integrate-image

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English
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Chinese

Integrate Image Generation

集成图像生成

PREREQUISITE: Run
+check-compatibility
first. Run
+fetch-api-reference
to load the latest API reference before integrating. Requires
+setup-api-key
for API credentials. Requires
+integrate-uploads
when the user has local reference images.
Help users add Runway image generation to their server-side code.
前置条件: 请先运行
+check-compatibility
。集成前运行
+fetch-api-reference
加载最新的API参考文档。需要运行
+setup-api-key
配置API凭证。如果用户有本地参考图,需要先执行
+integrate-uploads
帮助用户将Runway图像生成功能接入到服务端代码中。

Available Models

可用模型

ModelBest ForCostSpeed
gen4_image
Highest quality5 credits (720p), 8 credits (1080p)Standard
gen4_image_turbo
Fast generation2 creditsFast
gemini_2.5_flash
Google Gemini model5 creditsStandard
Model selection guidance:
  • Default recommendation:
    gen4_image
    — best quality
  • Budget/speed:
    gen4_image_turbo
    — cheapest and fastest
模型适用场景费用速度
gen4_image
最高画质5积分(720p),8积分(1080p)标准
gen4_image_turbo
快速生成2积分
gemini_2.5_flash
谷歌Gemini模型5积分标准
模型选择指南:
  • 默认推荐:
    gen4_image
    — 画质最佳
  • 预算/速度优先:
    gen4_image_turbo
    — 成本最低、速度最快

Endpoint:
POST /v1/text_to_image

接口:
POST /v1/text_to_image

Basic Text-to-Image

基础文生图

javascript
// Node.js SDK
import RunwayML from '@runwayml/sdk';

const client = new RunwayML();

const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: 'A serene Japanese garden with cherry blossoms and a koi pond',
  ratio: '1280:720'
}).waitForTaskOutput();

const imageUrl = task.output[0];
python
undefined
javascript
// Node.js SDK
import RunwayML from '@runwayml/sdk';

const client = new RunwayML();

const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: 'A serene Japanese garden with cherry blossoms and a koi pond',
  ratio: '1280:720'
}).waitForTaskOutput();

const imageUrl = task.output[0];
python
undefined

Python SDK

Python SDK

from runwayml import RunwayML
client = RunwayML()
task = client.text_to_image.create( model='gen4_image', prompt_text='A serene Japanese garden with cherry blossoms and a koi pond', ratio='1280:720' ).wait_for_task_output()
image_url = task.output[0]
undefined
from runwayml import RunwayML
client = RunwayML()
task = client.text_to_image.create( model='gen4_image', prompt_text='A serene Japanese garden with cherry blossoms and a koi pond', ratio='1280:720' ).wait_for_task_output()
image_url = task.output[0]
undefined

With Reference Images

带参考图生成

Reference images let you guide the generation with visual references. Use
@Tag
syntax in the prompt to reference specific images.
javascript
const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: '@EiffelTower painted in the style of @StarryNight',
  referenceImages: [
    { uri: 'https://example.com/eiffel-tower.jpg', tag: 'EiffelTower' },
    { uri: 'https://example.com/starry-night.jpg', tag: 'StarryNight' }
  ],
  ratio: '1280:720'
}).waitForTaskOutput();
python
task = client.text_to_image.create(
    model='gen4_image',
    prompt_text='@EiffelTower painted in the style of @StarryNight',
    reference_images=[
        {"uri": "https://example.com/eiffel-tower.jpg", "tag": "EiffelTower"},
        {"uri": "https://example.com/starry-night.jpg", "tag": "StarryNight"}
    ],
    ratio='1280:720'
).wait_for_task_output()
If the user has local reference images, upload them first with
+integrate-uploads
:
javascript
import fs from 'fs';

const refUpload = await client.uploads.createEphemeral(
  fs.createReadStream('/path/to/reference.jpg')
);

const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: 'A portrait in the style of @Reference',
  referenceImages: [
    { uri: refUpload.runwayUri, tag: 'Reference' }
  ],
  ratio: '1280:720'
}).waitForTaskOutput();
参考图可以通过视觉参考引导生成效果。在提示词中使用
@标签
语法来引用指定图片。
javascript
const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: '@EiffelTower painted in the style of @StarryNight',
  referenceImages: [
    { uri: 'https://example.com/eiffel-tower.jpg', tag: 'EiffelTower' },
    { uri: 'https://example.com/starry-night.jpg', tag: 'StarryNight' }
  ],
  ratio: '1280:720'
}).waitForTaskOutput();
python
task = client.text_to_image.create(
    model='gen4_image',
    prompt_text='@EiffelTower painted in the style of @StarryNight',
    reference_images=[
        {"uri": "https://example.com/eiffel-tower.jpg", "tag": "EiffelTower"},
        {"uri": "https://example.com/starry-night.jpg", "tag": "StarryNight"}
    ],
    ratio='1280:720'
).wait_for_task_output()
如果用户有本地参考图,请先使用
+integrate-uploads
上传:
javascript
import fs from 'fs';

const refUpload = await client.uploads.createEphemeral(
  fs.createReadStream('/path/to/reference.jpg')
);

const task = await client.textToImage.create({
  model: 'gen4_image',
  promptText: 'A portrait in the style of @Reference',
  referenceImages: [
    { uri: refUpload.runwayUri, tag: 'Reference' }
  ],
  ratio: '1280:720'
}).waitForTaskOutput();

