What Is CogView4?
CogView4 is Z.ai’s open text-to-image model for long descriptive prompts. The hosted operation exposes custom dimensions, negative prompts, CFG guidance, step count and deterministic seeds for traditional diffusion-style control.
What Is CogView4 Best For?
- Long descriptive prompts
- Stylised illustration
- Controlled composition tests
- Open-model workflows
How to Use CogView4
- Use a complete descriptive prompt.
- Add a concise negative prompt.
- Compare seeds at 1K.
- Render the selected composition at 2K if needed.
CogView4 Settings Explained
Steps
50 is the documented default; lower it only when faster drafts are more important than finish.
Negative Prompt
Remove unwanted objects, blur or watermarks without changing the main brief.
The panel above shows only the parameters CogView4 actually supports. Switch versions and unsupported controls disappear rather than sitting there doing nothing.
CogView4 Prompt Examples
Detailed vehicle scene
Cherry-red sports coupe parked on a coastal road at midday, polished body reflecting the blue sea, black racing rims, low camera angle, realistic commercial photography
Illustration
Layered paper-cut illustration of a mountain railway in winter, cobalt shadows, warm carriage windows, intricate handcrafted edges
CogView4 Test Results
Testing in progress
Every model runs the same eight-category prompt set — portrait, product, poster text, anime character, interior, multi-reference, image editing and character consistency — recording generation time, success rate, text accuracy and identity retention. That run has not finished for CogView4, so this page shows no scores. We do not publish numbers we have not measured.
CogView4 Limitations
- Text-to-image only
- The 50-step default is slower than distilled models
- The hosted per-megapixel price makes 2K a final-only tier
CogView4 Pricing and Credits
Credits scale with resolution and image count. The Generate button always shows what this run costs.
1K
6 credits / image
2K
24 credits / image
Failed generations cost 0 credits.
Commercial Use and Image Rights
Commercial use is subject to the CogView model licence and the selected service terms.
- Model used: CogView4
- Model developer: Z.ai
- The inference route is managed internally and may change without changing the selected model
- Uploads are sent only to the configured inference service needed to complete the generation
- You can delete any generation from your history at any time
Frequently Asked Questions
Who develops CogView4?+
The official repository is maintained by Z.ai and hosts the CogView model family.
Does a longer prompt help?+
The model documentation specifically recommends detailed prompts for better results.
Model Updates and Changelog
- 2026-08-25 —— Added the exact CogView4 endpoint with full CFG, steps and negative-prompt mapping.
Related Models and Tools
AI Image Generator
One prompt box, every major model. Describe it, pick a model, generate.
Poster Generator
Posters with headlines that come out right the first time.
GLM Image
Text To Image · Image To Image · Image Editing
Qwen Image 3 Pro
Text To Image · Image To Image · Image Editing
Qwen Image 3
Text To Image · Image To Image · Image Editing
Qwen Image Max
Text To Image · Image To Image · Image Editing