Introduction
A practical guide to using Kling v2.1 in our Media Generator: options, credits per duration, prompt tips, and best practices.
Kling v2.1 is a high-quality text-to-video model known for realistic motion. In our platform, it supports:
- Text-to-video — Generate video from prompts (no image required)
- 5 or 10 seconds — Short clips
- 1080p resolution
- 16:9, 9:16, 1:1 aspect ratios
- Higher cost — Premium quality, higher credits
Use it when you need strong realism and fluid motion.
Where to Use Kling v2.1
| Location | How | |----------|-----| | Media Generator | Tools → Media Generator → Video tab → select "Kling v2.1" | | Image-to-video projects | Create a project and select Kling v2.1 for video generation |
Platform Options
Duration
| Option | Credits | |--------|----------| | 5s | 3.50 | | 10s | 7.00 |
Default: 5s
Resolution
1080p only
Aspect ratio
| Option | Best for | |--------|----------| | 16:9 | Landscape | | 9:16 | Portrait, Stories | | 1:1 | Square |
Default: 16:9
Costs (credits)
Kling v2.1 uses per-second pricing:
| Duration | USD | Credits | |----------|-----|----------| | 5s | $1.40 | 3.50 | | 10s | $2.80 | 7.00 |
Rate: $0.28/second
\*Credits computed with default billing config. Check the model selector for current rates. One of the higher-cost video providers.
Prompt Guidelines
Do
- Describe realistic motion — “water flows smoothly,” “person nods”
- Specify physics where relevant — “natural lighting,” “realistic shadows”
- Include camera movement — “smooth pan,” “subtle zoom”
- Use detailed scene — Kling benefits from clear visual description
Avoid
- Abstract or surreal prompts (unless intentional)
- Conflicting motion or physics
- Overly long, complex descriptions
Tips & Tricks
- 5s for tests — Save credits; Kling is premium-priced.
- Realistic scenes shine — Natural motion, people, nature work well.
- 1080p by default — Already high-res; no lower option.
- Clear action beats vague — “person walks across frame” > “something moves.”
- Budget wisely — Use Pruna or Seedance for drafts; Kling for finals.
Limits and Constraints
| Constraint | Value | |------------|-------| | Durations | 5s, 10s | | Resolution | 1080p only | | Aspect ratios | 16:9, 9:16, 1:1 | | Reference image | Not required |
Troubleshooting
| Issue | What to try | |-------|-------------| | Cost too high | Use 5s; try Pruna or Seedance for drafts | | Unrealistic motion | Simplify; add “realistic,” “natural” | | Model not available | Confirm Replicate API token is configured | | Long queue | Kling may have higher demand; try off-peak |