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Side-by-side facts: capabilities, typical speed and credit cost. Quality is subjective, so the best test is to try your own prompt on two models.

xAI

Grok Imagine 1.5

AvailabilityAvailable
Known forFast renders · Bold, stylish looks
Generation typesText to Video, Image to Video
Resolutions480p, 720p, 1080p
Duration5–15 s
Aspect ratios16:9, 9:16, 1:1, 4:3, 3:4
AudioAlways
End frame—
Reference images—
Typical generation timeAbout 1 minute
Cheapest generation120 credits
5 s at 720p210 credits
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