
Nvidia Cosmos 3 Super Text-to-Image API
Cosmos3 is a collection of Omnimodal world models capable of generating dynamic, high-quality video, image, audio, and action commands from combinations of text, image, video, and action trajectory inputs.
Nvidia Cosmos 3 Super Text-to-Image is developed by NVIDIA. Atlas Cloud (operated by Atlas Cloud AI LLC) provides access to it and does not own it. All trademarks belong to their respective owners.
NVIDIA Cosmos 3 Super Text-to-Image
NVIDIA Cosmos 3 Super Text-to-Image is NVIDIA's flagship text-to-image model built on the Cosmos 3 architecture. Designed for high-fidelity physical world simulation, it delivers photorealistic images with strong prompt adherence, precise spatial reasoning, and support for negative prompting — making it well suited for both creative and technical generation tasks.
🌟 Key Features
🎨 Photorealistic Generation
Produces high-quality images grounded in physical realism, excelling at scenes with natural lighting, accurate materials, and spatial coherence.
📝 Strong Prompt Fidelity
Understands complex, multi-element prompts and accurately reflects subject, environment, style, and compositional instructions in the output.
🚫 Negative Prompting
Accepts a negative_prompt to explicitly exclude unwanted content, artifacts, or styles from the generated image.
📐 Flexible Output Sizes
Choose from six standard presets covering square, portrait, and landscape orientations to match any platform or use case.
🔁 Reproducible Results
Pin a seed value to reproduce or iterate on a specific generation, enabling systematic prompt refinement workflows.
⚙️ Parameters
| Parameter | Required | Description |
|---|---|---|
prompt | ✅ | Text description of the image to generate. Maximum 2,500 characters. |
negative_prompt | ❌ | Content to exclude from the output (default: empty). |
image_size | ❌ | Output size preset: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9 (default). |
num_inference_steps | ❌ | Denoising steps (1–100, default: 28). Higher values improve quality but increase time. |
guidance_scale | ❌ | Prompt adherence strength (1.0–20.0, default: 4.0). Higher values follow the prompt more strictly. |
output_format | ❌ | Output format: jpeg (default) or png. |
seed | ❌ | Random seed for reproducibility. Omit for random results. |
💲 Pricing
| Billing Standard | Price |
|---|---|
| Per image | $0.044 |
Billing is based on the number of images generated.
💡 Prompt Tips
A photorealistic close-up of hands shaping clay on a pottery wheel, warm studio lighting, shallow depth of field, 8K resolution.
- Describe subject, environment, lighting, and camera perspective in a single coherent prompt.
- Use
negative_promptto remove common artifacts:blurry, low quality, distorted, watermark, cartoon. - Keep
guidance_scalebetween 3–5 for natural-looking outputs; increase to 7–10 for strict prompt adherence. - Use
landscape_16_9for cinematic or widescreen compositions. - Fix
seedwhen iterating on prompt wording to isolate the effect of each change.
🎯 Use Cases
- Creative Illustration — Generate concept art, characters, and environments from descriptive text prompts.
- Product Visualization — Produce photorealistic product renders and lifestyle imagery from written descriptions.
- Scene Prototyping — Rapidly visualize environment and set designs before committing to production.
- Social Media Content — Create scroll-stopping visuals in any aspect ratio for any platform.
- Research & Simulation — Leverage Cosmos's physical world grounding for technically accurate scene generation.
- Rapid Iteration — Generate multiple candidates with varied seeds and prompts to explore creative directions quickly.
📝 Notes
promptis the only required field (besidesmodel).output_formatsupportsjpeg(smaller file size) andpng(lossless).- Task status values:
created,processing,completed,failed. - Generated image URLs are returned in
outputsonce status iscompleted.
🔗 Related Models
- NVIDIA Cosmos 3 Super Image-to-Video — Animate a reference image into a video clip with a text prompt.



















