SeedRouter is a unified AI API. One key and one prepaid dollar balance give your app access to language models (GPT-6, Claude), image models (Nano Banana, GPT Image) and video models (Seedance).
It's built for developers and small product teams who ship AI features and don't want a separate account, key and invoice for every model vendor. LLM calls keep the OpenAI SDK shape; image and video jobs return a task id you poll or get via webhook.
You only pay for delivered requests, never a monthly plan. Spend across any model, and pay nothing when a request fails.
Shipping one AI feature tends to pull in several model vendors: a chat model here, an image model there, a video model for social clips. Each one means another signup, another key to rotate, another invoice and another integration, and swapping models turns into a mini migration. SeedRouter was built to keep the account, the key and the balance constant whichever model a product calls, and to bill only for output that is actually delivered.