Black Forest Labs develops the Flux family of open-weight image models. Flux Kontext handles in-context editing, style transfer, and character consistency; Flux 2 delivers high-fidelity text-to-image and image editing generation.

跨 provider 共用單一 API 金鑰
Model skill 將文件與 schema 帶入你的 workspace
按次計費，無需承諾
失敗的生成不收費

FEATURES

特色亮點

FASTEST

Flux

P50 ~ <1s

Black Forest Labs 最常用的模型 API 之一。

FRONTIER

Flux 2

Frontier tier

Black Forest Labs 最常用的模型 API 之一。

CHEAPEST

Flux

from $0.030

在 Black Forest Labs 目錄中，起始價格最低。

MODELS

Black Forest Labs 的所有模型

Flux

Black Forest Labs

Image

Flux 圖像 API：Dev、Pro 與 2 Klein 支援文生圖，Dev 與 Pro 支援單圖編輯。

起價 $0.030 / call 查看 →

Flux 2

Black Forest Labs

Image

Text-to-image and remix-image with strong prompt adherence from Black Forest Labs.

起價 $0.050 / call 查看 →

Flux Kontext

Black Forest Labs

Image

In-context image editing — local edits, style transfer, and character-consistent generation.

起價 $0.050 / call 查看 →

QUICKSTART

安裝 Black Forest Labs model skill。

選一個模型並加入其 skill，讓 coding tool 取得文件、schema、價格備註與 setup 步驟。

runapi.ai

curl -X POST https://runapi.ai/api/v1/flux/text_to_image \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux-dev",
  "prompt": "生成一張 4K 產品主視覺圖：啞黑色水瓶置於米色石材表面，柔和側光。"
}'

import { FluxClient } from "@runapi.ai/flux";

const client = new FluxClient();
const result = await client.textToImage.run({
    model: "flux-dev",
    prompt: "生成一張 4K 產品主視覺圖：啞黑色水瓶置於米色石材表面，柔和側光。",
});

require "runapi/flux"

client = RunApi::Flux::Client.new
result = client.text_to_image.run(
    model: "flux-dev",
    prompt: "生成一張 4K 產品主視覺圖：啞黑色水瓶置於米色石材表面，柔和側光。"
)

npx skills add runapi-ai/flux -g

# Claude Code
claude mcp add runapi -s user -- npx -y @runapi.ai/mcp

# Codex
codex plugin install runapi-mcp@agents

# Cursor / Windsurf / VS Code
npx @runapi.ai/mcp init cursor

@runapi.ai/flux v1

REFERENCE

Black Forest Labs 的所有變體

完整價格表 →

Model	Variant	Billing	From
Flux	flux-2-klein	call	$0.030	查看 →
	flux-dev	call	$0.070	查看 →
	flux-pro	call	$0.100	查看 →
Flux 2	flux-2-flex-remix-image	call	$0.140	查看 →
	flux-2-flex-text-to-image	call	$0.140	查看 →
	flux-2-pro-remix-image	call	$0.050	查看 →
	flux-2-pro-text-to-image	call	$0.050	查看 →
Flux Kontext	flux-kontext-max	call	$0.100	查看 →
	flux-kontext-pro	call	$0.050	查看 →