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

Generovanie obrázkovDostupné

od Black Forest Labsflux-pro-ultra

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

Vyskúšať Získať API kľúč Porovnať

Cena: 0,072 USD/obrázok
Pomery strán: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Vstup → výstup: Text → Obrázok
Vývojár: Black Forest Labs
Aktualizované: 23. septembra 2026

Playground

Vyskúšajte Flux 1.1 Pro Ultra

Vstup a výstup

0,072 USD/obrázok

Prompt

Pomer strán(voliteľné)

Pokročilé nastavenia (2)

Formát výstupu(voliteľné)

Raw

⌘/Ctrl + Enter

Výsledok

Tvoj obrázok sa objaví tu.

Tento beh

0,072 USD · 7,2 credits

Pre účty bez nákupu: behy nad 2 credits vyžadujú dobíjanie.

Nový tu?

10 bezplatných credits (0,10 USD) pri registrácii cez Google

Použiteľné 24 hodín po registrácii, až 5 behov za deň a maximálne 2 credits za beh. Ostatné spôsoby prihlásenia sa spúšťajú bez credits.

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

Príklady promptov

Príklady z katalógu Railwail. Neboli vygenerované živě na tejto stránke.

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

StručneK 23. septembra 2026

Flux 1.1 Pro Ultra je model od Black Forest Labs v kategórii Generovanie obrázkov. Na Railwail stojí Flux 1.1 Pro Ultra 0,072 USD za obrázok. Podporované pomery strán: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 a 9:21.

Pozadie

O Black Forest Labs

Založené 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.

Navštíviť Black Forest Labs

Architektúra

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.

Parametre: Undisclosed (substantially larger than 12B FLUX.1 backbone)
Kontext: 512 tokenov

Schopnosti

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.

Tréning a licencia

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

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

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

Známe obmedzenia

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

Výskumné články

Ceny

Ceny v USD. Použitie sa účtuje z predplateného kreditu.

Za obrázok	0,072 USD za obrázok

1 kredit = 0,01 USD

Kalkulačka nákladov

Kalkulačka cien

Spustenia

Celkom

7,20 USD

720 kreditov

Na spustenie

0,072 USD · 7,2 kreditov

Pevná cena za spustenie, známa pred spustením.

API

Zavolajte Flux 1.1 Pro Ultra s vaším API kľúčom Railwail. V požiadavke použite toto ID modelu:

flux-pro-ultraDokumentácia API Získať API kľúč

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);

Nastavte svoj kľúč ako RAILWAIL_API_KEYVytvoriť API kľúč

Špecifikácie

ID modelu: flux-pro-ultra
Vývojár: Black Forest Labs
Kategória: Generovanie obrázkov
Vstup: Text
Výstup: Obrázok
Formáty výstupu: JPG, PNG
Pomery strán: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9, 9:21
Fakturácia: Pevná cena, známa pred spustením
Veľkosť modelu: Undisclosed (substantially larger than 12B FLUX.1 backbone)
Licencia: Proprietary commercial license via Black Forest Labs API and approved partners. Pay-per-image pricing.
Katalógová položka aktualizovaná: 23. septembra 2026

Vstupné parametre

Vstupy a nastavenia zo vstupnej schémy modelu. Príklad v sekcii API ukazuje, ktoré z nich API akceptuje.

ParameterTypPredvolenéPovolené hodnoty

promptpovinné
Typ: Text
Predvolené: –
Povolené hodnoty: –
raw
Typ: Áno/Nie
Predvolené: false
Povolené hodnoty: –
aspect_ratio
Typ: Výber
Predvolené: 3:2
Povolené hodnoty: 1:1, 16:9, 9:16, 3:2, 2:3, 21:9 alebo 9:21
output_format
Typ: Výber
Predvolené: jpg
Povolené hodnoty: jpg alebo png

Značky

high-quality
photorealistic

Prípady použitia

Na čo sa používa

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

Všetky modely v Generovanie obrázkov

Často kladené otázky

Čo je Flux 1.1 Pro Ultra?

Flux 1.1 Pro Ultra je model od Black Forest Labs v kategórii Generovanie obrázkov. Na Railwail ho môžete volať pomocou API kľúča cez Railwail API.

Koľko stojí Flux 1.1 Pro Ultra na Railwail?

Na Railwail stojí Flux 1.1 Pro Ultra 0,072 USD za obrázok. Cena je známa pred spustením. Použitie sa platí z predplateného kreditu; 1 kredit sa rovná 0,01 USD.

Ktoré nastavenia podporuje Flux 1.1 Pro Ultra?

Podľa svojej vstupnej schémy Flux 1.1 Pro Ultra pozná tieto parametre: prompt, raw, aspect_ratio (1:1, 16:9, 9:16, 3:2, 2:3, 21:9 alebo 9:21) a output_format (jpg alebo png).

Ako rýchly je Flux 1.1 Pro Ultra?

Pre Flux 1.1 Pro Ultra je na Railwail zatiaľ príliš málo meraných spustení na určenie doby spustenia. Závisí to od vstupu, nastavení a zaťaženia u poskytovateľa.

Je Flux 1.1 Pro Ultra lepší ako FLUX 1.1 Pro?

Závisí to od úlohy. Flux 1.1 Pro Ultra (Black Forest Labs) a FLUX 1.1 Pro (Black Forest Labs) sú oba modely v kategórii Generovanie obrázkov. Stránka porovnania zobrazuje ich ceny a špecifikácie vedľa seba.

Porovnať Flux 1.1 Pro Ultra a FLUX 1.1 Pro

Ako používam Flux 1.1 Pro Ultra cez API?

Vytvorte Railwail API kľúč a pošlite svoju požiadavku s ID modelu flux-pro-ultra. Príklady kódu pre curl, Python a JavaScript sú v časti API na tejto stránke.

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Použiť Flux 1.1 Pro Ultra cez API

Jeden API kľúč pre všetky modely na Railwail. Použitie sa účtuje z predplateného kreditu, 1 kredit = 0,01 USD.

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