Black Forest Labs Flux Dev
black_forest_labs_flux_devFLUX Dev — balanced quality and speed for image generation
How it works ↓Pricing
Per call
$0.05
Model
flat
Pay only for what you use. No subscriptions.
Inputs
image
stringaspect_ratio
stringnum_outputs
integerseed
integergo_fast
booleanmegapixels
stringprompt_strength
numberoutput_quality
integerdisable_safety_checker
booleanoutput_format
stringguidance
numberprompt *
stringnum_inference_steps
integerInput Parameters
Cost per run
Execution cost$0.05
About Black Forest Labs Flux Dev
FLUX Dev — balanced quality and speed for image generation
Frequently Asked Questions
FLUX Dev — balanced quality and speed for image generation
Black Forest Labs Flux Dev costs $0.05 per call on xpay. No subscription, no minimums. Pay only for the calls you make. New accounts get $5 in free credits.
Connect the Black Forest Labs MCP endpoint to your client — Claude Code: claude mcp add --transport http black-forest-labs "https://black-forest-labs.mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY"; Cursor/Windsurf/Cline/VS Code: same URL in mcp.json. The agent will see black_forest_labs_flux_dev as a callable tool with the input schema and run it directly. (Unified across all providers: https://mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY, then xpay_run with toolPath black-forest-labs/black_forest_labs_flux_dev.)
Yes — that's exactly what xpay is for. You don't need a Black Forest Labs account or API key. Sign up at xpay.tools (Google or email), get $5 free credit, and run Black Forest Labs Flux Dev immediately. Billing flows through your xpay balance.
Black Forest Labs Flux Dev accepts 13 input parameters: image, aspect_ratio, num_outputs, seed, go_fast, megapixels…. See the input schema and runnable form on this page for details and to test live.