Z.aiCogView
CogView4-6B
A downloadable image generator with explicit precision limits.
Practical use
Practical guidance. Use the documented precision before diagnosing a black image as a prompt failure. Check both edge length and total pixel count when selecting a resolution.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Access | API, Downloadable |
| Model identifiers | cogview4-6bzai-org/CogView4-6Bcogview-4 |
| Resolution | Each side must be 512–2048 pixels and divisible by 32; total pixels must not exceed 2²¹.CogView4-6B official documentation |
| Precision | BF16 and FP32; the card warns that FP16 overflows.CogView4-6B official documentation |
| Licence | Apache 2.0.CogView4-6B official documentation |
| API | The catalogue separately lists CogView-4.Current Z.ai API catalogue |