SpaceXAI: Grok Imagine Video 1.5 Lite

SpaceXAI: Grok Imagine Video 1.5 Lite is a video generation model from xAI. It is a distilled version of Grok Imagine Video 1.5, built to be faster and lighter than the model it derives from. The tradeoff is deliberate: it gives up some output quality in exchange for speed, which makes it the variant to consider when turnaround matters more than maximum fidelity.

The model takes text and image inputs and produces video as its only output. It handles both text-to-video and image-to-video generation, and for image-driven work it accepts a first frame image to anchor the clip. Output can be rendered at 480p, 720p or 1080p, in seven aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 3:2 and 2:3. Clip durations run from 1 to 15 seconds in single-second steps. No context length is published for this model, and the max output field is listed as zero, so plan around the resolution, aspect ratio and duration controls rather than a token budget.

Those capabilities point to a fairly specific set of uses. The vertical 9:16 and square 1:1 ratios suit short-form social clips, while 16:9 fits standard widescreen playback. Image-to-video with a first frame is useful when you already have a still, such as a product shot or a keyframe, and want it animated rather than generated from scratch. The 1 to 15 second range covers short loops, teasers, transitions and b-roll style inserts. Because the model is the faster, lighter sibling, it fits iteration-heavy workflows where you generate many candidate clips and only promote the best ones.

You call it through api14's OpenAI-compatible API using the model id "x-ai/grok-imagine-video-1.5-lite". The supported request parameters are logprobs, max_tokens, response_format, seed, temperature, top_logprobs and top_p. The seed parameter is worth noting for video work, since it lets you reproduce or vary a generation deliberately. Temperature and top_p give you control over sampling, and response_format lets you shape how the result comes back.

Since this is the Lite variant, it is the right pick when speed and volume matter, and the full Grok Imagine Video 1.5 is the natural alternative when you need higher quality and can accept a slower, heavier model. The published facts do not include audio generation details, so do not assume audio output. If your project depends on audio, verify that separately before committing.