Examples for using imagen-4-fast through RunAPI from agent tools or API calls. Copy a prompt, then use it in Claude Code, Codex, Cursor, Windsurf, or your backend.
1. claude mcp add runapi -s user -- npx -y @runapi.ai/mcp
2. Restart Claude Code
3. Paste this prompt: Generate an image: "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
1. codex plugin install runapi-mcp@agents
2. Restart Codex
3. Paste this prompt: Generate an image: "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
1. npx @runapi.ai/mcp init cursor
2. Restart Cursor
3. Paste this prompt: Generate an image: "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
1. npx @runapi.ai/mcp init windsurf
2. Restart Windsurf
3. Paste this prompt: Generate an image: "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
curl -X POST https://runapi.ai/api/v1/imagen_4/text_to_image \
-H "Authorization: Bearer $RUNAPI_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'JSON'
{
"model": "imagen-4-fast",
"prompt": "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
}
JSON
import { Imagen4Client } from "@runapi.ai/imagen-4";
const client = new Imagen4Client({
apiKey: process.env.RUNAPI_API_KEY,
});
const result = await client.textToImage.run({
"model": "imagen-4-fast",
"prompt": "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
});
console.log(result.id);
require "runapi/imagen_4"
client = RunApi::Imagen4::Client.new
result = client.text_to_image.run(
model: "imagen-4-fast",
prompt: "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
)
puts result.id
package main
import (
"context"
"fmt"
"log"
"net/http"
"os"
"strings"
)
func main() {
body := strings.NewReader("{\"model\":\"imagen-4-fast\",\"prompt\":\"Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture.\"}")
req, err := http.NewRequestWithContext(context.Background(), http.MethodPost, "https://runapi.ai/api/v1/imagen_4/text_to_image", body)
if err != nil {
log.Fatal(err)
}
req.Header.Set("Authorization", "Bearer "+os.Getenv("RUNAPI_API_KEY"))
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
fmt.Println(resp.Status)
}
imagen-4-fast/api/v1/imagen_4/text_to_imageGet API Key
Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture.
curl -X POST https://runapi.ai/api/v1/imagen_4/text_to_image \
-H "Authorization: Bearer $RUNAPI_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'JSON'
{
"model": "imagen-4-fast",
"prompt": "Vintage travel poster for Kyoto, Japan in the style of 1950s airline advertisements. A bold composition showing a vermillion torii gate framing a view of a pagoda surrounded by cherry blossom trees in full bloom. Soft pink petals scatter across the foreground. Mount Hiei is visible as a simple silhouette in the background. The text 'KYOTO' appears at the bottom in a retro sans-serif typeface with 'Japan' in smaller elegant script below. Limited color palette: vermillion red, cherry blossom pink, deep green, cream, and touches of gold. Flat color areas with subtle screen-print texture."
}
JSON
FAQ
Using imagen-4-fast prompts
What is %{model}?
%{model} is available through RunAPI as part of the unified model catalog. These prompts show practical input patterns that agents and backend services can reuse.
How do I use these prompts?
Copy any prompt and paste it into Claude Code, Codex, Cursor, or Windsurf after installing the RunAPI MCP Server. Developers can also copy the API example and send the prompt directly.
Do these prompts cost money to browse?
Browsing and copying prompt examples is free. Generation requests only cost money when you call a RunAPI model with your API key.
Can I adapt the prompts for production?
Yes. Treat each prompt as a starting point, then add your brand rules, output dimensions, safety constraints, and application-specific context before using it in production.