> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kymaapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Imagen 4

> Google's default Imagen tier — photoreal humans, sharp text, rich composition. Balanced quality and cost at $0.054/image. Sync API.

## Overview

`imagen-4` is Google's default Imagen 4 tier — the balanced choice between latency and fidelity. Photoreal humans, sharp text rendering, rich compositional reasoning. Recommended starting point for hero/brand assets.

Lives in the Imagen 4 family alongside [`imagen-4-fast`](/models/imagen-4-fast) (drafts) and [`imagen-4-ultra`](/models/imagen-4-ultra) (print-ready). Same style language; pick by quality + cost.

## Specs

| Field            | Value                                            |
| ---------------- | ------------------------------------------------ |
| Model ID         | `imagen-4`                                       |
| Creator          | Google                                           |
| Best for         | Photoreal portraits, branded scenes, hero images |
| Aspect ratios    | `1:1` (default), `3:4`, `4:3`, `16:9`, `9:16`    |
| Sample count `n` | 1–4                                              |
| Pricing mode     | Flat per image                                   |
| Default latency  | \~10–20s                                         |
| Output           | Blob-hosted URL (Vercel CDN)                     |

## Pricing

| Variant    | Provider cost |  Kyma list  |
| ---------- | :-----------: | :---------: |
| `imagen-4` |    \$0.040    | **\$0.054** |

Live source: `GET https://kymaapi.com/v1/pricing`.

## Compared to other image models on Kyma

| Strength          |  imagen-4 | [`imagen-4-fast`](/models/imagen-4-fast) | [`imagen-4-ultra`](/models/imagen-4-ultra) | [`flux-2-pro`](/models/flux-2-pro) | [`gpt-image-2`](/models/gpt-image-2) |
| ----------------- | :-------: | :--------------------------------------: | :----------------------------------------: | :--------------------------------: | :----------------------------------: |
| Default photoreal | **★★★★★** |                    ★★★                   |                    ★★★★★                   |                ★★★★★               |                 ★★★★                 |
| Speed             |    ★★★★   |                   ★★★★★                  |                     ★★★                    |                ★★★★                |                  ★★★                 |
| Cost              |    ★★★★   |                   ★★★★★                  |                     ★★★                    |                ★★★★                |                  ★★★                 |
| Text in image     |    ★★★    |                    ★★★                   |                    ★★★★                    |                 ★★★                |               **★★★★★**              |
| Print 4MP+        |    ★★★    |                    ★★                    |                  **★★★★★**                 |                ★★★★                |                  ★★★                 |

## Use this when

* You want a strong default photoreal output without paying premium pricing.
* The brief is portraits, branded scenes, hero/marketing images.
* Iteration is faster than [`imagen-4-ultra`](/models/imagen-4-ultra) but fidelity beats [`imagen-4-fast`](/models/imagen-4-fast).

## Pick something else when

* You need **print-ready** at 4MP+ → [`imagen-4-ultra`](/models/imagen-4-ultra).
* You need **legible text** in the image → [`gpt-image-2`](/models/gpt-image-2) high tier.
* You need **multi-reference blending** (up to 10 source images) → [`flux-2-pro`](/models/flux-2-pro).
* You need to **edit** an existing image → [`nano-banana`](/models/nano-banana).

## Example

```bash theme={null}
curl -X POST https://kymaapi.com/v1/images/generations \
  -H "Authorization: Bearer $KYMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "imagen-4",
    "prompt": "A photoreal golden retriever puppy in a field of sunflowers at sunset",
    "size": "1024x1024",
    "n": 1
  }'
```

The endpoint is async — poll [`GET /v1/jobs/{id}`](/api-reference/images-generations#poll-for-the-result) until status is `succeeded`.