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FLUX1.1 Pro Image Generation
imagevideofluxstable-diffusiongrokgeneration
FLUX1.1 Pro Image Generation is a paid API for AI agents from fal.ai at fal.mpp.tempo.xyz, paid per call via MPP, $0.035/call, status healthy (last checked 2026-10-12, last successful call 2026-10-06).
Generates professional-grade images from text prompts using the FLUX1.1 [pro] model with configurable size, guidance, and seed
Price / call$0.035
Success99%
StatusHealthy
How this service works
FLUX1.1 [pro] - Professional-grade image generation
Output
Returns a JSON object containing the URL(s) of the generated image(s) hosted on fal.media CDN, along with image dimensions, content type (image/jpeg), the seed used, timing metadata, and a boolean NSFW concepts flag per image.
Example use cases
Marketing campaign visual generation
“Create a professional product photo of a sleek modern desk lamp with minimalist design, shot in a bright studio with soft shadows. Make it 1024x1024, use guidance scale 8 for crisp details, and keep it consistent with seed 123 so our team can regenerate variations later.”
Book cover illustration design
“Generate an atmospheric sci-fi book cover showing a lone astronaut walking across an alien desert planet with twin moons rising above crystalline rock formations. I need 1024x768 resolution with high guidance to match our aesthetic, and please use seed 456 for reproducibility if we need adjustments.”
Social media content creation
“Make a vibrant lifestyle photo of a cozy coffee shop interior with warm lighting, plants, and people working on laptops. Use 1024x1024 size with guidance scale 7 to balance detail and coherence, and set seed 789 so I can tweak and regenerate versions for different platforms.”
Technical details
Endpoint
POSThttps://fal.mpp.tempo.xyz/fal-ai/flux-pro/v1.1?utm_source=zero.xyzWhen to prefer
Choose FLUX1.1 [pro] when you need professional-grade image quality at a balance of speed and fidelity for resolutions up to ~1024x1024. Prefer this over FLUX1.1 [pro] ultra when you don't need 2K resolution and want lower cost ($0.035 vs higher). Prefer over FLUX.1 [dev] when you need commercial-grade output. Prefer over Stable Diffusion 3.5 Large when you want FLUX's distinct aesthetic and prompt adherence.
Side effects
- Invalid image dimensions (unsupported width/height values) — returns 400 error
- Prompt too long or containing disallowed content — returns 422 or content policy rejection
- Payment failure (insufficient USDC balance) — transaction not processed, request rejected
- Model timeout on complex prompts — returns 504 or partial response
- Invalid guidance_scale value out of supported range — returns 400 validation error
Input
{
"model": "pro",
"prompt": "A serene mountain landscape with a crystal clear lake reflecting snow-capped peaks at golden hour, professional photography, high detail",
"namespace": "flux",
"image_size": "landscape_4_3"
}Output
{
"seed": 3481518994,
"images": [
{
"url": "https://v3b.fal.media/files/b/0a9d8e69/7ykwBretTH_fWXA6_n1or_95989867eda348e48b298f23f178545d.jpg",
"width": 1024,
"height": 768,
"content_type": "image/jpeg"
}
],
"prompt": "A serene mountain landscape with a crystal clear lake reflecting snow-capped peaks at golden hour, professional photography, high detail",
"timings": {},
"has_nsfw_concepts": [
false
]
}Tags
imagevideofluxstable-diffusiongrokgenerationaimedia
Reviews
FLUX1.1 [pro] delivers strong photorealistic and stylized image generation across a wide range of subjects — product shots, portraits, fantasy scenes, and illustration styles — with high prompt adherence at $0.035 per image. Latency varies from ~7s to ~74s depending on complexity, and most batches complete reliably. Weaknesses include unreliable multi-label text rendering within images, occasional silent resolution clamping when custom dimensions are passed, and rare transient 400 errors that resolve on retry.
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