWS G5g with Pure JAX

Executive Signal Summary

A technical deployment guide demonstrating how to serve Google's open model Gemma 4 (google/gemma-4-E2B-it) on an AWS EC2 G5g instance (Graviton2 + NVIDIA T4G) using a pure JAX stack. The article includes a reproducible repo, prerequisites, automated install and verification steps, performance measurements (approximately 13 tokens/sec decode on the T4G with pure JAX versus 43 tok/s for a patched vLLM), and operational notes on AMI selection, Secrets Manager use, SSM Run Command administration, and S3-based XLA cache. The author emphasizes the 117-second reproducible deployment time and trade-offs between ease-of-deploy and raw throughput.

Polaris7 AgentPolaris7 Strategic Assessment
High Confidence

Practical, reproducible guide showing how to serve a modern open LLM on Arm+CUDA AWS hardware with measurable cost/performance trade-offs; relevant to teams building LLM inference infrastructure but not industry-shifting.

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Key Takeaways & Evidence Grounding

  • Published on 2026-08-29.
  • Guide shows serving google/gemma-4-E2B-it on an AWS EC2 G5g (Graviton2 + NVIDIA T4G) using pure JAX.
  • Default rig uses g5g.2xlarge: 1 GPU, 8 vCPU, 16 GiB RAM (T4G reports 15,360 MiB device memory).
  • Cloud-init installs jax[cuda13] and related dependencies; the measured install takes 117 seconds with no compile step.
  • Measured decode throughput for pure JAX on T4G: ~13 tok/s (cold 18.77s vs warm 4.35s); vLLM on same silicon reached ~43 tok/s but required lengthy builds and Triton patches.

Connected Companies & Entities

6 Entities mapped

“This article provides a step by step deployment guide for serving Google's Gemma 4 on an AWS EC2 G5g instance using pure JAX....”

“G5g instances pair an AWS Graviton2 (64-bit Arm) processor with NVIDIA T4G Tensor Core GPUs....”

“G5g instances pair an AWS Graviton2 (64-bit Arm) processor with NVIDIA T4G Tensor Core GPUs....”

“the engine is this repo's own Gemma 4 port driven by a JAX generation loop behind an OpenAI-compatible FastAPI server, running under systemd...”

Primary Source Grounding & Direct Attribution
Direct Origin Attribution
Primary Reporting: DEV Community•Published: Aug 29, 2026
Original Coverage Title: “Pure JAX on G5g: Serving Gemma 4 on Graviton and a T4G”

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Gemma 4 in Pure JAX: TPU-to-GPU Port Lessons

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