Imagen 4.0 Ultra Generate API

google/imagen-4.0-ultra-generate-001
This model delivers the highest quality text-to-image generation, combining ultra-detailed photorealistic visuals with advanced text integration and versatile style options.
Output
$0.078 / gen (variable)
Released
Oct 13, 2025

How to use Imagen 4.0 Ultra Generate API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to google/imagen-4.0-ultra-generate-001.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/images/generations",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "google/imagen-4.0-ultra-generate-001",
      "prompt": "A cat holding a sign that says hello"
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "google/imagen-4.0-ultra-generate-001",
    "prompt": "A cat holding a sign that says hello"
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/images/generations \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/imagen-4.0-ultra-generate-001","prompt":"A cat holding a sign that says hello"}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Imagen 4.0 Ultra Generate API Pricing

TypePrice
Output
$0.078 / gen (variable)

Imagen 4.0 Ultra Generate Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Text-to-Image Arena
1171 (Elo)
Human pairwise preference Elo for image generatorsSourceJuly 12, 2026

Imagen 4.0 Ultra Generate vs other models

ModelInputOutputContextBest for
$0.078 / gen (variable)
Image generation at scale
$0.325 / 1M tokens
$78 / 1M tokens
128K tokens
Image generation at scale
$6.5 / 1M tokens
$39 / 1M tokens
Image generation at scale
Image generation at scale
$0.0195 / MP (variable)
Image generation at scale

Frequently asked questions

Imagen 4.0 Ultra Generate takes image, text as input and returns image.

Imagen 4.0 Ultra Generate became available on October 13, 2025.

Imagen 4.0 Ultra Generate is priced at $0.078 / gen (variable).

Imagen 4.0 Ultra Generate is billed per generation — a fixed charge per output rather than by prompt length.

Yes, Imagen 4.0 Ultra Generate accepts image input as well as a text prompt.

Imagen 4.0 Ultra Generate was built by Google.

Send a request to https://api.aimlapi.com/v1/images/generations with google/imagen-4.0-ultra-generate-001 as the model id.

Yes. Imagen 4.0 Ultra Generate is served through AI/ML API, so the same key and endpoint format used for other models applies.

It is designed for high-quality text-to-image generation with enhanced realism and understanding.

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