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Black Forest Labs: FLUX.2 Klein 4B

FLUX.2 [klein] 4B is the fastest and most cost-effective model in the FLUX.2 family, optimized for high-throughput use cases while maintaining excellent image quality. Priced at $0.014 per megapixel. 40,960 token context window. Includes independent benchmarks from Artificial Analysis.

模型概览

模型规格

上下文
40,960 tokens
最大输出
36,864 tokens
架构
text+image->image
分词器
Other
知识截止时间
暂未提供
内容审核
OPENROUTER

完整价格

同步自 OpenRouter。Token 价格均按每百万 Token 展示。

图片
$0.014
/megapixel
API

快速调用

通过 OpenRouter 的 OpenAI 兼容 API 调用这个确切的模型 ID。

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"black-forest-labs/flux.2-klein-4b","messages":[{"role":"user","content":"Hello!"}]}'
能力与模态

输入输出

输入
textimage
输出
image
API

支持的 API 参数

seed
可用提供方

1 提供方

在 OpenRouter 查看实时 Provider

Provider 可用性、延迟、吞吐量和路由会持续变化,请前往来源页面查看实时运行数据。

OpenRouter

Black Forest Labs

unknown
上下文
41K
最大输出
37K
输入
免费
输出
免费
缓存读取
暂未提供
缓存写入
暂未提供
black-forest-labs

个模型

全部模型
black-forest-labs logoblack-forest-labs

Black Forest Labs: FLUX Video Upscale

FLUX Video Upscale is a video upscaling model from Black Forest Labs. It enlarges a single source video by 1.5× to 3× while preserving its duration, with an optional prompt...

上下文
暂未提供
输入
text · video
输出
video
输入: 免费输出: 免费每百万 Token
查看模型详情
black-forest-labs logoblack-forest-labs

Black Forest Labs: FLUX.3 Video

FLUX.3 Video is a video generation model from Black Forest Labs. It supports text-to-video, image-guided generation with opening and closing keyframes, and video continuation workflows, making it suited for controlled...

上下文
暂未提供
输入
text · image · video
输出
video
输入: 免费输出: 免费每百万 Token
查看模型详情
black-forest-labs logoblack-forest-labs

Black Forest Labs: FLUX.2 Max

FLUX.2 [max] is the new top-tier image model from Black Forest Labs, pushing image quality, prompt understanding, and editing consistency to the highest level yet. Pricing is as follows, [per...

上下文
47K
输入
text · image
输出
image
输入: 免费输出: 免费每百万 Token
查看模型详情
black-forest-labs logoblack-forest-labs

Black Forest Labs: FLUX.2 Flex

FLUX.2 [flex] excels at rendering complex text, typography, and fine details, and supports multi-reference editing in the same unified architecture. Pricing is as follows, per the docs: We charge $0.06...

上下文
67K
输入
text · image
输出
image
输入: 免费输出: 免费每百万 Token
查看模型详情