Grok Video vs MiniMax H3
Generated on PixelDojo. Produced by PixelDojo's generation pipeline.
Use Grok Video when you want the cheapest possible pass at an image-to-video idea. Use MiniMax H3 when the clip needs a synced audio track without a separate step. We sent the same earbuds product photo and the same orbit prompt to both on August 26, 2026: Grok Video at its 1 second minimum cost 2 credits and took about 190 seconds, while MiniMax H3 at its 5 second minimum cost 15 credits and took about 215 seconds. Seven and a half times the price bought five times the duration plus a synced audio track. This page lays out what each run actually measured.
Both clips, same photo and prompt, first result kept
Every example below was produced on PixelDojo. Hover to see the prompt.
Slow cinematic camera orbit around the earbuds case, soft studio lighting shifts, the lid opens gently to reveal the earbuds, product commercial style
Grok Video
Slow cinematic camera orbit around the earbuds case, soft studio lighting shifts, the lid opens gently to reveal the earbuds, product commercial style
MiniMax H3
What the two runs actually measured
Both took the same starting photo
We gave both models the exact same earbuds product still and the same camera orbit prompt, so the only variables left were price, speed, and what each model does with a start frame.
Grok Video's cheapest test: 2 credits, about 190 seconds
Image-to-video mode, 1 second duration, 480p. The finished file measured 848 by 480 pixels at 24 frames a second, 1.04 seconds long, about 200 KB. Grok Video bills 2 credits per second of requested duration, 1 to 15 seconds, so 1 second is the floor.
MiniMax H3's minimum test: 15 credits, about 215 seconds
Image-to-video mode, 5 second minimum duration. The finished file measured 1440 by 1440 pixels at 24 frames a second, 5.17 seconds long, about 972 KB, with a synced audio track in the container.
MiniMax H3 always bills at its top tier once a start frame is attached
The resolution field only matters for text-to-video. Feed it a first-frame image and the job renders and bills at the 2K tier regardless of what resolution you request, at 3 credits a second. That is why a 5 second minimum image-to-video job is always 15 credits on this model, never less.
Audio is a documented difference, not a guess
This Grok Video catalog entry is not documented as carrying audio. MiniMax H3 is documented with native synced audio on every export, image-to-video included, and the file we generated carried an audio track in its container.
Same photo, same prompt, same day, two different models. Grok Video: 2 credits, about 190 seconds, 848x480, 1.04s. MiniMax H3: 15 credits, about 215 seconds, 1440x1440, 5.17s, with audio.
Why Choose Pixel Dojo for Grok Video vs MiniMax H3
Professional-quality results with cutting-edge AI technology
Pick Grok Video for the cheapest first look
2 credits for a 1 second check on whether the framing and motion read the way you want before spending more on a longer render.
Pick MiniMax H3 when the export needs sound
Every export carries a synced audio track without a separate step, at a fixed 15 credit floor for image-to-video.
Both work from a real photo, not a description
The exact earbuds case we photographed became the subject of both clips, rather than a model guessing from words alone.
How It Works
How we ran the comparison, so you can repeat it:
Send the same photo and prompt to both models
The earbuds orbit prompt went to Grok Video and MiniMax H3 in image-to-video mode, both pointed at the exact same product still.
Use each model's cheapest viable duration
Grok Video at its 1 second floor, MiniMax H3 at its 5 second floor, since neither goes lower.
Time both from the app or the API
Generate from either tool page, or POST to /api/v1/models/xai-video/run or /api/v1/models/minimax-h3/run. Ours charged 2 and 15 credits and returned in about 190 and 215 seconds.
The Pixel Dojo Advantage
Real numbers from the same day, same photo, same prompt, two different models.
| Others | Pixel Dojo |
|---|---|
| Grok Video: 2 credits a second of requested duration, 1 to 15 seconds. Our cheapest test, 1 second, cost 2 credits. | MiniMax H3: 3 credits a second once a start frame is attached, 5 to 15 seconds. Our minimum test, 5 seconds, cost 15 credits. |
| Grok Video measured turnaround: about 190 seconds for a 1 second clip. | MiniMax H3 measured turnaround: about 215 seconds for a 5 second clip. |
| Grok Video output: 848x480, 24fps, 1.04 seconds, about 200 KB at the settings we tested. | MiniMax H3 output: 1440x1440, 24fps, 5.17 seconds, about 972 KB, fixed to its top resolution tier in image-to-video mode. |
| Grok Video resolution options: 480p or 720p, chosen independently of price. | MiniMax H3 resolution options: 2K or 768p, but the choice is ignored once a start frame is attached; those jobs always render and bill at 2K. |
| Grok Video audio: this catalog entry is not documented as carrying audio. | MiniMax H3 audio: native synced audio documented on every export, and our file carried an audio track in the container. |
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Common Questions
Everything you need to know about Grok Video vs MiniMax H3
Which is cheaper, Grok Video or MiniMax H3?
Grok Video. Our cheapest test cost 2 credits at a 1 second duration. MiniMax H3 has a 5 second minimum for image-to-video, so its cheapest possible test is 15 credits.
Which one is faster?
Close, in our test. Grok Video took about 190 seconds for a 1 second clip and MiniMax H3 took about 215 seconds for a longer 5 second clip on August 26, 2026. Turnaround moves with queue load on both, so treat these as typical rather than guaranteed.
Does either come with sound?
MiniMax H3 documents native synced audio on every export, including image-to-video, and our generated file carried an audio track. This Grok Video catalog entry is not documented as carrying audio.
Can I choose the resolution on MiniMax H3?
Only for text-to-video. Attach a start frame and the job always renders and bills at the 2K tier, 3 credits a second, regardless of the resolution field.
Which should I use for a quick product-style clip?
Grok Video, if you mainly need a cheap first pass on framing and motion. MiniMax H3, if the export needs to leave the pipeline with sound already attached.
How do I call each one from the API?
POST to /api/v1/models/xai-video/run for Grok Video, or /api/v1/models/minimax-h3/run for MiniMax H3. Same API key, same request shape, just a different apiId in the URL.