一組驗證，全部供應商通用
一把 RunAPI 金鑰就能開通整個目錄。無需分開註冊帳戶，也不用為每個整合各自輪替金鑰。
curl -X POST https://runapi.ai/api/v1/flux_2/remix_image \
-H "Authorization: Bearer $RUNAPI_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "flux-2-max-text-to-image",
"prompt": "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."
}'import { Flux2Client } from "@runapi.ai/flux-2";
const client = new Flux2Client();
const result = await client.remixImage.run({
model: "flux-2-max-text-to-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail.",
});<?php
require __DIR__ . "/vendor/autoload.php";
use RunApi\Flux2\Flux2Client;
$client = new Flux2Client();
$result = $client->remixImage->run([
'model' => 'flux-2-max-text-to-image',
'prompt' => 'Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail.',
]);require "runapi/flux_2"
client = RunApi::Flux2::Client.new
result = client.remix_image.run(
model: "flux-2-max-text-to-image",
prompt: "Generate a photorealistic studio portrait of an astronaut holding a cat, dramatic rim lighting, fine detail."
)npx skills add runapi-ai/flux-2 -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 cursorOVERVIEW
關於 Flux 2
Flux 2 is Black Forest Labs' text-to-image and image remix model known for strong prompt adherence and high visual fidelity. Its pro tier auto-enhances prompts, while the flex tier exposes manual control over inference steps and guidance.
供應商
Black Forest Labs
模態
Image
比較所有 API 變體
PRICING
Flux 2 定價
| Endpoint | 解析度 | 時長 | 價格 | |
|---|---|---|---|---|
| remix_image | 1k, 2k | — | $0.14-$0.24 / image |
顯示 flux-2-flex-remix-image 的定價。其他變體保有各自的 endpoint 定價。
Agent 整合
透過 Agent 執行 Flux 2
運作方式
Flux 2 快速入門
-
選擇模型
挑選符合輸出類型、品質門檻與延遲目標的模型與變體。
-
設定
設定 RunAPI key，並在 coding workspace 安裝 model skill。
-
開發
使用 skill 指引，在你的 app 內加入模型功能。
-
接收
透過 task ID 查詢、在支援時串流，或處理 webhook callback。
為什麼透過 RunAPI 使用 Flux 2 API
統一價格與計費
以美元按次計費，每月結帳。失敗的生成不收費。
內含 schema 的 skill
型別化 schema 與 setup 備註打包在 model skill 內，讓實作從正確契約開始。
Flux 2 常見問題
What is the difference between Pro and Flex?
Pro is the flagship tier with automatic prompt enhancement. Flex gives you control over inference steps and guidance, and supports up to 8 reference images.
How strong is prompt adherence?
Flux 2 is specifically known for strong prompt adherence — it follows detailed descriptions including spatial relationships, colors, and object counts more faithfully than most models.
Does Flux 2 support remix-image?
Yes — both Pro and Flex have dedicated remix-image variants that use source images as style or content seeds.
What is automatic prompt enhancement?
The Pro variant automatically refines your prompt for better visual results. This is a zero-config feature — no extra parameters needed.
How does Flux 2 compare to Flux Kontext?
Flux 2 is for generating new images from prompts or remixing source images. Flux Kontext is for editing existing images with contextual awareness.
我應該先從哪個版本開始？
先選擇符合你品質標準中最便宜的版本。大多數團隊會先用快速版本，之後再升級到專業版用於正式上線。
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