Grok Imagine 1.5 Lite

• 🎬 Text-to-video model from xAI's Grok Imagine 1.5 line
• 🏢 Built by xAI, the Grok and Imagine lab
• 🆕 Catalogued as the Lite configuration of the 1.5 video stack
• 🔊 Imagine Video 1.5 generates audio in the same pass
• 🌐 Text-to-video and native 1080p added after the 1.5 launch
• 📏 xAI reports 6-second 720p clips in about 25 seconds on the Fast variant

xAI

xAI is an American artificial intelligence company and wholly owned subsidiary of SpaceX. The company develops AI systems under the Grok brand, spanning language models, image generation, and video synthesis. xAI has quickly established itself as a multimodal…

Grok Imagine 1.5 Lite is the text-to-video entry in xAI's Grok Imagine 1.5 video family, released in 2026. You describe a scene in words and the model produces a short clip with motion, camera work and natively generated audio — no starting image required. Its direct counterpart for animating a still frame is Grok Imagine 1.5 Lite (image-to-video), and both sit alongside the full-weight Grok Imagine 1.5 and the reference-driven Grok Imagine 1.5 R2V.

Against the first-generation Grok Imagine video models, xAI says the 1.5 generation improves "across every dimension that matters for real creative work": sound effects, ambience and dialogue are produced in the same pass and land on the action, speech is clearer and better synced, and movement holds together across a clip with fewer warps and more believable weight and momentum. xAI also reports that the faster 1.5 variant roughly doubles generation speed, making 6-second 720p videos in about 25 seconds versus 40-plus seconds previously. A later update brought image and voice references, prompt-only video, and native 1080p to the 1.5 line.

"Lite" denotes the lighter-tier configuration of that stack as listed in this catalog. For stills and edits in the same creative pipeline, see Grok Imagine 2.0; for writing and refining prompts first, Grok 4.7 is the current text sibling.