MCP / Models / Image generation

Imagen 4 Fast MCP: quick realistic images with no API key

Google Imagen 4 Fast is the quickest, lowest-cost Imagen 4 tier: realistic images from a prompt, up to four per run at 1K or 2K. Run it from Claude Code, Codex, Cursor or any MCP client through one FlyMy.AI MCP, or call its API.

Use Imagen 4 FastInputs and price
No API key$0.02 / runText to imageGoogleCommercial use
Imagen 4 Fast sample from the FlyMy.AI catalog

$ YOUR NEXT RUN

Claude CodeCodexCursorAny agent

Use Imagen 4 Fast in your assistant

Paste this prompt into Claude Code, Codex, Cursor or any agent. It reads the guide and helps you connect.

Read https://flymy.ai/skill.md and https://flymy.ai/mcp/models/imagen-4-fast.md. Help me connect the FlyMy.AI MCP to this assistant, then run Imagen 4 Fast (flymyai/imagen-4-fast) for this task: Generate a 9:16 product photo of a matte black headphone set floating on a purple gradient with Imagen 4 Fast at 2K.
Open FlyMy.AIDownload brief

What Imagen 4 Fast does

Imagen 4 Fast trades a little detail for speed and price, which suits drafts, thumbnails and large batches. It takes the same inputs as Imagen 4: number_of_images, image_size, aspect_ratio and person_generation. Images carry Google's SynthID watermark.

Imagen 4 Fast inputs

Every input of flymyai/imagen-4-fast as its live schema lists them. Returns images (file).

InputType, values and default
# prompt
string required
# number_of_images
integer optional Allowed: 1 to 4 Default: 1
# image_size
string optional Allowed: 1K, 2K
# aspect_ratio
string optional Allowed: 1:1, 3:4, 4:3, 9:16, 16:9
# person_generation
string optional Allowed: dont_allow, allow_adult

Ask your agent

Requests to paste as they are, once the FlyMy.AI MCP is connected.

“Generate a 9:16 product photo of a matte black headphone set floating on a purple gradient with Imagen 4 Fast at 2K.”runs flymyai/imagen-4-fast
“Make three versions of a poster for a yoga class in the park with Imagen 4 Fast in one run and send me the links.”runs flymyai/imagen-4-fast
“Create a risograph illustration of a fox running through fresh snow at sunrise with Imagen 4 Fast.”runs flymyai/imagen-4-fast

Imagen 4 Fast price

$0.02 per run. A run at the default settings costs $0.02. Billed to your FlyMy.AI balance; no seats, no subscription and no minimum.

See usage pricing →

Call Imagen 4 Fast from code

The same model, from an agent or from your own code. Keys stay in your FlyMy.AI account.

From an agent, through the MCP

The agent calls get_model_schema, then run_model with:

{
  "endpoint_id": "flymyai/imagen-4-fast",
  "input": {
    "prompt": "A ceramic mug on a sunlit kitchen counter, product photo"
  }
}

From your code, over HTTP

Form fields, not JSON; files go as uploads or public URLs. The answer is a prediction_id; read the result at https://api.flymy.ai/api/v1/flymyai/imagen-4-fast/predict/async/result/?request_id=<prediction_id>.

curl -X POST https://api.flymy.ai/api/v1/flymyai/imagen-4-fast/predict/async/ \
  -H "X-API-KEY: $FLYMYAI_API_KEY" \
  -F 'prompt=A ceramic mug on a sunlit kitchen counter, product photo'

Questions about Imagen 4 Fast

Do I need a Google API key for Imagen 4 Fast?

No. Imagen 4 Fast runs on FlyMy.AI's account, so you need no Google key or plan: sign in to FlyMy.AI once and each run is billed to your FlyMy.AI balance.

How much does Imagen 4 Fast cost?

$0.02 per run. There is no subscription or minimum; the price comes from FlyMy.AI billing and was checked on 2026-11-09.

How do I use Imagen 4 Fast in Claude Code, Codex or Cursor?

Add the FlyMy.AI MCP with one command and sign in, then ask in plain words, for example: "Generate a 9:16 product photo of a matte black headphone set floating on a purple gradient with Imagen 4 Fast at 2K." Your agent reads the inputs with get_model_schema and runs flymyai/imagen-4-fast with run_model.

What does Imagen 4 Fast need as input?

Imagen 4 Fast requires prompt; it also takes 4 optional inputs, each listed on this page with its allowed values and default.

Can I call Imagen 4 Fast from my own code?

Yes. Send form fields to https://api.flymy.ai/api/v1/flymyai/imagen-4-fast/predict/async/ with your FlyMy.AI API key in the X-API-KEY header.

Go to the source

Imagen 4 Fast in the playground →Model endpoints in the docs →Image generation guide →Every model on FlyMy.AI →Every MCP in the catalog →Usage pricing →

From the FlyMy.AI model catalog of 2026-11-09: inputs from the model's live schema, prices from FlyMy.AI billing. Requests are examples to paste, not recorded runs.