Video model comparison
Kling 3.0 vs Grok Imagine Video 1.5
Kuaishou's Kling 3.0 and xAI's Grok Imagine Video 1.5, side by side: price per second, resolution, clip length, audio and references — and when to choose which. Both run on one Cheaper Gen. API key.
Kling 3.0
Price
Kling 3.0 vs Grok Imagine Video 1.5: price per second
Live prices at the tiers both models offer, with audio. Official list prices are on each model's pricing page.
| Tier | Kling 3.0 | Grok Imagine Video 1.5 | Per clip | Cheaper |
|---|---|---|---|---|
| 720pwith audio | $0.11/s | $0.0248/s | $0.55 · $0.12 5 s each | Grok Imagine Video 1.5 −78% |
| 1080pwith audio | $0.1478/s | $0.22/s | $0.74 · $1.10 5 s each | Kling 3.0 −33% |
Specs
Side-by-side specifications
From each model's API parameters in our catalog.
| Spec | Kling 3.0 | Grok Imagine Video 1.5 |
|---|---|---|
| Developer | Kuaishou | xAI |
| Released | Feb 25, 2026 | May 30, 2026 |
| Tasks | Text to video, Image to video | Text to video, Reference to video |
| Resolutions | 720p · 1080p · 4K | 480p · 720p · 1080p |
| Clip length | 3–15 s | 1–15 s |
| Audio | Optional, billed at a higher rate | Included at no extra cost |
| Image-to-video | First + last frame | — |
| Reference inputs | — | Up to 7 images |
| Aspect ratios | 3 (16:9, 9:16, 1:1) | 7 (16:9, 9:16, 1:1, 4:3, 3:4, 3:2…) |
| Starting price | $0.0739/s (720p) | $0.0248/s (720p) |
| Below official price | up to 13% | up to 82% |
Verdict
When to choose which
Each point below comes from the price and spec data above.
Choose Kling 3.0 for
- Higher maximum resolution: 4K vs 1080p.
- First and last frame control for image-to-video.
- Supports image to video.
Kling 3.0 at a glance
- Up to 4K — 720p, 1080p and native 4K
- 3–15 seconds — Pay per second
- Native audio — Optional synchronized sound
- Frames — First & last frame control
Choose Grok Imagine Video 1.5 for
- Lower price: $0.0248/s vs $0.11/s at 720p with audio (78% less).
- Audio included at no extra cost (the other bills audio at a higher rate).
- More reference inputs: up to 7 images.
- More aspect ratios: 7 vs 3.
- Supports reference to video.
- Newer model (released May 30, 2026).
Grok Imagine Video 1.5 at a glance
- Up to 1080p — 480p, 720p and 1080p
- 1–15 seconds — Pay per second
- Native audio — Included
- References — Image references
Try both with the same prompt
Same API key and balance; only the endpoint changes. Failed generations are refunded.
POST /api/v1/run/kuaishou/kling-3.0/text-to-video
POST /api/v1/run/xai/grok-imagine-video/text-to-videoFAQ
Kling 3.0 vs Grok Imagine Video 1.5 questions
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Kling 3.0 is developed by Kuaishou; Grok Imagine Video 1.5 by xAI. Cheaper Gen. provides API access to both through official upstream endpoints and does not own either model. Trademarks belong to their respective owners.