AI video model comparison
FLUX 3 vs Grok Imagine Video
Grok Imagine Video is 53% cheaper (price per second at 720p: FLUX 3 $0.38/s vs Grok Imagine Video $0.18/s). FLUX 3 has longer clips, a higher top resolution, more reference images and native audio. Grok Imagine Video has the cheapest clip and faster renders.
| Price | ||
|---|---|---|
| Cheapest second | $0.38/s | $0.13/s (best) |
| Per second at 480p | Not offered | $0.13/s |
| Per second at 720p | $0.38/s | $0.18/s (best) |
| Per second at 1080p | $0.61/s | Not offered |
| Cheapest clip | $1.91 | $0.14 (best) |
| A 5-second clip at 720p | $1.91 | $0.90 (best) |
| A 10-second clip at 1080p | $6.11 | Not offered |
| Speed and length | ||
| Render time | ~2–5 min | ~1–2 min (best) |
| Longest clip | 20s (best) | 15s |
| Clip lengths | 5–20s | 1–15s |
| Output | ||
| Top resolution | fhd (best) | 720p |
| Frames | 21:9 · 2:1 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16 | 1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3 |
| Sound | Native (best) | — |
| Inputs | ||
| Takes | 10Text · 10 images | 8Text · 8 images |
| Reference images | Up to 10 (best) | Up to 8 |
| Needs | A prompt | A prompt |
| What it does | ||
| Can do | Text → videoImage → videoMulti-reference | Text → videoImage → videoMulti-reference |
| Good for | Native audio · Dialogue scenes · Up to 20s | Fast drafts · Edgy creative · Memes |
| Settings you control | Frame · Audio · Length · Keyframe times · Resolution · Safety tolerance | Frame · Length · Resolution |
Same prompt, side by side
None of these models has a render on OpenClips yet.
Which should you choose?
Choose FLUX 3 if you want
- longer clips
- a higher top resolution
- more reference images
- native audio
- dialogue scenes
Choose Grok Imagine Video if you want
- a lower price per second at 720p
- the cheapest clip
- faster renders
- fast drafts
- edgy creative
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- Prices come from the live catalog at the pay-as-you-go rate. The quote before you generate is binding. Plans and packs
- Render times are the catalog’s own estimate for one render.
- Every clip and image on this page was rendered on OpenClips.
Questions
FLUX 3 vs Grok Imagine Video: questions
Grok Imagine Video costs the least here (price per second at 720p). FLUX 3: $0.38/s. Grok Imagine Video: $0.18/s. Prices are at the pay-as-you-go rate. The quote before you generate is binding.
Grok Imagine Video is the fastest here. FLUX 3 takes ~2–5 min. Grok Imagine Video takes ~1–2 min.
FLUX 3 and Grok Imagine Video take a still as the first frame or a reference.
FLUX 3 makes up to 20 seconds. Grok Imagine Video makes up to 15 seconds.
FLUX 3 renders native audio with the picture. Grok Imagine Video: silent.