Flux Pro API
What is Flux Pro
For a product or marketing image where quality matters more than generation speed, Flux Pro is Black Forest Labs' high-quality image model, described in varg's catalog as 'Flux Pro 1.1. High-quality image generation.' It's routed via fal.ai.
Flux Pro via varg vs. calling fal.ai directly
Direct fal.ai access needs its own account and billing, separate from any video or speech generation you're also doing. Through varg, Flux Pro shares the same gateway, credit balance, and 30-day generation cache as every video and speech model in the catalog — useful when a single pipeline needs a generated image and a video built from it.
Pricing
Estimated cost via varg: $0.68 per megapixel — billed by output resolution, not a flat per-image rate, so a larger output image costs more.
Code example
curl https://api.varg.ai/v2/tools/image \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "fal:flux_pro",
"prompt": "minimalist product photo of a ceramic mug on a white background, studio lighting"
}'
See docs.varg.ai for the confirmed request/response shape.
When to use Flux Pro vs. other image models
Use Flux Pro for general high-quality image generation. If you specifically need character consistency and scene composition control, varg's SDK feature list points to Flux Pro Kontext as the reference-based editing variant — check that route separately rather than assuming base Flux Pro does reference editing. For a faster, cheaper option when quality can flex, Flux Schnell is the same family's fastest, cheapest variant (~$0.11 estimated). For Google's alternative, see Nano Banana Pro.
Flux Pro API via varg vs. direct
| Direct | Via varg | |
|---|---|---|
| Separate provider account needed | Yes (fal.ai account) | No — one VARG_API_KEY |
| Combine with video/speech in one pipeline | Manual glue code | Built-in (same gateway, same credit balance) |
| Automatic caching of repeated generations | No | Yes — content-addressed, 30-day TTL |
| Billing | fal.ai's own billing | Credit-based, 1 credit = 1 cent |
FAQ
How much does Flux Pro cost via varg?
An estimated $0.68 per megapixel of output — cost scales with image resolution, not a flat per-image charge.
Is there a faster or cheaper Flux option?
Yes — Flux Schnell is the fastest, cheapest variant in the Flux family (~$0.11 estimated per megapixel).
Can I use Flux Pro for reference-based image editing?
Check the separate Flux Pro Kontext route for reference-based editing and character consistency — this page covers base Flux Pro generation.
Do I need a Black Forest Labs or fal.ai account?
No — varg routes the request behind one API key.