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Models/Google/Imagen 4 Ultra
Googleimage1 route

Imagen 4 Ultra

Google's Imagen 4 Ultra: text to image.

imagen-4-ultraGet API key

Pricing per image

SizePer image
All settings$0.088 credits

Billed in credits per image (100 credits = $1, rounded up to a whole credit). Charged once, only for the route that succeeds. Failed attempts cost $0.00.

Request

# 1. Submit a generation and keep its id (a refusal prints {"error": {"message": ...}})
RESP=$(curl -s https://api.revana.si/v1/generations \
  -H "Authorization: Bearer $REVANA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "imagen-4-ultra",
    "input": {
      "prompt": "A product photo of a ceramic coffee cup on a linen tablecloth, soft morning light"
    }
  }')
echo "$RESP"
ID=$(echo "$RESP" | jq -r .id)

# 2. Poll it until status is "succeeded" or "failed" (a failed one has error.message)
curl -s https://api.revana.si/v1/generations/$ID \
  -H "Authorization: Bearer $REVANA_API_KEY"

# 3. Download the file once it has succeeded
curl -L https://api.revana.si/v1/generations/$ID/content \
  -H "Authorization: Bearer $REVANA_API_KEY" \
  -o out.png

Set REVANA_API_KEY to your key. Full reference in the quickstart.

Options

Tasks
Text to image
Billing unit
per image
Model id
imagen-4-ultra

1 route

One route today. If it fails you are not charged.

About the Imagen 4 Ultra API

How much does the Imagen 4 Ultra API cost?

Imagen 4 Ultra costs $0.08 per image on Revana. You pay in prepaid credits, 100 credits to the dollar, with no subscription or monthly minimum. A generation that fails costs nothing.

How do I call Imagen 4 Ultra from code?

Send POST https://api.revana.si/v1/generations with {"model": "imagen-4-ultra", "input": {...}} and your Revana API key as a Bearer token, poll GET /v1/generations/{id} until it succeeds, then download GET /v1/generations/{id}/content. Every model on Revana takes the same request shape.

What happens if a Imagen 4 Ultra generation fails?

You are charged once, only for the route that delivers. A failed generation costs $0.00.

What can Imagen 4 Ultra do on Revana?

Imagen 4 Ultra supports text to image. A value it does not offer is refused with 422 before anything is charged.

Can my AI agent use Imagen 4 Ultra?

Yes. Connect the Revana MCP server (https://revana.si/api/mcp) to Claude, ChatGPT, Cursor or Codex, or have the agent call the REST API. The agent can list models, get a free quote and generate on your credits.

Compare with similar models

Also as markdown for agents. Every model and price: models.json.