AClosed
Grok Imagine
xAI
The speed king. Fastest generation at the lowest cost with native audio. Built for rapid creative iteration, not pixel-perfect cinema.
Pick Grok Imagine if…
You want fast iteration and prototyping, social media clips, or product teasers.
Pick Sora 2 if…
You want physics-heavy scenes, product demos, or multi-shot storytelling.
Specifications
Maker
xAI
OpenAI
Source Type
Closed Source
Closed Source
License
Commercial (X Premium / API)
Commercial (subscription)
Architecture
Aurora autoregressive engine (proprietary)
DiT
Parameters
Undisclosed (trained on 110K GB200 GPUs)
Undisclosed
Max Resolution
720p
1080p
Max Duration
6-15s
15-25s
FPS
24
24-30
Native Audio
Yes
No
ComfyUI Support
Yes
No
Fine-tunable
No
No
Min VRAM
Cloud only
Cloud only
Cost / Second
$0.05/sec
$0.15
Inputs
T2V, I2V, V2V (edit), Reference-to-Video, Video Extend
T2V, I2V, Extensions
On Floyo
Yes
Yes
Strengths & Trade-offs
Grok Imagine
Strengths
- +Best-in-class instruction following for video
- +native audio (dialogue + ambient + SFX)
- +7 aspect ratios (16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 1:1)
- +fastest generation speed + lowest latency
- +$0.05/sec (budget-friendly)
Trade-offs
- -720p cap (no 1080p/4K)
- -quality degrades after 2-3 chained extensions
- -no visible watermarks (brand safety concern)
- -content moderation controversies
- -no open weights
Best For
- →Fast iteration and prototyping
- →social media clips
- →product teasers
- →cinematic storyboarding
Sora 2
Strengths
- +Best physics accuracy
- +multi-shot Extensions
- +strong prompt adherence
- +good hands
Trade-offs
- -No native audio
- -finger artifacts
- -limited availability
- -watermark default
Best For
- →Physics-heavy scenes
- →product demos
- →multi-shot storytelling
Run these models on Floyo
Browser-based ComfyUI. No setup, no GPU required.
I2VGrok Imagine
Grok Imagine Image to Video
2.2k runs
I2VSora 2
Sora 2 Pro Image to Video
Post-processingSora 2
Sora 2 Watermark Remover + FlashSV