HunyuanVideo vs Kling AI
A spec-by-spec comparison of HunyuanVideo and Kling AI: pricing, free tier, clip length, resolution, watermark, commercial use and API access.
Key differences
- HunyuanVideo is open source and can run locally; Kling AI is a hosted service.
- Free tier: HunyuanVideo — Free to download and run locally (Tencent Hunyuan Community License); Kling AI — Free Basic plan with no monthly credits; exports watermarked.
- Max length: HunyuanVideo — 121 frames by default; Kling AI — 15s per generation (Kling 3.0).
- Max resolution: HunyuanVideo — 720p native, 1080p via super-resolution model; Kling AI — 4K (native).
- Commercial use: HunyuanVideo — Check license (Tencent Hunyuan Community License; not valid in EU, UK, South Korea); Kling AI — Paid plans.
| HunyuanVideo | Kling AI | |
|---|---|---|
| Pricing | Open source | Free plan · from $8.8/mo |
| Free tier | Free to download and run locally (Tencent Hunyuan Community License) | Free Basic plan with no monthly credits; exports watermarked |
| Max clip length | 121 frames by default | 15s per generation (Kling 3.0) |
| Max resolution | 720p native, 1080p via super-resolution model | 4K (native) |
| Watermark on free plan | Yes | |
| Commercial use | Check license (Tencent Hunyuan Community License; not valid in EU, UK, South Korea) | Paid plans |
| Developer API | Yes | |
| Open source | Yes | No |
HunyuanVideo is Tencent's open-weight video generation family. The current 1.5 release is an 8.3B-parameter diffusion transformer for text-to-video and image-to-video at 480p and 720p, with a separate super-resolution model that upscales to 1080p. Tencent has also released training and LoRA fine-tuning code. It targets developers and hobbyists who want to generate video locally on consumer hardware.
- Relatively small 8.3B model; minimum 14GB GPU memory with offloading
- Step-distilled 480p I2V model generates in about 75 seconds on a single RTX 4090 (per Tencent)
- Training code, LoRA tuning scripts and Diffusers support are available
- License excludes the EU, UK and South Korea, and companies with over 100M monthly active users need a separate license
- Native generation is limited to 480p/720p; 1080p requires an extra super-resolution pass
- Not an OSI open-source license; usage is bound by Tencent's acceptable use policy
Kling AI is Kuaishou's video and image generation platform, known for realistic motion and its Kling 3.0 and 4.0 model families. It supports text-to-video, image-to-video, multi-shot scenes, native audio and native 4K output. It suits creators and production teams who want long single clips and strong physics, and a separate developer API is available.
- Native 4K video generation on Kling 3.0 series
- Single generations of 3 to 15 seconds
- Developer API priced per second (e.g. Kling 3.0 Turbo 1080p at $0.14/s)
- Free Basic plan includes no monthly credits and adds a watermark
- Standard plan includes only 660 credits per month
- Advertised first-month prices differ from the recurring renewal price
Specs last verified 2026-10-23 (HunyuanVideo) and 2026-10-23 (Kling AI). See each tool page for sources.