Sora API updates March 2026: character references, higher-res exports, longer videos, batch generation

AI Impact Summary

The Sora API docs have been updated to reflect March 2026 capabilities. The update adds reusable character references, higher-resolution exports (1920×1080, 1080×1920), longer videos (up to 20s), and a video extension feature that derives context from the full original clip. It also introduces a batch API for asynchronous video generation and lists new endpoints: POST /v1/videos, POST /v1/videos/characters, POST /v1/videos/extensions, and POST /v1/videos/{video_id}/edits. The guidance around prompting and edits now emphasizes controlled changes and componentized workflows (edits vs remix).