Vercel AI Gateway
The official xAI/SpaceXAI news index lists "Imagine Video 1.5 with References" dated July 31, 2026, described as xAI's best video model with support for text, image, and voice references and up to 1080p output resolution. This is the upstream model-owner's attestation of a Grok Imagine Video variant within the same mod For developers evaluating the Grok Imagine Video model, the xAI news page confirms a Video 1.5 variant supports up to 1080p generation with text, image, and voice references, indicating it is a generation tool rather than purely an editing endpoint. This positions Grok Imagine Video 1.5 as a multimodal-input video mode
