AI video models compared
Grok Imagine Video vs Grok Imagine Video 1.5
Same family, and the split is not just resolution. The standard tier does text-to-video: describe a scene and it generates one. Version 1.5 works from an image you supply and animates outward from it, and it is the only route to 1080p here.
That makes them complementary rather than competing. If you have no starting frame, only the standard tier can begin. If you do — or you can generate one cheaply on Flux Schnell first — 1.5 gives both higher resolution and much more control over the composition, since you chose the opening frame yourself.
Choose Grok Imagine Video if
- You are starting from text with no image
- 720p is enough
- You want the model to invent the scene
Choose Grok Imagine Video 1.5 if
- You need 1080p
- You already have, or can generate, the opening frame
- Composition must be under your control
Side by side
| Grok Imagine Video | Grok Imagine Video 1.5 | |
|---|---|---|
| Price | 586 credits per second | 586 credits per second |
| Roughly | about 54c per second | about 54c per second |
| Provider | xAI | xAI |
| Aspect ratios | 7 — 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 | 7 — 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 |
| Resolutions | 480p, 720p | 480p, 720p, 1080p |
| Durations | 6s, 10s | 6s, 10s |
| LoRA support | No | No |
| Modes | generate | generate |
Specifications are measured against each endpoint, not copied from a vendor page. Cash figures are approximate at starter-pack rates — see pricing. Highlighted rows are where the two models differ.
Try either one
Open Grok Imagine VideoOpen Grok Imagine Video 1.5
New accounts start with free credits, and credits never expire. Read more about Grok Imagine Video or Grok Imagine Video 1.5, or see every model on comfyarts.