> ## Documentation Index > Fetch the complete documentation index at: https://docs.geekai.co/llms.txt > Use this file to discover all available pages before exploring further. # 图像生成 ### 支持的模型 目前仅以下模型支持在对话中进行图片生成与编辑： * `gemini-2.5-flash-image` * `gemini-2.5-flash-image-preview` * `gemini-2.0-flash-preview-image-generation` * `gpt-4o-image` * `gpt-5-all` * `midjourney-chat` 本教程只是基本示例，关于 Gemini 画图模型更详细的教程请参考 [Gemini 2.5 Flash 画图模型教程](https://docs.geekai.co/cn/docs/image/google/gemini-2.5-flash-image)。 ### 生成图片 以下是通过对话画图的请求示例，和普通文本对话并无不同： ```bash curl theme={null} curl --location --request POST 'https://geekai.co/api/v1/chat/completions' \ --header 'Authorization: Bearer $GEEKAI_API_KEY' \ --header 'Content-Type: application/json' \ --data-raw '{ "model": "gemini-2.5-flash-image", "messages": [ { "role": "user", "content": "画一只可爱的小猫在草丛中玩耍" } ] }' ``` ```bash python theme={null} # 先安装 OpenAI SDK: `pip3 install openai` from openai import OpenAI client = OpenAI(api_key="$GEEKAI_API_KEY", base_url="https://geekai.co/api/v1") response = client.chat.completions.create( model="gemini-2.5-flash-image", messages=[ {"role": "user", "content": "画一只可爱的小猫在草丛中玩耍"}, ] ) print(response.choices[0].message.content) ``` ```bash javascript theme={null} // 先安装 OpenAI SDK: `npm install openai` import OpenAI from "openai"; const openai = new OpenAI({ baseURL: 'https://geekai.co/api/v1', apiKey: '$GEEKAI_API_KEY' }); async function main() { const completion = await openai.chat.completions.create({ messages: [{ role: "user", content: "画一只可爱的小猫在草丛中玩耍" }], model: "gemini-2.5-flash-image", }); console.log(completion.choices[0].message.content); } main(); ``` ```bash go theme={null} package main import ( "bytes" "encoding/json" "fmt" "io" "net/http" ) func main() { requestBody := map[string]interface{}{ "model": "gemini-2.5-flash-image", "messages": []interface{}{ map[string]interface{}{ "role": "user", "content": "画一只可爱的小猫在草丛中玩耍", }, } } jsonData, err := json.Marshal(requestBody) if err != nil { panic(err) } client := &http.Client{} req, err := http.NewRequest("POST", "https://geekai.co/api/v1/chat/completions", bytes.NewBuffer(jsonData)) if err != nil { panic(err) } req.Header.Set("Authorization", "Bearer $GEEKAI_API_KEY") req.Header.Set("Content-Type", "application/json") resp, err := client.Do(req) if err != nil { panic(err) } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { panic(err) } fmt.Println(string(body)) } ``` `gpt-4o-image`、`gpt-5-all`、`midjourney-chat` 支持流式输出，`gemini-2.5-flash-image-preview`、`gemini-2.5-flash-image` 不支持流式输出。 在响应对象中，`image.url` 字段中会包含生成的图片 URL 地址，你可以获取进行显示，也可以获取 `content` 字段值直接在支持 Markdown 渲染的组件中显示： ```json theme={null} { "id": "1061a101-5fe0-44bd-9281-6fb6565dbd0a", "choices": [ { "index": 0, "message": { "role": "assistant", "content": "好的，这是一只在草丛中玩耍的可爱小猫： \n![](https://static.geekai.co/image/2025/09/22/81e1cc5fc52a70c738f99b9037957bb4.png)\n", "image": { "url": "https://static.geekai.co/image/2025/09/22/81e1cc5fc52a70c738f99b9037957bb4.png" } }, "finish_reason": "stop" } ], "model": "gemini-2.5-flash-image", "object": "chat.completion", "usage": { ... } } ``` ### 图片编辑 如果你想要以图生图，或者在已有的图片上进行修改，可以结合[图片对话](https://docs.geekai.co/cn/docs/chat/image)请求实现： ```bash curl theme={null} curl --location --request POST 'https://geekai.co/api/v1/chat/completions' \ --header 'Authorization: