Grok Imagine spec lines: 480p to 1080p, 1 to 15 s

Grok Imagine's own pages give a figure on 3 of the six spec lines. Highest resolution: 1080p. Longest output: in the 15 s or less group. No figure on frame rate, HDR and marks. From 1 source page, read 2026-09-25; no maker pays to be listed.

Inclusion rule. All twenty-nine tools on the sheet, each with the highest resolution its pages print. Order. Alphabetical by tool name.

Resolution

1080p

Frame rate

No figure

HDR

No figure

Frame shape

Three or more

Length

15 s or less

Marks

No figure

1What the pages say

xAI documents Grok Imagine video with tables: 480p by default, 720p and 1080p above it, seven aspect ratios with 16:9 as the default, and 1 to 15 seconds. Edited videos keep their source length, capped at 8.7 seconds. No frame rate or mark is stated.

Maximum resolution: 1080p

1080p Full HD quality 720p HD quality 480p Standard definition, faster processing (default)

xAI docs, video generation

• Resolution table
  1080p, 720p or 480p (the default); 1080p on grok-imagine-video-1.5 for text and image to videoxAI docs, video generation / recorded 2026-09-25

This spec line in detail · Maximum resolution across twenty-nine tools

Frame rate: No figure

• Video generation doc read in full; no frame rate stated
  No figure on the vendor's spec pages (checked 2026-09-25)xAI docs, video generation / recorded 2026-09-25

Frame rate across twenty-nine tools

HDR and bit depth: No figure

• Video generation doc read in full; no HDR or bit-depth statement
  No figure on the vendor's spec pages (checked 2026-09-25)xAI docs, video generation / recorded 2026-09-25

HDR and bit depth across twenty-nine tools

Aspect ratios: Three or more

16:9 / 9:16 Widescreen, mobile, stories (default: 16:9 )

xAI docs, video generation

• Aspect ratio table
  Seven shapes, from the default 16:9 through 3:2, 4:3 and square 1:1 to 3:4, 2:3 and 9:16 portraitxAI docs, video generation / recorded 2026-09-25

Aspect ratios across twenty-nine tools

Longest single output: 15 s or less

The allowed range is 1–15 seconds.

xAI docs, video generation

• Duration parameter
  1 to 15 seconds per video; edited videos keep their original length, capped at 8.7 secondsxAI docs, video generation / recorded 2026-09-25

Longest single output across twenty-nine tools

Watermark on output: No figure

• Video generation doc read in full; no watermark statement
  No figure on the vendor's spec pages (checked 2026-09-25)xAI docs, video generation / recorded 2026-09-25

Watermark on output across twenty-nine tools

2Related sheets

• Grok Imagine and OpenAI Sora
• Grok Imagine and PixVerse
• Flixly
• Google Veo
• HeyGen
• Higgsfield

How each reading is chosen: measurement.

3Sources checked

• xAI docs, video generation, checked 2026-09-25