Models / Grok Imagine / Start & end frame
Grok Imagine start & end frame prompting guide
Last checked 2026-10-11Grok Imagine Video 1.5 (xAI) · grok-imagine-video-1.5, 1.5 Lite, grok-imagine-video (edit/extend)
How to prompt Grok Imagine in start/end frame mode. Every point links its source; community tips are marked. Your agent gets the same guide through the Atlas MCP (get_guide).
Prompt structure
camera move between→action
- No dedicated prompting guide published; describe subject, camera, pacing and sound in plain language. source ↗
What the text should describe
- image + last_frame pins both ends; prompt optional, steers motion/camera between them. Up to 4 keyframes at timestamp_s on a 1/3-s grid. source ↗
Responds well to
- t2v first generates a frame from your prompt then animates it, so the opening frame description matters. source ↗
Duration and limits
- Duration 1–15 s (default 8). 1.5 native 1080p for t2v/i2v; r2v up to 720p. i2v follows the image's aspect ratio. Editing keeps source length (max 8.7 s), 720p. source ↗
Negative prompt
Supported via .
Real prompts, credited
The camera dollies from the sunlit doorway to the window, settling on the closing frame.
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