Bearer {YOUR_GEEKAI_API_KEY}' \ --header 'Content-Type: application/json' \ --data-raw '{ "model": "gemini-2.5-flash-image", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "将图片中的中文替换成英文GeekAI，字体风格大小保持不变" }, { "type": "image_url", "image_url": { "url": "https://static.geekai.co/icon/geekai-logo-main-tr.png" } } ] } ] }' ``` ```bash python theme={null} # 先安装 OpenAI SDK: `pip3 install openai` from openai import OpenAI client = OpenAI(api_key="$GEEKAI_API_KEY", base_url="https://geekai.co/api/v1") response = client.chat.completions.create( model="gemini-2.5-flash-image", messages=[ {"role": "user", "content": [ {"type": "text", "text": "将图片中的中文替换成英文GeekAI，字体风格大小保持不变"}, {"type": "image_url", "image_url": {"url": "https://static.geekai.co/icon/geekai-logo-main-tr.png"}} ]} ] ) print(response.choices[0].message.content) ``` ```bash javascript theme={null} // 先安装 OpenAI SDK: `npm install openai` import OpenAI from "openai"; const openai = new OpenAI({ baseURL: 'https://geekai.co/api/v1', apiKey: '$GEEKAI_API_KEY' }); async function main() { const completion = await openai.chat.completions.create({ messages: [{ role: "user", content: [ { "type": "text", "text": "将图片中的中文替换成英文GeekAI，字体风格大小保持不变" }, { "type": "image_url", "image_url": { "url": "https://static.geekai.co/icon/geekai-logo-main-tr.png" } } ]}], model: "gemini-2.5-flash-image", }); console.log(completion.choices[0].message.content); } main(); ``` ```bash go theme={null} package main import ( "bytes" "encoding/json" "fmt" "io" "net/http" ) func main() { requestBody := map[string]interface{}{ "model": "gemini-2.5-flash-image", "messages": []interface{}{ map[string]interface{}{ "role": "user", "content": []interface{}{ map[string]interface{}{ "type": "text", "text": "将图片中的中文替换成英文GeekAI，字体风格大小保持不变", }, map[string]interface{}{ "type": "image_url", "image_url": map[string]string{ "url": "https://static.geekai.co/icon/geekai-logo-main-tr.png", }, }, }, }, } } jsonData, err := json.Marshal(requestBody) if err != nil { panic(err) } client := &http.Client{} req, err := http.NewRequest("POST", "https://geekai.co/api/v1/chat/completions", bytes.NewBuffer(jsonData)) if err != nil { panic(err) } req.Header.Set("Authorization", "Bearer $GEEKAI_API_KEY") req.Header.Set("Content-Type", "application/json") resp, err := client.Do(req) if err != nil { panic(err) } defer resp.Body.Close() body, err := io.ReadAll(resp.Body) if err != nil { panic(err) } fmt.Println(string(body)) } ``` 在上面的请求中，`image_url` 字段的 `url` 属性可以是任何有效的图片 URL 地址或者 Base64 编码的图片数据。 ### 解决 Gemini 不出图问题 如果在使用 Gemini 画图模型进行图像生成时遇到不出图的问题，可以尝试以下解决方案： 1. **设置系统提示**：在请求中通过系统提示强化画图诉求，如 `你是一个AI画图机器人，请根据用户需求进行画图`； 2. **调整参数设置**：在请求参数中将 `image_generation` 设置为 `true`，表示这条请求强制进行画图。 ```bash theme={null} curl --location --request POST 'https://geekai.co/api/v1/chat/completions' \ --header 'Authorization: Bearer {YOUR_GEEKAI_API_KEY}' \ --header 'Content-Type: application/json' \ --data-raw '{ "model": "gemini-2.5-flash-image-preview", "messages": [ { "role": "system", "content": "你是一个AI画图机器人，请根据用户需求进行画图" }, { "role": "user", "content": "一只可爱的小猫在草丛中玩耍" } ], "image_generation": true }' ``` ### 转到 Response API OpenAI 全新的 Response API 支持在对话中引入画图工具进行图像生成和编辑，并支持除 `gpt-4o` 以外的更多模型以及更丰富的参数设置，关于如何在 Response API 中进行图像生成和编辑，请参考[Response API 画图文档](https://docs.geekai.co/cn/docs/response/image_generation)。