Flux 1.1 Pro Ultra

Name: Flux 1.1 Pro Ultra
Brand: Black Forest Labs
SKU: flux-pro-ultra
Price: 0.072 USD
Availability: InStock

Generiranje slikaDostupno

od Black Forest Labsflux-pro-ultra

FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.

Isprobaj Preuzmi API ključ Usporedi

Cijena: 0,072 US$/slika
Omjeri stranica: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Ulaz → izlaz: Tekst → Slika
Razvojni inženjer: Black Forest Labs
Ažurirano: 23. septembar 2026.

Playground

Isprobaj Flux 1.1 Pro Ultra

Unos i rezultat

0,072 US$/slika

Prompt

Omjer slike(opcionalno)

Napredne postavke (2)

Format izlaza(opcionalno)

Raw

⌘/Ctrl + Enter

Rezultat

Tvoja slika se pojavljuje ovdje.

Ovaj pokus

0,072 US$ · 7,2 kredita

Za račune bez prethodne kupnje: pokusi iznad 2 kredita trebaju dopunjavanje.

Novi si ovdje?

10 besplatnih kredita (0,10 US$) kada se registriraš s Googlom

Dostupno 24 sati nakon registracije, do 5 pokusa dnevno i najviše 2 kredita po pokusu. Ostale metode prijave počinju bez kredita.

Examples

Real outputs from the public examples of this model on Replicate, with the prompt and settings that produced them. They were not generated live on this page.

Open full size
Prompt
a majestic snow-capped mountain peak bathed in a warm glow of the setting sun
Settings
aspect_ratio

3:2
Open full size
Prompt
a close up of a miniature model of a small village nestled amidst a lush, verdant landscape, featuring a winding river and a backdrop of trees and buildings.
Settings
aspect_ratio

3:2
Open full size
Prompt
the serene interior of a cave, where a pool of water is nestled amidst an abundance of greenery. Sunlight filters through the cave opening, casting a soft glow on the surrounding foliage and the tranquil water below
Settings
aspect_ratio

3:2

Primjer promptova

Primjeri iz Railwail kataloga. Nisu generirani uživo na ovoj stranici.

Photorealistic Portrait
A close-up editorial portrait of an elderly fisherman with deep weathered wrinkles, bright blue eyes, wearing a cable-knit sweater, shot on medium format film with shallow depth of field, natural window light
Architecture
A stunning modern cliffside villa with floor-to-ceiling glass walls overlooking the Mediterranean Sea, infinity pool merging with the horizon, golden hour lighting, architectural photography style
Nature Macro
An extreme macro photograph of morning dew drops on a spider web, each droplet acting as a tiny lens refracting the sunrise behind it, bokeh background of wildflowers, National Geographic quality

O Flux 1.1 Pro Ultra

UkratkoStanje: 23. septembar 2026.

Flux 1.1 Pro Ultra je model od Black Forest Labs iz kategorije Generiranje slika. Na Railwailu, Flux 1.1 Pro Ultra košta 0,072 US$ po slici. Podržani omjeri slike: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 i 9:21.

Pozadina

O Black Forest Labs

Osnovano 2024 · Freiburg, Germany

Black Forest Labs was founded in August 2024 by Robin Rombach, Patrick Esser, Andreas Blattmann and Dominik Lorenz, the team that created Latent Diffusion at LMU Munich and Stable Diffusion at Stability AI. Headquartered in Freiburg, Germany, the lab raised a $31M seed round led by Andreessen Horowitz and has since released the FLUX.1 family and FLUX 1.1 series. FLUX 1.1 [pro] (released October 2024) and the higher-resolution FLUX 1.1 [pro] Ultra (released November 2024) are the flagship commercial tiers, available only through the Black Forest Labs API and partner platforms such as Replicate, fal.ai and Together AI.

