xAI updates Imagine with video extension and HD upscaling

xAI continues to roll out updates to its Imagine feature, aiming to make Grok’s web platform more competitive with established image and video generation tools. In the latest web build, users noticed a new option to extend existing videos directly in the interface, indicating a move toward longer or sequential video outputs. There’s now a selector in the prompt bar that allows users to toggle between image and video generation, finally bringing web-based text-to-image capabilities that had previously been restricted to the mobile version. The upscaling feature, which lets users increase video output to HD quality, is now available on web but remains missing from the iOS app, though this addition is likely on the roadmap.

In addition, upscaling and a new Remix feature are coming to Grok for iOS soon.

These capabilities are particularly useful for creators and developers looking to produce richer visual assets without switching devices or platforms. For now, the web is where the full range of features is available, but xAI’s steady pace of development suggests mobile parity is coming. The underlying model appears to be under continuous refinement, as output quality has been improving with each update.

xAI, led by Elon Musk, positions Grok and its Imagine feature as a direct response to advancements from competitors like OpenAI, Google, and Meta, who have rapidly pushed the boundaries in generative media. The expansion of web-based controls and HD upscaling reflects an intent to appeal both to casual users experimenting with content and professionals needing higher-fidelity outputs. This approach is consistent with xAI’s broader strategy of narrowing the gap in AI-driven creative tooling, focusing on both accessibility and output quality.