GPT Image Hub API 文件

除模型列表外，所有 v1 介面都需要在 Authorization 請求標頭中攜帶 API 金鑰。原始金鑰只會在建立時顯示一次；伺服器只保存雜湊值。

Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

模型介面會返回模型 ID、服務商、支援的畫幅比例、支援的畫質、參考圖限制和每張圖的點數消耗。

curl https://www.gptimagehub.com/api/v1/models

curl https://www.gptimagehub.com/api/v1/images/generations \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2",
    "prompt": "A cinematic product photo with premium studio lighting",
    "size": "1024x1024",
    "quality": "high",
    "n": 1
  }'

curl https://www.gptimagehub.com/api/v1/images/generations \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -F "model=gpt-image-2" \
  -F "prompt=Use the reference image and render it as a premium studio product shot" \
  -F "size=1024x1024" \
  -F "quality=high" \
  -F "n=1" \
  -F "reference_image=@./reference.png"

點數介面會返回該 API 金鑰所屬使用者的餘額、帳戶類型和即將到期的點數資訊。

curl https://www.gptimagehub.com/api/v1/credits \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

圖像生成介面預設會等待生成完成。設定 async 為 true 可以立即取得 generation id，並透過 /api/v1/generations/:generationId 輪詢結果。生成前會扣除點數；如果服務商生成失敗或返回的圖片少於請求數量，會自動退還相應點數。

JSON 請求

curl https://www.gptimagehub.com/api/v1/images/generations \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2",
    "prompt": "A cinematic product photo of a transparent perfume bottle on black marble",
    "size": "1024x1024",
    "quality": "high",
    "n": 1
  }'

非同步任務

curl https://www.gptimagehub.com/api/v1/images/generations \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-image-2",
    "prompt": "A cinematic product photo with premium studio lighting",
    "size": "1024x1024",
    "quality": "high",
    "n": 1,
    "async": true
  }'

{
  "object": "image_generation",
  "id": "clx_generation_log_id",
  "status": "queued",
  "model": "gpt-image-2",
  "aspect_ratio": "1:1",
  "quality": "1K",
  "created_at": "2026-04-30T08:00:00.000Z",
  "images": [],
  "usage": {
    "credits": 0,
    "credits_requested": 8
  },
  "poll_url": "https://www.gptimagehub.com/api/v1/generations/clx_generation_log_id"
}

參考圖請求

curl https://www.gptimagehub.com/api/v1/images/generations \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -F "model=gpt-image-2" \
  -F "prompt=Use the reference image and render it as a premium studio product shot" \
  -F "size=1024x1024" \
  -F "quality=high" \
  -F "n=1" \
  -F "reference_image=@./reference.png"

回應

{
  "object": "image_generation",
  "id": "clx_generation_log_id",
  "status": "succeeded",
  "model": "gpt-image-2",
  "aspect_ratio": "1:1",
  "quality": "1K",
  "images": [
    {
      "id": "clx_image_id",
      "object": "image",
      "url": "https://cdn.example.com/generations/user/image.png",
      "created_at": "2026-04-30T08:00:00.000Z"
    }
  ],
  "usage": {
    "credits": 8
  },
  "balance": {
    "credits": 112,
    "account_type": "PRO",
    "next_expiration": null
  }
}

使用生成介面返回的 ID 查詢保存的生成日誌和圖片 URL。API 金鑰只能讀取同一使用者名下的生成記錄。

curl https://www.gptimagehub.com/api/v1/generations/clx_generation_log_id \
  -H "Authorization: Bearer gih_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

{
  "error": {
    "message": "Invalid request body",
    "code": "invalid_request"
  }
}

• 同步生成介面在生產環境最長可執行 800 秒。
• n 必須介於 1 和 4 之間。
• 參考圖支援 PNG、JPG、JPEG 和 WebP。單個檔案最大 50MB。
• 最大參考圖數量由每個模型的 reference_image_limit 決定。
• 非同步模式會返回 202 和 poll_url。目前版本暫不包含 webhook 或獨立的 API 速率限制。