Together AI says open model stack splits into five swappable layers
Overview
Together AI says the open model stack now breaks into five layers: model, inference, gateway/router, harness, and tools.
The company says each layer can change independently, so developers can swap in new models, providers, or tools as the ecosystem shifts. Together AI published a full breakdown of the stack on its blog. The report is a company claim posted on X and has no independent evidence attached.
Written by AI from the articles below · updated Oct 27, 12:07 PM ET
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Together AI@togethercomputeOfficialTogether AI says the open model stack is becoming composableAITogether AI says the open model stack now breaks into five layers: model, inference, gateway/router, harness, and tools. Each layer can evolve independently, so developers can swap in better models, providers, or tools as the ecosystem changes. The company published a full breakdown of the stack on its blog.

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