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VS
DimensionGemini Omni Flash 1.1Grok Imagine Video 1.5
Best use caseNative-audio text, image and reference-to-video workflowsNative-audio text, image and reference-to-video workflows
Native audioYesYes
Maximum duration3–10 seconds per generated clip; extension can continue in additional steps1–15 seconds canonical xAI generation; longer Roko buckets are provider-specific and non-official
Maximum resolution4K delivered; 720p native/default; 1080p and 4K upscaled1080p native for T2V/I2V; R2V max 720p; edit inherits input and is capped at 720p
APIavailableavailable
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