COpen

CogVideoX-5B

Tsinghua / Zhipu AI

Lightweight entry point. 12GB GPU, Apache 2.0. Most accessible for experimentation.

BOpen

HunyuanVideo 1.5

Tencent

Punches above its weight. Avatar and Custom variants add versatility.

Pick CogVideoX-5B if…

You want budget prototyping, research, or motion-heavy short clips.

Pick HunyuanVideo 1.5 if…

You want avatar gen, custom characters, or research.

Specifications

Maker
Tsinghua / Zhipu AI
Tencent
Source Type
Open Source
Open Source
License
Apache 2.0
Tencent Open (check terms)
Architecture
Expert Transformer
DiT + 3D Causal VAE
Parameters
5B
8.3B
Max Resolution
720p (1360x768)
720p
Max Duration
6s
6-10s
FPS
8
24
Native Audio
No
No
ComfyUI Support
Yes
Yes
Fine-tunable
Yes
Yes
Min VRAM
12GB
24GB (RTX 4090)
Cost / Second
Self-host
$0.06
Inputs
T2V
T2V, I2V, Avatar
On Floyo
No
Yes

Strengths & Trade-offs

CogVideoX-5B

Strengths

  • +Lightweight 12GB
  • +Apache 2.0
  • +LoRA + DDIM Inverse
  • +ModelScope integration

Trade-offs

  • -Low FPS (8fps)
  • -6s max
  • -older architecture

Best For

  • Budget prototyping
  • research
  • motion-heavy short clips

HunyuanVideo 1.5

Strengths

  • +Efficient 8.3B params
  • +~75s on 4090
  • +Avatar + Custom variants

Trade-offs

  • -Short output
  • -720p max
  • -no audio

Best For

  • Avatar gen
  • custom characters
  • research
  • consumer GPU