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Grok Imagine Video: From Tests to Major Upgrades

xAI's Grok Imagine video generator sparked user testing, followed by the 1.5 upgrade featuring 1080p text-to-video and Runway integration, plus a new character consistency feature.

2026-07-31 ~ 2026-08-02 · 3 episodes · 13 posts

Episode 1 · Grok Video Generation Tested: Up to 15 Seconds (2026-07-31, 2 posts)

Users tested xAI's Grok Imagine video generation feature, praising its high realism and ease of use. The tool can currently generate videos up to 15 seconds long with minimal censorship on facial content.

Episode 2 · xAI's Imagine Video 1.5 Upgrade: Adds 1080p Text-to-Video and Runway Integration (2026-08-01, 9 posts)

xAI's video generation model, Imagine Video 1.5, has received a major update and is now fully available across its API, consumer products, and the Runway platform. This update significantly enhances video dynamics and audio realism while introducing several core generation features, marking a comprehensive expansion of the model's capabilities.

Confirmed

  • Core Feature Upgrades: Imagine Video 1.5 introduces text-to-video generation and supports both image and audio reference inputs.
  • Resolution Improvements: The new version supports native 1080p resolution video output.
  • Multi-Platform Availability: The model is now live across the API and xAI's consumer products, available for immediate trial.
  • Runway Integration: Imagine Video 1.5 is officially integrated into the Runway platform, allowing users to experience the model directly within Runway.

Why It Matters

  • This update fills the gap in text-to-video and multimodal reference input capabilities, while the native 1080p output elevates generation quality, boosting xAI's competitiveness in the video generation space.
  • By simultaneously opening the API and integrating with mainstream third-party creative platforms like Runway, this move will vastly expand its creator ecosystem and commercial application scenarios.

Episode 3 · Grok Imagine introduces consistent characters for video (2026-08-01, 2 posts)

xAI's Grok Imagine has introduced a consistent characters feature, allowing users to maintain a uniform character appearance across different generated video scenes to tell cohesive visual stories.