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ModelFold
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flux-3/klein-text-to-image

可商用Black Forest Labs 系列模型之一 —— 浏览全部模型 →
⚡ 通过 API 调用

Flux 3 is Black Forest Labs' new generation of image models. ModelFold starts with Flux 3 Klein for fast text-to-image generation and multi-reference image editing up to 4K, with more Flux 3 models to follow.

模型类型：

定价： 1K 2 积分/张，2K 3 积分/张，4K 8 积分/张。

在线试跑

表单已按模型规格预填 —— 可直接运行，也可先改任意字段。

可用
提示词

Describe the image to generate, in any language (up to 5,000 characters).

width256

Output image width. Both must be passed at the same time; JSON integers, each side ≥256 and ≤4096; aspect ratio between 1:2.5 and 2.5:1. Once passed, aspect_ratio and resolution are ignored.

height640

Output image height. Both must be passed at the same time; JSON integers, each side ≥256 and ≤4096; aspect ratio between 1:2.5 and 2.5:1. Once passed, aspect_ratio and resolution are ignored.

画面比例

Output aspect ratio.

分辨率

Output resolution: 1K, 2K or 4K. Higher resolutions cost more and take longer.

output_format

Output image format.

num_images1

Number of images to generate with the same settings.

随机种子

Random seed. Omit for a random result; with the same seed and parameters the result is reproducible. When generating multiple images, image i uses seed + i. 0-2147483647

enhance_prompt

Rewrites the prompt into a fuller description before generating, which noticeably improves quality. Enabled by default; pass false to turn it off. Recommended to turn off when your request must be followed literally (exact text edits, "keep X unchanged and only change Y", fixed compositions) or when latency matters.

nsfw_checker

A configurable parameter. Defaults to true in the Playground.

无法保证所有内容都能被过滤；如果对结果不满意，需要自行处理。

余额： —预估预扣8 积分（生成前为预估，完成后显示实际扣除积分）
结果
历史

该变体的示例输出 —— 点「运行」生成你自己的。

费率表
Klein Text To Image
1K2 积分 / 张
2K3 积分 / 张
4K8 积分 / 张
Klein Edit Image
1K2 积分 / 张
2K3 积分 / 张
4K8 积分 / 张
快速开始
POST/v1/images/generations
curl https://modelfold.ai/v1/images/generations \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"flux-3/klein-text-to-image","prompt":"..."}'