Originally published on AI Tech Connect.
What you need to know A mixed-vendor fleet is an operational answer to a supply problem, not an architectural preference. Teams end up serving inference on more than one kind of accelerator because the capacity they wanted was not available where they needed it, or because the price difference between two vendors grew large enough to fund the engineering, or because a data-residency obligation pinned them to a region where only one accelerator type is offered. Three things follow from that, and they shape everything below. First, portability is a property you build deliberately in advance, not something you discover you have when the pager goes off. Second, the only comparison that survives contact with reality is cost per million output tokens at a fixed latency target, measured on your…
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