Kling 2.1
Cloud video gen with strong motion control.
Paid · from $10/mo☁ Cloud · no GPU
Watermark-FreeAPI
Runway Gen-4
Cinematic-quality cloud video generation.
Paid · from $15/mo☁ Cloud · no GPUCloud API
Watermark-FreeAPI
Visit Runway Gen-4Updated 2026-05-13 · Affiliate link
Hardware requirements
Cloud API · No GPU
Min VRAM
None
Rec. VRAM
None
Min RAM
4 GB
Rec. RAM
8 GB
Disk
1 GB
GPU class
No GPU
Apple Silicon ✓CPU-Capable
Cloud API — no local GPU required.
Screenshot placeholder · Runway Gen-4
What is Runway Gen-4?
Closed-weight, cloud-only. Currently the quality bar for prompt-driven video — character consistency, references, motion control. Useful when you want zero GPU overhead and don't mind paying per credit.
Pros & cons
Pros
- Best-in-class cloud video quality
- Character & reference consistency features
- No hardware needed
Cons
- Expensive at scale
- Closed weights
- No local fallback
What's actually free?
Limited free trial credits. Sustained use requires a paid plan.
Watermark-Free
Alternatives
Wan 2.2
Open-weight video diffusion from Alibaba.
Open Source 12–48 GB VRAM
- Min VRAM
- 12 GB
- GPU class
- Workstation GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free
HunyuanVideo
13B open-weight cinematic text-to-video.
Open Source 24–48 GB VRAM
- Min VRAM
- 24 GB
- GPU class
- Workstation GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free