Signway

Signway is a service that adds pre-signed URL functionality to applications built on OpenAI models. Normally, streaming a model response means running something on your own server to pass tokens along. With Signway you create a pre-signed URL instead, and the client device receives the streamed response directly, with no server side processing in the path. That removes a piece of infrastructure from chat interfaces, image generation flows and audio applications that need a continuous stream. The free plan covers ten requests per second, one megabyte of data transfer per request and a single application. Beyond that, paid plans are charged on usage.

- Stream ChatGPT style replies straight to a client

- Let users watch image generation progress on their own device

- Deliver continuous streaming for audio applications

- Drop a streaming proxy from your architecture

- Developers building conversational interfaces on OpenAI models

- Teams that want streaming without maintaining a proxy

- Product engineers prototyping audio or image flows

The free plan is deliberately narrow: one application, ten requests per second and one megabyte per request. Anything larger needs a paid plan, and the cost scales with usage rather than sitting flat. The service is tied to OpenAI APIs, so changes to authentication, pricing or streaming behavior upstream will land on you. Pre-signed URLs are credentials, so treat them accordingly: keep lifetimes short, do not log them and do not embed them in public client code where they can be copied and reused. Processing speed depends on file size and network conditions, so retry later if a task stalls during peak hours.