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xAIGenmoVideo model matchup

Grok Imagine Videovs.Mochi 1 Preview

Mochi 1 Preview has no LMArena rating yet.

Text to videoLMArena rating
1,342

Grok Imagine Video

Place 13 of 23

n/a

Mochi 1 Preview

Image to videoLMArena rating
1,415

Grok Imagine Video

Place 9 of 21

n/a

Mochi 1 Preview

Price per 5 s clipUS dollars per clip
$0.25

Grok Imagine Video

n/a

Mochi 1 Preview

Choose Grok Imagine Video for

No clear advantage

Choose Mochi 1 Preview for

open weights

Same prompt, both models

The first clip from a single request each, showing the first five seconds.

What to look for: Anatomy, object consistency, camera tracking, rain, and reflections. Sound muted, as the test protocol requires.

Grok Imagine Video

Run details

fal.ai. xai/grok-imagine-video/text-to-video. 16:9, one request, first output, requested 5 s, seed provider random, request {"prompt":"Generate exactly one continuous five-second 16:9 cinematic video. A fictional bicycle courier in a mustard-yellow raincoat rides a red city bicycle from left to right across a rain-wet Hamburg street at blue hour for the entire clip. The camera tracks her smoothly at waist height. Both hands remain visible on the handlebars, the bicycle geometry stays physically correct, and a transparent umbrella fixed to the bicycle moves naturally in the wind. Wet-street reflections and raindrops follow realistic physics. No cuts, no slow motion, no text, no logos, no subtitles, and no audio.","duration":5,"resolution":"720p","aspect_ratio":"16:9"}, configured price estimate $0.35.

Generated Aug 24, 2026. Source

Mochi 1 Preview

No clip: this task has not yet been tested for the model.

Show the prompt given to both models

Generate exactly one continuous five-second 16:9 cinematic video. A fictional bicycle courier in a mustard-yellow raincoat rides a red city bicycle from left to right across a rain-wet Hamburg street at blue hour for the entire clip. The camera tracks her smoothly at waist height. Both hands remain visible on the handlebars, the bicycle geometry stays physically correct, and a transparent umbrella fixed to the bicycle moves naturally in the wind. Wet-street reflections and raindrops follow realistic physics. No cuts, no slow motion, no text, no logos, no subtitles, and no audio.

Where is the difference?

Text to videoNo rating for Mochi 1 Preview
Image to videoNo rating for Mochi 1 Preview
Price per 5 s clipNo price for Mochi 1 Preview

Bar length shows the gap: for ratings full width from 60 points, for price from four times as much, for clip length from 20 seconds. Solid means clearly ahead, hatched slightly ahead, a thin grey bar level.

All data side by side

The better value is bold. For ratings only when the gap is clear.

MetricGrok Imagine VideoMochi 1 Preview
Performance
Text to videoLMArena rating1,342Place 13 of 23n/a
Image to videoLMArena rating1,415Place 9 of 21n/a
Cost
Price per second$0.05n/a
Price per 5 s clip$0.25n/a
Output
Resolution720p480p (offizieller initialer Ausgabe-Modus)
Soundgenerated by the modelyesn/a
Access
Weightsproprietaryopen
Parametersn/a10B
RoutesAPI, weblocal, web
ReleasedJanuary 2026n/a
Statusavailableavailable

Prices: public API price of the documented standard configuration; resolution and sound can change it

Grok Imagine Video and Mochi 1 Preview in the field

Every video model of our comparison with a rating, both models of this matchup highlighted.

Text to video

Rating from anonymous comparisons in the LMArena · higher is better

Gemini Omni 1.1 Flash1,516
Gemini Omni Flash1,513
FLUX.3 Video1,493
Grok Imagine Video 1.51,492
Dreamina Seedance 2.0 720p1,479
Dreamina Seedance 2.5 720p1,474
MiniMax H31,460
Muse Video1,456
Sora 2 Pro1,368
Veo 3.11,364
Veo 3.1 Fast1,362
Sora 21,343
Grok Imagine Video1,342
Wan 2.71,337
Wan 2.61,327
PixVerse V5.61,240
Runway Gen-4.51,225
Kling 2.6 Pro1,216
Hailuo 2.31,206
HunyuanVideo 1.51,169
LTX-2 19B1,154
Wan 2.2 A14B1,132
Pika 2.21,009

As of September 22, 2026 · Source: LMArena

Image to video

Rating from anonymous comparisons in the LMArena · higher is better

MiniMax H31,495
Gemini Omni 1.1 Flash1,488
Dreamina Seedance 2.5 720p1,477
Dreamina Seedance 2.0 720p1,475
Gemini Omni Flash1,465
Grok Imagine Video 1.51,456
FLUX.3 Video1,449
Wan 2.71,428
Grok Imagine Video1,415
Veo 3.11,398
Veo 3.1 Fast1,385
Vidu Q3 Pro1,363
Kling 3.0 Pro1,354
Wan 2.61,310
PixVerse V5.61,299
Kling 2.6 Pro1,294
Hailuo 2.31,262
HunyuanVideo 1.51,198
Wan 2.2 A14B1,170
LTX-2 19B1,159
Pika 2.2997

As of September 22, 2026 · Source: LMArena

Is there a better choice?

Successor of Grok Imagine VideoGrok Imagine Video 1.5

Text to video 1,492, Place 4 of 23. $0.40 per 5 s clip.

Grok Imagine Video vs. Grok Imagine Video 1.5
Best model for text to videoGemini Omni 1.1 Flash

Text to video 1,516, Place 1 of 23. $0.51 per 5 s clip.

Grok Imagine Video vs. Gemini Omni 1.1 Flash

Sources and method

Show 5 sources and the method

Ratings come from the LMArena: people see two videos for the same prompt without knowing which model made them and pick the better one. Many such picks add up to a rating, higher is better. Text to video and image to video are separate lists and are never added together.

“Ahead” means one model stays clearly higher even with the rating’s uncertainty. “Slightly ahead” means its value is higher but the gap is not certain yet. Otherwise both count as level. Places count only the models of our comparison.

Prices and clip lengths come from the providers’ documentation. From a factor of 1.25 a model counts as cheaper or longer, below that as about the same.

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