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 slikRazpoložljivo

od Black Forest Labsflux-pro-ultra

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

Preizkusi Pridobi API ključ Primerjaj

Cena: 0,072 $/slika
Razmerja stranic: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Vhod → Izhod: Besedilo → Slika
Razvijalec: Black Forest Labs
Posodobljeno: 23. september 2026

Igrišče

Preizkusi Flux 1.1 Pro Ultra

Vnos in rezultat

0,072 $/slika

Poziv

Razmerje stranic(izbirno)

Napredne nastavitve (2)

Oblika rezultata(izbirno)

Raw

⌘/Ctrl + Enter

Rezultat

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Ta zagon

0,072 $ · 7,2 kreditov

Za račune brez nakupa: zagoni nad 2 kreditov potrebujejo polnjenje.

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10 brezplačnih kreditov (0,10 $) ob prijavi z Googlom

Uporabno 24 ur po prijavi, do 5 zaganom na dan in največ 2 kreditov na zagon. Druge metode prijave se začnejo brez kreditov.

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

Primeri pozivov

Primeri iz kataloga Railwail. Niso bili generirani v živo na tej strani.

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

PovzetekOd 23. september 2026

Flux 1.1 Pro Ultra je model razvijalca Black Forest Labs iz kategorije Generiranje slik. Na Railwail stane Flux 1.1 Pro Ultra 0,072 $ na sliko. Podprta razmerja stranic: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 in 9:21.

Ozadje

O Black Forest Labs

Ustanovljeno 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.

Obiščite 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 žetonov

Zmožnosti

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.

Usposabljanje in 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.

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

Znane omejitve

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

Raziskovalni članki

Cene

Cene v ameriških dolarjih. Uporaba se obračuna iz vnaprej plačanih kreditov.

Na sliko	0,072 $ na sliko

1 kredit = 0,01 $

Kalkulator stroškov

Kalkulator cen

Zagoni

Skupaj

7,20 $

720 kreditov

Na zagon

0,072 $ · 7,2 kreditov

Fiksna cena na zagon, znana pred začetkom.

API

Pokličite Flux 1.1 Pro Ultra s svojim Railwail API ključem. V zahtevku uporabite to ID modela:

flux-pro-ultraDokumentacija API Pridobite 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);

Nastavite ključ kot RAILWAIL_API_KEYUstvari API ključ

Specifikacije

ID modela: flux-pro-ultra
Razvijalec: Black Forest Labs
Kategorija: Generiranje slik
Vhod: Besedilo
Izhod: Slika
Oblike izhoda: JPG, PNG
Razmerja stranic: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Obračunavanje: Fiksna cena, znana pred zagonom
Velikost 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.
Kataložni vnos posodobljen: 23. september 2026

Vhodne parametre

Vhodi in nastavitve iz vhodne sheme modela. Primer v razdelku API prikazuje, katere od njih API sprejema.

ParameterTipPrivzetoDovoljene vrednosti

promptObvezno
Tip: Besedilo
Privzeto: –
Dovoljene vrednosti: –
raw
Tip: Da/Ne
Privzeto: false
Dovoljene vrednosti: –
aspect_ratio
Tip: Izbira
Privzeto: 3:2
Dovoljene vrednosti: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 ali 9:21
output_format
Tip: Izbira
Privzeto: jpg
Dovoljene vrednosti: jpg ali png

Oznake

high-quality
photorealistic

Primeri uporabe

Kaj se uporablja za

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

Vsi modeli v Generiranje slik

Pogosta vprašanja

Kaj je Flux 1.1 Pro Ultra?

Flux 1.1 Pro Ultra je model podjetja Black Forest Labs iz kategorije Generiranje slik. Na Railwailu ga lahko pokličete z ključem API prek Railwailovega API-ja.

Koliko stane Flux 1.1 Pro Ultra na Railwailu?

Na Railwail stane Flux 1.1 Pro Ultra 0,072 $ na sliko. Cena je znana pred začetkom izvajanja. Uporaba se plača s predplačanimi krediti; 1 kredit je enak 0,01 $.

Katere nastavitve podpira Flux 1.1 Pro Ultra?

Glede na shemo vnosa Flux 1.1 Pro Ultra pozna te parametre: prompt, raw, aspect_ratio (1:1, 16:9, 9:16, 3:2, 2:3, 21:9 ali 9:21) in output_format (jpg ali png).

Kako hiter je Flux 1.1 Pro Ultra?

Za Flux 1.1 Pro Ultra je na Railwailu še premalo izmerjenih zagonov, da bi navedli čas izvajanja. Odvisno je od vnosa, nastavitev in obremenitve pri ponudniku.

Je Flux 1.1 Pro Ultra boljši od FLUX 1.1 Pro?

To je odvisno od naloge. Flux 1.1 Pro Ultra (Black Forest Labs) in FLUX 1.1 Pro (Black Forest Labs) sta oba modela iz kategorije Generiranje slik. Stran za primerjavo prikazuje njune cene in specifikacije drug ob drugem.

Primerjaj Flux 1.1 Pro Ultra in FLUX 1.1 Pro

Kako uporabljam Flux 1.1 Pro Ultra prek API-ja?

Ustvarite ključ Railwailovega API-ja in pošljite zahtevo z ID-jem modela flux-pro-ultra. Primeri kode za curl, Python in JavaScript so v razdelku API na tej strani.

Primerljivi modeli

Vsi v tej kategoriji

FLUX 1.1 ProBlack Forest Labs
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0,048 $/slika
33 % cenejše na enoto
Primerjaj Flux 1.1 Pro Ultra in FLUX 1.1 Pro
Flux DevBlack Forest Labs
Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.
0,0384 $/slika
47 % cenejše na enoto
Primerjaj Flux 1.1 Pro Ultra in 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 $/slika
33 % cenejše na enoto
Primerjaj Flux 1.1 Pro Ultra in Google Imagen 4

Uporabite Flux 1.1 Pro Ultra prek API

En API ključ za vsak model na Railwail. Uporaba se obračuna iz vnaprej plačanih kreditov, 1 kredit = 0,01 $.

Pridobite API ključ Oglejte si vse modele