Media Router balances cost, quality, and latency for every request.

Runway's Media Router selects the optimal video, image, or audio model for each generation. An automated trade-off between cost, quality, and latency.

Announced as being in preparation at the opening of its developer platform, Runway's routing layer is arriving. Media Router automatically selects the video, image, or audio model best suited for each request, based on preferences defined once and for all. The company presents it as the first router of its kind for media generation, a process that is already widespread among language models.

The reasoning put forward is twofold. Technical teams do not want to become part-time model watchdogs, and many make a choice once and for all, long after it has ceased to be the right one. At scale, a fraction of a cent or a few milliseconds, multiplied by hundreds of thousands of generations, end up adding up. Runway adds that trade-offs matter even more for media than for text, as quality is a much more difficult dimension to define.

Setup is done in three steps. First, a reusable configuration is defined, with its trade-off between cost, quality, and latency, a price cap per generation, and lists of allowed and excluded models or providers—multiple configurations can coexist, for example, one for quick previews and another for the final export. The request is then sent to a single endpoint, accompanied by the configuration ID and without naming a model. The router then discards those that fail the strict constraints, scores the others according to preferences, generates with the highest-ranked one, and returns the result, indicating which model was selected and why.

Two details deserve attention. When no model satisfies the constraints, the system returns an explicit error naming the one that emptied the selection, rather than silently lowering the settings. Additionally, a dry run allows users to check which model would be chosen, without generating or billing anything. Media Router works for video, image, and audio, across a catalog where in-house models sit alongside those of competitors.