SAN FRANCISCO — xAI has moved Grok Imagine Video 1.5 from preview to full general availability, and the timing comes with a flex: the model now leads the image-to-video Arena leaderboard while undercutting its best-known rival by a wide margin.
The release puts the upgraded generator in the Imagine API and on grok.com/imagine, along with the platform's iOS and Android apps. Grok Imagine Video 1.5 takes a still image plus a motion-describing text prompt and produces a clip of up to 15 seconds at 480p or 720p, with synchronized audio generated in the same pass.
Top of the Leaderboard
By Elo ranking, Grok Imagine Video 1.5 currently sits atop the image-to-video Arena, a position that matters in a field where quality is judged head to head. The model is priced at about $4.20 per minute at 720p through the API, roughly 86% below the $30 per minute that competing premium tiers command. That combination of leaderboard-topping quality and aggressive pricing is exactly the kind of value play that has defined xAI's rapid product cadence, echoing the consumer-facing video tools covered in our report on Grok turning answers into video via HeyGen.
New Workflow Tools
The GA launch is paired with features aimed at people who generate at volume. Projects add a sidebar-based layer for grouping related generations, multi-agent execution lets several prompts run in parallel, and library search makes previously created images and videos easy to find again.





