Imagen 4 API
Photorealistic text-to-image with precise typography, broad style range, and up to 2K resolution.
curl -X POST https://runapi.ai/api/v1/imagen_4/text_to_image \
-H "Authorization: Bearer $RUNAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "imagen-4-ultra",
"prompt": "Generate a product hero image of a matte-black water bottle on a beige stone surface, soft side light, 2K."
}'
import { Imagen4Client } from "@runapi.ai/imagen-4";
const client = new Imagen4Client();
const result = await client.textToImage.run({
model: "imagen-4-ultra",
prompt: "Generate a product hero image of a matte-black water bottle on a beige stone surface, soft side light, 2K.",
});
<?php
require __DIR__ . "/vendor/autoload.php";
use RunApi\Imagen4\Imagen4Client;
$client = new Imagen4Client();
$result = $client->textToImage->run([
'model' => 'imagen-4-ultra',
'prompt' => 'Generate a product hero image of a matte-black water bottle on a beige stone surface, soft side light, 2K.',
]);
require "runapi/imagen_4"
client = RunApi::Imagen4::Client.new
result = client.text_to_image.run(
model: "imagen-4-ultra",
prompt: "Generate a product hero image of a matte-black water bottle on a beige stone surface, soft side light, 2K."
)
npx skills add runapi-ai/imagen-4 -g
# Claude Code
claude mcp add runapi -s user -- npx -y @runapi.ai/mcp
# Codex
codex plugin install runapi-mcp@agents
# Cursor / Windsurf / VS Code
npx @runapi.ai/mcp init cursor
Imagen 4 is Google's photorealistic image generation model with strong typography rendering and support for resolutions up to 2K. It produces detailed, true-to-life images with accurate color and lighting.
- 多個變體,對應不同速度/品質層級
- Model skill 包含文件、schema 與 setup 備註
- 支援 app-focused coding workflows
- 生成失敗不收費
比較所有 API 變體
為 app 開發安裝 Imagen 4 skill
將模型文件、schema、價格備註與 setup 步驟載入 coding workspace。
# Install the model skill for app development workflows
npx skills add runapi-ai/imagen-4 -g
Install the Imagen 4 skill for this app: 1. Add runapi-ai/imagen-4 with the skills installer. 2. Load SKILL.md in this workspace. 3. Use its docs, schemas, pricing notes, and setup steps when adding model features. 4. Confirm the install path when done.
從 model skill 到第一次結果,只需四步
選擇模型
挑選符合輸出類型、品質門檻與延遲目標的模型與變體。
設定
設定 RunAPI key,並在 coding workspace 安裝 model skill。
開發
使用 skill 指引,在你的 app 內加入模型功能。
接收
透過 task ID 查詢、在支援時串流,或處理 webhook callback。
Imagen 4 API 是甚麼?
Imagen 4 係 Google 最新嘅文字生成圖像模型,提供逼真效果同廣泛風格支援。透過 RunAPI,每個 Imagen 4 變體都共用一把 API 金鑰。
為何透過 RunAPI 使用 Imagen 4 API
一個驗證,對應所有 provider
一組 RunAPI key 即可解鎖整個 catalog。無需分開帳戶,亦無需為每個整合輪換密鑰。
統一定價與計費
按次以 USD 收費,每月結算。失敗的生成不會收費。
內含 schema 的 skill
型別化 schema 與 setup 備註打包在 model skill 內,讓實作從正確契約開始。
常見問題
What is the maximum output resolution?
Up to 2K resolution natively. The ultra variant pushes quality further for brand and marketing use.
How do the fast, standard, and ultra variants differ?
Fast generates in ~2.7 seconds for drafts. Standard balances quality and cost. Ultra delivers maximum photorealism for final production assets.
How accurate is text rendering in Imagen 4?
Imagen 4 has strong typography support — it reliably renders short text like brand names, labels, and headlines within images.
What is the pro remix image variant for?
It takes source images as style or content seeds and generates a new image guided by both the sources and your text prompt.
Does Imagen 4 support transparent backgrounds?
Not natively. For transparent backgrounds, generate the image and then use a background removal tool like Recraft.
我應該先用邊個版本?
先選最平而且符合你質素要求的版本。大多數團隊會先用快速版本,之後再升級到 pro 用於正式生產。
有免費方案嗎?
新帳戶可獲得每個模型的首次呼叫免費。之後按次收費。
你哋支援串流結果嗎?
如有提供串流,RunAPI 會端到端串流。
失敗會點樣收費?
生成失敗不會收費。
輸出有快取嗎?
已生成輸出會儲存,並可按任務 ID 取回。輸入內容不會快取。
可以商業使用嗎?
可以——除非模型授權明確限制,否則每個版本都包括商業使用。相關限制會在版本頁面列明。
限流點樣計?
每個密鑰的限流會跟使用等級而提升。最新限制請參考定價頁。
可以在邊度報告問題?
可以在公開 GitHub repo 開 issue,或者電郵支援。