Async Processing

Asynchronous processing is the standard pattern for lip sync APIs because video processing takes significantly longer than a typical HTTP request timeout. In an async workflow, the client submits a lip sync job and immediately receives a job ID. The job is then processed in the background on GPU infrastructure, which may take seconds to minutes depending on video length and queue depth.

The client can check job status via polling or receive a webhook notification upon completion. This pattern enables lip sync integration into production systems that handle many concurrent jobs, each progressing independently through the processing pipeline.

Async Processing relates to several other concepts in the AI lip sync pipeline: Job Queue , and Webhook .