Common Parameters

常用参数

ParameterTypeDescription
model
stringModel ID (required)
promptText
stringText description of the image (required)
ratio
stringAspect ratio, e.g.
'1280:720'
,
'720:1280'
,
'1080:1080'
referenceImages
arrayOptional. Array of
{ uri, tag }
objects for visual guidance
参数类型说明
model
string模型ID(必填)
promptText
string图片的文本描述(必填)
ratio
string宽高比,例如
'1280:720'
'720:1280'
'1080:1080'
referenceImages
array可选,用于视觉引导的
{ uri, tag }
对象数组

Integration Pattern

集成示例

Example: Express.js API Route

示例:Express.js API路由

javascript
import RunwayML from '@runwayml/sdk';
import express from 'express';

const client = new RunwayML();
const app = express();
app.use(express.json());

app.post('/api/generate-image', async (req, res) => {
  try {
    const { prompt, model = 'gen4_image', ratio = '1280:720', referenceImages } = req.body;

    const task = await client.textToImage.create({
      model,
      promptText: prompt,
      ratio,
      ...(referenceImages && { referenceImages })
    }).waitForTaskOutput();

    res.json({ imageUrl: task.output[0] });
  } catch (error) {
    console.error('Image generation failed:', error);
    res.status(500).json({ error: error.message });
  }
});
javascript
import RunwayML from '@runwayml/sdk';
import express from 'express';

const client = new RunwayML();
const app = express();
app.use(express.json());

app.post('/api/generate-image', async (req, res) => {
  try {
    const { prompt, model = 'gen4_image', ratio = '1280:720', referenceImages } = req.body;

    const task = await client.textToImage.create({
      model,
      promptText: prompt,
      ratio,
      ...(referenceImages && { referenceImages })
    }).waitForTaskOutput();

    res.json({ imageUrl: task.output[0] });
  } catch (error) {
    console.error('Image generation failed:', error);
    res.status(500).json({ error: error.message });
  }
});

Example: Next.js API Route

示例:Next.js API路由

typescript
// app/api/generate-image/route.ts
import RunwayML from '@runwayml/sdk';
import { NextRequest, NextResponse } from 'next/server';

const client = new RunwayML();

export async function POST(request: NextRequest) {
  const { prompt, referenceImages } = await request.json();

  try {
    const task = await client.textToImage.create({
      model: 'gen4_image',
      promptText: prompt,
      ratio: '1280:720',
      ...(referenceImages && { referenceImages })
    }).waitForTaskOutput();

    return NextResponse.json({ imageUrl: task.output[0] });
  } catch (error) {
    return NextResponse.json(
      { error: error instanceof Error ? error.message : 'Generation failed' },
      { status: 500 }
    );
  }
}
typescript
// app/api/generate-image/route.ts
import RunwayML from '@runwayml/sdk';
import { NextRequest, NextResponse } from 'next/server';

const client = new RunwayML();

export async function POST(request: NextRequest) {
  const { prompt, referenceImages } = await request.json();

  try {
    const task = await client.textToImage.create({
      model: 'gen4_image',
      promptText: prompt,
      ratio: '1280:720',
      ...(referenceImages && { referenceImages })
    }).waitForTaskOutput();

    return NextResponse.json({ imageUrl: task.output[0] });
  } catch (error) {
    return NextResponse.json(
      { error: error instanceof Error ? error.message : 'Generation failed' },
      { status: 500 }
    );
  }
}

Example: FastAPI Route

示例:FastAPI路由

python
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from runwayml import RunwayML

app = FastAPI()
client = RunwayML()

class ImageRequest(BaseModel):
    prompt: str
    model: str = "gen4_image"
    ratio: str = "1280:720"
    reference_images: list[dict] | None = None

@app.post("/api/generate-image")
async def generate_image(req: ImageRequest):
    try:
        params = {
            "model": req.model,
            "prompt_text": req.prompt,
            "ratio": req.ratio,
        }
        if req.reference_images:
            params["reference_images"] = req.reference_images

        task = client.text_to_image.create(**params).wait_for_task_output()
        return {"image_url": task.output[0]}
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))
python
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from runwayml import RunwayML

app = FastAPI()
client = RunwayML()

class ImageRequest(BaseModel):
    prompt: str
    model: str = "gen4_image"
    ratio: str = "1280:720"
    reference_images: list[dict] | None = None

@app.post("/api/generate-image")
async def generate_image(req: ImageRequest):
    try:
        params = {
            "model": req.model,
            "prompt_text": req.prompt,
            "ratio": req.ratio,
        }
        if req.reference_images:
            params["reference_images"] = req.reference_images

        task = client.text_to_image.create(**params).wait_for_task_output()
        return {"image_url": task.output[0]}
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))

Tips

注意事项

  • Output URLs expire in 24-48 hours. Download images to your own storage immediately.
  • Reference images use
    @Tag
    syntax
    in the prompt — the tag must match the
    tag
    field in the
    referenceImages
    array.
  • For local files, always upload via
    +integrate-uploads
    first, then use the
    runway://
    URI.
  • gen4_image_turbo
    is the cheapest option at 2 credits per image — good for prototyping.
  • 输出URL有效期为24-48小时。 请立即将图片下载到您自己的存储中。
  • 参考图在提示词中使用
    @标签
    语法
    — 标签必须与
    referenceImages
    数组中的
    tag
    字段匹配。
  • 对于本地文件,请务必先通过
    +integrate-uploads
    上传,再使用返回的
    runway://
    URI。
  • gen4_image_turbo
    是成本最低的选项,每张图仅需2积分 — 适合原型开发阶段使用。