Image · Black Forest Labs

Flux 2 API

Flux 2 API 调用 Black Forest Labs 文生图和图像 remix，具备强提示词遵循能力。

运行中 · 4 variants · 起价 $0.050

runapi.ai

curl -X POST https://runapi.ai/api/v1/flux_2/remix_image \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux-2-flex-text-to-image",
  "prompt": "生成一张写实风格的宇航员抱着猫的摄影棚人像，戏剧性轮廓光，8K 细节。"
}'

import { Flux2Client } from "@runapi.ai/flux-2";

const client = new Flux2Client();
const result = await client.remixImage.run({
    model: "flux-2-flex-text-to-image",
    prompt: "生成一张写实风格的宇航员抱着猫的摄影棚人像，戏剧性轮廓光，8K 细节。",
});

<?php

require __DIR__ . "/vendor/autoload.php";

use RunApi\Flux2\Flux2Client;

$client = new Flux2Client();
$result = $client->remixImage->run([
        'model' => 'flux-2-flex-text-to-image',
        'prompt' => '生成一张写实风格的宇航员抱着猫的摄影棚人像，戏剧性轮廓光，8K 细节。',
]);

require "runapi/flux_2"

client = RunApi::Flux2::Client.new
result = client.remix_image.run(
    model: "flux-2-flex-text-to-image",
    prompt: "生成一张写实风格的宇航员抱着猫的摄影棚人像，戏剧性轮廓光，8K 细节。"
)

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 cursor

@runapi.ai/flux-2 v1

概览

Flux 2 是 Black Forest Labs 的文生图和图像 remix 模型，以强提示词还原度和高视觉保真度著称，提供分别针对速度和质量优化的 Flex 和 Pro 版本。

多变体覆盖不同速度/质量层级
Model skill 包含文档、schema 和接入说明
适合面向应用的编码工作流
失败的生成不计费

变体

对比全部 API 变体

Variant	Billing	From
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 →

技能

为应用开发安装 Flux 2 skill

把模型文档、schema、定价说明和接入步骤加载进代码工作区。

# Install the model skill for app development workflows
npx skills add runapi-ai/flux-2 -g

Installs docs, schemas, pricing context, and setup notes into your developer workspace.

Or use this setup request in your coding tool:

Install the Flux 2 skill for this app:

1. Add runapi-ai/flux-2 with the skills installer.
2. Load SKILL.md in this workspace.
3. Use its docs, schemas, pricing notes, and setup steps when adding model features.
4. Confirm the install path when done.

OpenClaw