xAI's Grok Imagine Video 1.5 Just Slashed Rendering to 25 Seconds — And It's Not Just Speed That Has Rivals Nervous
720p video in 25 seconds, $0.07/sec, and a HeyGen connector for instant video answers.
xAI officially released Grok Imagine Video 1.5 on June 17, 2026, following a preview announcement on June 3. Built on the Aurora-2 engine, the model delivers a significant leap in visual fidelity and rendering speed. Videos now render at 720p in approximately 25 seconds — a 37% improvement over the previous version's 40+ seconds. The API charges $0.07 per second of video, making a 10-second clip cost roughly $0.70. Native output reaches 4-megapixel resolution for still images, and the model includes context-aware audio synthesis via the ‘Voice Doctor’ module, synchronizing sound with visual content.
Alongside raw performance gains, xAI introduced several practical features. Quality Mode, added around May 22, sharpens textures, improves lighting, and fixes garbled text in generated images — a common pain point. The ‘Extend from Frame’ tool lets users chain up to 15-second clips seamlessly for longer sequences. On the same day as the 1.5 launch, Grok integrated with HeyGen's HyperFrames connector, allowing users to convert any Grok-generated answer into a polished video within minutes. Elon Musk promoted the release to his 200M+ followers, and the announcement post garnered over 2 million views in under an hour. The updates position Grok Imagine as not just a generator, but a multimedia workflow hub.
- Grok Imagine Video 1.5 renders 720p clips in ~25 seconds, down from 40+ seconds in the previous model.
- API price is $0.07 per second of video; a 10-second clip costs about $0.70 at 720p.
- New Quality Mode delivers sharper textures, accurate lighting, and improved text rendering in generated images.
Why It Matters
Faster, cheaper video generation with API access lets professionals embed AI video directly into production pipelines.