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Use Flux 2 in WorkBuddy.
Flux 2 by Black Forest Labs comes in several quality versions, from faster generation to higher-fidelity output. Every version supports text-to-image and multi-source remix, and the Flux 2 model catalog lists each version with its resolutions and current pricing. WorkBuddy calls them as tools on the RunAPI MCP server, right from the workbench.
Use the runapi MCP server to generate an image with Flux 2 Pro.
Requirements:
- Call the RunAPI text_to_image tool with model "flux-2-pro-text-to-image"
- Prompt: a ceramic vase with dried flowers on a linen tablecloth, natural window light, 35mm film grain
- Set aspect_ratio to "3:4" and output_resolution to "2k"
- Wait for the task to complete and show me the image URL
{
"mcpServers": {
"runapi": {
"url": "https://runapi.ai/mcp",
"transport": "streamable_http",
"headers": {
"Authorization": "Bearer ${RUNAPI_API_KEY}"
}
}
}
}
{
"task_id": "tsk_abc123",
"status": "completed",
"model": "flux-2-pro-text-to-image",
"output": {
"image_url": "https://media.runapi.ai/outputs/tsk_abc123.png"
}
}
Use Flux 2 in WorkBuddy in three steps
Add the RunAPI MCP server
Register an MCP server named runapi in WorkBuddy, pointing at https://runapi.ai/mcp over streamable HTTP, with the Authorization header reading your key from RUNAPI_API_KEY. If RunAPI is already connected for chat, Flux 2 is exposed on the same server — no extra setup needed.
url: https://runapi.ai/mcp
auth: Bearer ${RUNAPI_API_KEY}
Prompt the workbench agent
Ask WorkBuddy to call the RunAPI text_to_image tool with model set to flux-2-pro-text-to-image. Include a prompt, and optionally aspect_ratio (1:1, 4:3, 16:9, etc.) and output_resolution (1k or 2k; Flux 2 Max supports 1k only). For multi-source remixing, tell the agent to use the remix_image tool with source_image_urls instead.
tool: text_to_image · model: flux-2-pro-text-to-image
Get the result
The MCP server creates the task, tracks it until completion, and hands the finished image URL back to WorkBuddy. The agent shows the URL in the conversation — no manual polling on your side.
task_id: tsk_abc123 → completed
Flux 2 tool parameters
| Parameter | Type | Description |
|---|---|---|
model |
string |
Required. A Flux 2 model ID for the tool, such as flux-2-pro-text-to-image or flux-2-pro-remix-image. The Flux 2 model catalog lists every available version. |
prompt |
string |
Text description of the image to generate. |
aspect_ratio |
string |
Optional. Output aspect ratio: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, or 2:3. Remix tools also accept auto. |
output_resolution |
string |
Optional. Defaults to 1k. Supported values vary by version; check the Flux 2 model catalog. For Flex and Pro, 2k costs more per image than 1k. |
source_image_urls |
array |
Required for remix_image. Array of source image URLs to blend or transform. |
callback_url |
string |
Optional. Webhook URL for async completion notification. |
What is Flux 2 on WorkBuddy?
Flux 2 by Black Forest Labs is the production-grade image model that users say "beats Midjourney on photorealism" with material fidelity that actually passes for real photography. It ships with multi-reference conditioning and 4-megapixel output, so you get brand-consistent results without fine-tuning. WorkBuddy reaches it as a tool on the RunAPI MCP server, so a text brief typed into the workbench comes back as a finished image URL.
Flux 2 use cases
E-commerce product photography
Generate product photos and background swaps that look like real studio shots, replacing manual photography for catalog pages and listings — all requested from a WorkBuddy prompt.
Ad localization across markets
Produce localized ad visuals for 30+ markets from the same prompt structure, swapping text and cultural references while keeping brand consistency.
Magazine covers and editorial images
Create magazine-quality covers with on-image text rendering, where the typography needs to be part of the generated image rather than composited afterward.
Flux 2 + WorkBuddy questions
The versions differ in generation speed, output fidelity, and price. Each one exposes text_to_image and remix_image tools on the same RunAPI MCP server. The version table in the Flux 2 model catalog lists every version with its supported parameters and current price.
No. The runapi MCP server you added for chat already exposes Flux 2 and every other RunAPI model as callable tools. The same RUNAPI_API_KEY covers LLM, image, video, and music requests.
It depends on the version. Flux 2 Flex and Flux 2 Pro bill per image and cost more at 2k than at 1k. Flux 2 Max outputs 1k only, at a single per-image rate. Check the Flux 2 model catalog or the RunAPI pricing page for current rates.
Flux Kontext specializes in text-guided editing and character consistency with a single input image. Flux 2 focuses on text-to-image generation and multi-source remixing, with several quality versions and selectable output resolution. Both are by Black Forest Labs and available as tools on the same RunAPI MCP server.
The RunAPI MCP server does. Flux 2 tasks are async, but the server tracks each task until it completes and returns the finished image URL to WorkBuddy, so you never poll manually from the workbench.
WorkBuddy general setup
Not connected yet? Start with the RunAPI MCP setup guide for WorkBuddy.
WorkBuddy setup guide →Try Flux 2 in WorkBuddy today.
Get a free RunAPI key, add the MCP server to WorkBuddy, and start generating images with Flux 2.