API REFERENCE

图像生成

使用与 OpenAI 兼容的统一端点生成和编辑图像，该端点可扇出到 Flux、Nano-Banana、Wan 等。

POST /v1/images/generations

与 OpenAI 直接兼容 images.generate SDK。特定于提供者的参数与标准参数并存——后端转发每个模型理解的内容。

POSThttps://api.airforce/v1/images/generations

图像模型

…· live

常用参数

Parameter	Type	Required	Description
model	string	Required	Image model ID. Filter /v1/models by output_modalities.includes("image").
prompt	string	Required	Image description.
n	integer	Optional	Number of variations to generate per request. Capped by the model's image_caps.max_n.
size	string	Optional	OpenAI-style WxH, e.g. "1024x1024". Provider-specific values pass through.
aspect_ratio	string	Optional	Alternative to size. "16:9", "1:1", "9:16", … Validated against image_caps.aspect_ratios.
quality	string	Optional	"standard" \| "hd" (OpenAI) or model-specific labels. Validated.
response_format	string	Optional	"url" (default) or "b64_json".
seed	integer	Optional	Reproducibility seed. Same prompt + same seed = same image (where the upstream supports it).
input_images	array	Optional	[{ url? } \| { b64_json? }] for image-to-image / reference / first-frame.
sse	boolean	Optional	When true the response is sent as Server-Sent Events. The full JSON arrives in one event followed by [DONE]. Useful to keep long upstream renders from timing out at proxies.

基本示例

curl https://api.airforce/v1/images/generations \
  -H "Authorization: Bearer sk-air-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "flux-2-dev",
    "prompt": "A cute baby sea otter floating on its back",
    "n": 1,
    "response_format": "url"
  }'

响应形状

Parameter	Type	Required	Description
created	integer	Optional	Unix timestamp.
data	array	Optional	Generated assets.
data[].url	string	Optional	Pre-signed CDN URL when response_format is "url".
data[].b64_json	string	Optional	Base64-encoded PNG when response_format is "b64_json".
data[].revised_prompt	string	Optional	Some models rewrite the prompt before generating; the rewritten version is returned here.

{
  "created": 1715000000,
  "data": [{
    "url": "https://cdn.api.airforce/images/abc123.png"
  }]
}

流媒体版本

经过 sse: true 当通过具有严格空闲超时的中间件进行代理时。响应是一个带有完整 JSON 的 SSE 事件，然后 [DONE].

data: {"created":1715000000,"data":[{"url":"https://cdn.api.airforce/images/abc123.png"}]}

data: [DONE]

图像到图像和参考

型号有 image_caps.max_input_images > 0 接受参考图像。传递 URL 或 Base64 编码的数据。

curl https://api.airforce/v1/images/generations \
  -H "Authorization: Bearer sk-air-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "flux-2-dev",
    "prompt": "Same character, now in a snowy forest",
    "aspect_ratio": "16:9",
    "input_images": [
      {"url": "https://example.com/character.jpg"}
    ]
  }'

特定型号参数

除了上述通用参数之外，个别型号系列还接受额外参数。未知参数按原样转发到上游，因此任何未来特定于提供商的旋钮也无需更新 SDK 即可工作。

Flux

flux-2-klein-4b, flux-2-klein-9b, flux-2-dev

Parameter	Type	Required	Description
aspect_ratio	string	Optional	"1:1", "16:9", "9:16", "4:3", "3:4", "21:9", "9:21".
image_urls	array	Optional	Reference images for img2img mode.

Nano-Banana

nano-banana-2, nano-banana-2-search, nano-banana-pro

Parameter	Type	Required	Description
aspect_ratio	string	Optional	"1:1", "16:9", "9:16", "4:3".
resolution	string	Optional	"512", "1024", "2048".
image_urls	array	Optional	Reference images.

Suno (music via /v1/images/generations)

suno-v4.5, suno-v5 — Suno historically routes through this endpoint. Native music API at /v1/audio/music is preferred for new code.

Parameter	Type	Required	Description
custom	boolean	Optional	Switch from "auto" to fully custom mode.
instrumental	boolean	Optional	Suppress vocals.
style	string	Optional	Genre tag list, e.g. "EDM, Bass".

发现能力

每个图像模型都暴露 image_caps 在 /v1/models 因此客户端可以在发送之前验证输入：

Parameter	Type	Required	Description
image_caps.max_n	integer	Optional	Maximum n per request.
image_caps.aspect_ratios	array	Optional	Allowed aspect_ratio values.
image_caps.qualities	array	Optional	Allowed quality values.
image_caps.sizes	array	Optional	Allowed size values when applicable.
image_caps.max_input_images	integer	Optional	0 = text-only model. Higher = supports reference images.
image_caps.price_per_image_cents	integer	Optional	Cost per generated image. Multiply by n for the total request cost.