# Imagen 4 Ultra

> Google Imagen 4 highest fidelity. Best detail, slowest gen. Use for hero / print-ready assets.

Human version: https://kymaapi.com/models/imagen-4-ultra
Live JSON: `GET https://kymaapi.com/v1/models` (no auth required)

## Facts

- **Model ID**: `imagen-4-ultra` — pass this as `model` in the request body
- **Creator**: Google
- **Released**: 2025-05-24
- **Price**: $0.081 / image

## Call it

```bash
curl https://kymaapi.com/v1/images/generations \
  -H "Authorization: Bearer $KYMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "imagen-4-ultra", "prompt": "..."}'
```

## Positioning

Google Imagen 4 Ultra is a text-to-image model optimized for maximum visual fidelity. Reach for it when generating print-ready assets, large displays, or premium campaign materials where detail outweighs generation speed.

## About

Imagen 4 Ultra is Google’s highest-fidelity text-to-image model. It generates images with fine-grained detail, accurate lighting, and high resolution suitable for physical print and large-format displays.

On Kyma, the model accepts text prompts and returns image outputs. It operates on a premium cost tier, bills per image, and has the slowest generation speed in the lineup. Prompt caching is enabled, billing repeated prompt prefixes at 10% of the standard input rate. Every request includes automatic failover and returns exact usage costs in the response payload.

The model does not support image inputs, reasoning, vision, or structured outputs. Generation latency is intentionally higher to prioritize quality, making it unsuitable for real-time or high-throughput workflows.

## Use cases

- **Print-ready marketing assets** — Generate high-resolution visuals that maintain sharpness and color accuracy at physical print sizes.
- **Hero banner generation** — Create detailed background images for website headers and premium digital campaigns.
- **High-resolution product mockups** — Produce detailed visual assets requiring precise texture, lighting, and material representation.
- **Archival quality illustrations** — Render long-form creative projects where maximum detail is prioritized over generation speed.

## Not ideal for

Real-time interactive applications, rapid prototyping, or high-volume batch generation where low latency and cost efficiency are primary constraints.

## Pick something else when

- You need faster generation for rapid iteration → `imagen-4-fast`, `imagen-4`
- You need vector graphics or scalable layouts → `recraft-v4-vector`, `recraft-v4-vector-pro`
- You need lower-cost bulk generation → `flux-2-pro`, `nano-banana`
- You need image-to-image editing → `recraft-v4`, `flux-kontext-pro`

## See also

- All models: https://kymaapi.com/models.md
- Pricing: https://kymaapi.com/pricing.md
- Other models by Google: https://kymaapi.com/models?q=Google