Grok Imagine vs Veo 3.1
Grok Imagine and Veo 3.1 differ on 15 specifications — from what each one costs to which inputs it accepts. Every value below is read from the live model catalog, so it stays current as new versions ship.
Which should you use?
These are not really competitors: Grok Imagine is the cheap, fast, no-audio option capped at 720p, and Veo 3.1 is the finishing model with 4K and synced sound. Use Grok to explore, Veo to deliver.
The catalog gap here is unusually wide. Grok Imagine runs at 480p or 720p, returns no audio, and starts at 8 credits. Veo 3.1 runs at 720p, 1080p or 4K, returns synced audio, and starts at 25.
That makes them tools for different stages rather than alternatives. Three Grok takes cost less than one Veo take, which is exactly the ratio you want while you are still deciding what the shot is. Once the shot is decided, Grok has no path to a 1080p master and no way to give you dialogue.
Grok Imagine is also the more flexible of the two in one respect worth knowing: it covers image generation, video, first-and-last-frame and video extension under one model, so a workflow that moves between those stays in one place. Veo 3.1 is narrower and deeper.
Pick Grok Imagine when
- You are exploring and want the lowest cost per attempt — 8 credits against Veo's 25.
- 720p is enough, and you will be scoring the clip separately anyway.
- You want image and video from one model; Grok Imagine covers both.
Pick Veo 3.1 when
- The shot is being delivered, and 1080p or 4K is required.
- Audio has to come back synced with the picture — Grok Imagine returns none.
- The prompt has multiple constraints that all need to land.
Checked against both models on 2026-08-09.
Side-by-side specs — Video Extension
How Grok Imagine and Veo 3.1 compare when used for Video Extension.
| Specification | Grok Imagine | Veo 3.1 |
|---|---|---|
| Starting price | from 12 credits per second | from 30 credits per second |
| Versions | Standard | Standard |
| Video resolution | Not applicable | 720p |
| Aspect ratios | Not applicable | 16:9, 9:16, auto |
| Duration | 2–10s | 7s |
| Text prompt | Yes | Yes |
| Video input | Yes | Yes |
Side-by-side specs — First & Last Frame Video
How Grok Imagine and Veo 3.1 compare when used for First & Last Frame Video.
| Specification | Grok Imagine | Veo 3.1 |
|---|---|---|
| Starting price | from 8 credits per second | from 25 credits per second |
| Versions | Standard | Standard |
| Video resolution | 480p, 720p | 4k, 720p, 1080p |
| Aspect ratios | 16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16, auto | 16:9, 9:16, auto |
| Duration | 1–15s | 4s, 6s, 8s |
| Text prompt | Yes | Yes |
| Start frame | Yes | Yes |
| End frame | No | Yes |
| Reference images | Yes | No |
Side-by-side specs — Text & Reference to Video
How Grok Imagine and Veo 3.1 compare when used for Text & Reference to Video.
| Specification | Grok Imagine | Veo 3.1 |
|---|---|---|
| Starting price | from 8 credits per second | from 25 credits per second |
| Versions | Standard | Standard |
| Video resolution | 480p, 720p | 4k, 720p, 1080p |
| Aspect ratios | 16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16 | 16:9, 9:16 |
| Duration | 1–10s | 4s, 6s, 8s |
| Text prompt | Yes | Yes |
| Reference images | Up to 7 | Up to 3 |
Frequently asked questions
- Is Grok Imagine or Veo 3.1 better?
- These are not really competitors: Grok Imagine is the cheap, fast, no-audio option capped at 720p, and Veo 3.1 is the finishing model with 4K and synced sound. Use Grok to explore, Veo to deliver.
- What's the difference between Grok Imagine and Veo 3.1?
- Grok Imagine and Veo 3.1 differ on 15 tracked specifications, covering price, output resolution, duration limits and which inputs each one accepts. Both are available on ZOOOP for Video Extension, so you can run the same prompt through each and compare the results directly.
- Is Grok Imagine or Veo 3.1 cheaper?
- Grok Imagine starts at 12 credits, against 30 for Veo 3.1. Both are starting prices: the final cost scales with resolution, duration and any extra options you turn on.
- Can Grok Imagine and Veo 3.1 do the same things?
- They overlap on 3 capabilities: Video Extension, First & Last Frame Video, Text & Reference to Video. Each one is compared separately above, because pricing and parameters differ per capability.
- Can I use both Grok Imagine and Veo 3.1 on ZOOOP?
- Yes. One ZOOOP account gives you both Grok Imagine and Veo 3.1 — plus every other model in the catalog — on the same credits, with no separate subscription per provider. You can switch models mid-project and keep your prompt.
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Specifications are read from the live ZOOOP model catalog and change as providers ship new versions. Credit figures are starting prices — the final cost depends on resolution, duration and the options you pick.