Posjetite Black Forest Labs

Arhitektura

Rectified-flow Diffusion Transformer (DiT) with native 4 MP rendering

FLUX 1.1 [pro] Ultra is Black Forest Labs' highest-quality commercial image model, released as an API-only tier in November 2024. It builds on the FLUX 1.1 [pro] backbone — a rectified-flow Diffusion Transformer trained with the flow-matching objective from the SD3 paper (Esser et al. 2024) — but is fine-tuned and architecturally extended to produce up to 4 megapixels (2048x2048 or 1568x2520) natively without tiling or super-resolution. Black Forest Labs reports that Ultra achieves these resolutions with the same speed as standard FLUX 1.1 [pro] thanks to architectural and inference optimisations including grouped attention, FP8 inference and improved noise schedules. A complementary 'Raw' mode is exposed that produces less stylised, more photographic outputs. The model uses T5-XXL plus CLIP-L text encoders, the standard 16x latent VAE and 28-50 flow-matching sampling steps.

Parametri: Undisclosed (substantially larger than 12B FLUX.1 backbone)
Kontekst: 512 tokena

Mogućnosti

Native 4 MP rendering (up to 2048x2048 or 1568x2520)
State-of-the-art photorealism in the FLUX family
'Raw' mode for unstylised photographic look
Strong typography for an image model
Excellent prompt adherence via T5-XXL
Fast inference (~10-20s per 4MP image)
Available via Black Forest Labs API, Replicate, fal.ai, Together AI
Best for: print-quality marketing, large-format ads, editorial photography, premium creative.

Obuka i licenca

Pretrained on a large licensed image-text corpus; fine-tuned at high resolutions for the Ultra tier. Exact data is not disclosed.

Licenca: Proprietary commercial license via Black Forest Labs API and approved partners. Pay-per-image pricing.

Testiranje sigurnosti: API-level safety filters covering CSAM, NCII, IP-protected characters and named living persons. Outputs may carry watermark metadata.

Poznata ograničenja

API only, no open weights
Higher per-image cost than dev/schnell tiers
Generation latency higher than 1 MP modes
No fine-tuning for external customers

Znanstveni članci

Cijene

Cijene u USD-u. Korištenje se naplaćuje iz unaprijed plaćenih kredita.

Po slici	0,072 US$ po slici

1 kredit = 0,01 US$

Kalkulator troškova

Kalkulator cijena

Pokretanja

Ukupno

7,20 US$

720 kredita

Po pokretanju

0,072 US$ · 7,2 kredita

Fiksna cijena po pokretanju, poznata prije početka.

API

Pozovi Flux 1.1 Pro Ultra sa svojim Railwail API ključem. Koristi ovaj ID modela u zahtjevu:

flux-pro-ultraPogledaj API dokumentaciju Dobij API ključ

curl https://railwail.com/api/v1/images/generations \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "flux-pro-ultra",
    "prompt": "A lighthouse on a rocky coast at sunset, photorealistic"
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["RAILWAIL_API_KEY"],
    base_url="https://railwail.com/api/v1",
)

image = client.images.generate(
    model="flux-pro-ultra",
    prompt="A lighthouse on a rocky coast at sunset, photorealistic",
)

print(image.data[0].url)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.RAILWAIL_API_KEY,
  baseURL: "https://railwail.com/api/v1",
});

const image = await client.images.generate({
  model: "flux-pro-ultra",
  prompt: "A lighthouse on a rocky coast at sunset, photorealistic"
});

console.log(image.data[0].url);

// npm install railwail
import railwail from "railwail";

const rw = railwail(process.env.RAILWAIL_API_KEY);

const res = await rw.image("flux-pro-ultra", "A lighthouse on a rocky coast at sunset, photorealistic");

console.log(res.data[0].url);

Postavite ključ kao RAILWAIL_API_KEYKreiraj API ključ

Specifikacije

ID modela: flux-pro-ultra
Razvojni inženjer: Black Forest Labs
Kategorija: Generiranje slika
Ulaz: Tekst
Izlaz: Slika
Formati izlaza: JPG, PNG
Omjeri stranica: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Naplata: Fiksna cijena, poznata prije pokretanja
Veličina modela: Undisclosed (substantially larger than 12B FLUX.1 backbone)
Licenca: Proprietary commercial license via Black Forest Labs API and approved partners. Pay-per-image pricing.
Katalog ažuriran: 23. septembar 2026.

