# Together AI — Inside multi-node training: How to scale model training across GPU clusters

- Company: Together AI (together.ai)
- Announced: 2026-01-12T00:00:00+00:00
- Subject: Inference platform
- Source: https://www.together.ai/blog/multi-node-gpu-training
- Record: https://forck.live/items/2389-inside-multi-node-training-how-to-scale-model-training-across-gpu-clusters

This article is a technical guide explaining multi-node GPU training, covering parallelism strategies, network interconnects, checkpointing, and practical steps for scaling model training across GPU clusters, with a production example using Qwen2.5-72B.

## Evidence

Verbatim from https://www.together.ai/blog/multi-node-gpu-training:

> Training foundation models requires orchestrating hundreds or thousands of GPUs working in parallel. This article walks through the infrastructure, techniques, and practical steps for distributed training at scale.

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