Parametri ulaza

Ulazi i postavke iz sheme ulaza modela. Primjer u odjeljku API pokazuje koje od njih API prihvaća.

ParametarTipZadanoDozvoljene vrijednosti

promptobavezno
Tip: Tekst
Zadano: –
Dozvoljene vrijednosti: –
raw
Tip: Da/Ne
Zadano: false
Dozvoljene vrijednosti: –
aspect_ratio
Tip: Izbor
Zadano: 3:2
Dozvoljene vrijednosti: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 ili 9:21
output_format
Tip: Izbor
Zadano: jpg
Dozvoljene vrijednosti: jpg ili png

Oznake

high-quality
photorealistic

Primjena

Za što se koristi

Print-quality advertising creatives
Editorial and magazine illustration
Premium brand campaigns
Large-format poster and billboard imagery
Hero shots for e-commerce
Stock-photo-grade content

Svi modeli: Generiranje slika

Često postavljana pitanja

Što je Flux 1.1 Pro Ultra?

Flux 1.1 Pro Ultra je model od Black Forest Labs iz kategorije Generiranje slika. Na Railwailu ga možete pozvati s API ključem kroz Railwail API.

Koliko stoji Flux 1.1 Pro Ultra na Railwailu?

Na Railwailu, Flux 1.1 Pro Ultra košta 0,072 US$ po slici. Cijena je poznata prije nego što se pokretanje počne. Korištenje se plaća iz unaprijed kupljenih kredita; 1 kredit jednaka je 0,01 US$.

Koje postavke podržava Flux 1.1 Pro Ultra?

Prema svojoj shemi unosa, Flux 1.1 Pro Ultra poznaje ove parametre: prompt, raw, aspect_ratio (1:1, 16:9, 9:16, 3:2, 2:3, 21:9 ili 9:21) i output_format (jpg ili png).

Koliko je brz Flux 1.1 Pro Ultra?

Za Flux 1.1 Pro Ultra na Railwailu još nema dovoljno izmjerenih pokretanja da bi se navedlo vrijeme izvršavanja. Ovisi o unošenju, postavkama i opterećenju kod pružatelja.

Je li Flux 1.1 Pro Ultra bolji od FLUX 1.1 Pro?

To ovisi o zadatku. Flux 1.1 Pro Ultra (Black Forest Labs) i FLUX 1.1 Pro (Black Forest Labs) su oba modela iz kategorije Generiranje slika. Stranica za usporedbu prikazuje njihove cijene i specifikacije usporedno.

Usporedi Flux 1.1 Pro Ultra i FLUX 1.1 Pro

Kako koristim Flux 1.1 Pro Ultra kroz API?

Kreiraj Railwail API ključ i pošalji svoj zahtjev s ID-om modela flux-pro-ultra. Primjeri koda za curl, Python i JavaScript nalaze se u odjeljku API na ovoj stranici.

Usporedivi modeli

Svi u ovoj kategoriji

FLUX 1.1 ProBlack Forest Labs
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
0,048 US$/slika
33 % jeftinije po jedinici
Usporedi Flux 1.1 Pro Ultra i FLUX 1.1 Pro
Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
0,0384 US$/slika
47 % jeftinije po jedinici
Usporedi Flux 1.1 Pro Ultra i Flux Dev
Google Imagen 4Google DeepMind
Google DeepMind's Imagen 4 text-to-image model, hosted on Replicate. Sharp detail, accurate text rendering, and strong prompt adherence across photographic and illustrated styles. Outputs up to 2K resolution.
0,048 US$/slika
33 % jeftinije po jedinici
Usporedi Flux 1.1 Pro Ultra i Google Imagen 4

Koristi Flux 1.1 Pro Ultra preko API-ja

Jedan API ključ za sve modele na Railwailu. Korištenje se naplaćuje iz unaprijed plaćenih kredita, 1 kredit = 0,01 US$.

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