Flux Dev

Name: Flux Dev
Brand: Black Forest Labs
SKU: flux-dev
Price: 0.0384 USD
Availability: InStock

Generiranje slikaDostupno

od Black Forest Labsflux-dev

Black Forest Labs' development model. Fast, high-quality image generation with LoRA support.

Isprobaj Preuzmi API ključ Usporedi

Cijena: 0,0384 US$/slika
Omjeri stranica: 1:1, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4
Ulaz → izlaz: Tekst → Slika
Razvojni inženjer: Black Forest Labs
Ažurirano: 23. septembar 2026.

Playground

Isprobaj Flux Dev

Unos i rezultat

0,0384 US$/slika

Prompt

Omjer slike(opcionalno)

Napredne postavke (1)

Format izlaza(opcionalno)

⌘/Ctrl + Enter

Rezultat

Tvoja slika se pojavljuje ovdje.

Ovaj pokus

0,0384 US$ · 3,84 kredita

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

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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
style of 80s cyberpunk, a portrait photo
Settings
aspect_ratio

1:1
Open full size
Prompt
pnt style Illustration of a latina woman
Settings
aspect_ratio

1:1
Open full size
Prompt
A tabby cat lounging on a sun-dappled windowsill, half its body in shadow, half in bright light, flmft style
Settings
aspect_ratio

1:1

Primjer promptova

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

Landscape
A serene mountain lake at golden hour, with snow-capped peaks reflected perfectly in the still water, pine forests lining the shore, warm amber light casting long shadows across the meadow
Character Design
A cyberpunk street samurai with neon-blue cybernetic arm, wearing a weathered leather jacket, standing in a rain-soaked Tokyo alley with holographic signs reflecting in puddles
Still Life
An elegant flat lay arrangement of artisan coffee beans, a brass hand grinder, a ceramic pour-over dripper, and fresh croissants on a dark walnut table, morning light streaming from the left

O Flux Dev

UkratkoStanje: 23. septembar 2026.

Flux Dev je model od Black Forest Labs iz kategorije Generiranje slika. Na Railwailu, Flux Dev košta 0,0384 US$ po slici. Podržani omjeri slike: 1:1, 16:9, 9:16, 3:2, 2:3, 4:5 i 5:4.

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 original Latent Diffusion and Stable Diffusion team from LMU Munich and Stability AI. Headquartered in Freiburg, Germany, the lab raised a $31M seed round led by Andreessen Horowitz and launched the FLUX.1 family in August 2024 with three tiers: FLUX.1 [pro] (closed, API-only, highest quality), FLUX.1 [dev] (open weights, non-commercial, near-pro quality) and FLUX.1 [schnell] (open weights Apache 2.0, distilled few-step).

Posjetite Black Forest Labs

Arhitektura

Rectified-flow Diffusion Transformer (DiT)

FLUX.1 [dev] is the open-weights research variant of the FLUX.1 family, providing near-FLUX.1 [pro] quality with publicly downloadable weights. The architecture is a rectified-flow Diffusion Transformer (DiT) with approximately 12B parameters, trained with the flow-matching objective from the SD3 paper (Esser et al. 2024). It uses T5-XXL plus CLIP-L as parallel text encoders, allowing both long descriptive prompts and short keyword-style prompts. Image tokens come from a learned 16x latent VAE. Sampling typically uses 28-50 flow-matching steps with the Euler sampler at guidance ~3.5. FLUX.1 [dev] is guidance-distilled from a teacher and uses 'guidance' as a conditioning input rather than classifier-free guidance at inference, simplifying multi-step deployment. The model produces images up to 2 MP with strong prompt adherence, photorealistic detail and notably good in-image text rendering.

Parametri: ~12B parameters
Kontekst: 512 tokena

Mogućnosti

Near-state-of-the-art photorealism for an open model
Up to 2 MP output resolution (1MP standard)
Strong prompt adherence via T5-XXL
Good in-image text rendering (short strings)
Open weights — self-hostable, fine-tunable
ControlNet, LoRA and IP-Adapter ecosystem
Compatible with FLUX Tools (Fill, Canny, Depth, Redux)
Best for: self-hosted creative pipelines, custom fine-tunes, research, ControlNet workflows.

Obuka i licenca

Pretrained on a large licensed and publicly available image-text dataset; then distilled from a teacher to produce the [dev] guidance-distilled checkpoint. Exact composition and token counts are not disclosed.

Licenca: FLUX.1 [dev] Non-Commercial License — free for research and personal use; commercial use requires a separate agreement with Black Forest Labs.

Testiranje sigurnosti: Baseline safety filters at the API tier; the open weights ship without an integrated safety classifier and operators are expected to add their own moderation.

Poznata ograničenja

Non-commercial license restricts production use
Lower quality than FLUX.1 [pro] on fine details
Slow on consumer GPUs without quantisation
Hands and complex small text still imperfect

Znanstveni članci

Cijene

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

Po slici	0,0384 US$ po slici

1 kredit = 0,01 US$

Kalkulator troškova

Kalkulator cijena

Rezultati po pokretanju

/ pokretanje

Pokretanja

Ukupno

3,84 US$

384 kredita

Po pokretanju

0,0384 US$ · 3,84 kredita

Fiksna cijena po pokretanju, poznata prije početka.

API

Pozovi Flux Dev sa svojim Railwail API ključem. Koristi ovaj ID modela u zahtjevu:

flux-devPogledaj 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-dev",
    "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-dev",
    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-dev",
  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-dev", "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-dev
Razvojni inženjer: Black Forest Labs
Kategorija: Generiranje slika
Ulaz: Tekst
Izlaz: Slika
Formati izlaza: WEBP, JPG, PNG
Omjeri stranica: 1:1, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4
Naplata: Fiksna cijena, poznata prije pokretanja
Veličina modela: ~12B parameters
Licenca: FLUX.1 [dev] Non-Commercial License — free for research and personal use; commercial use requires a separate agreement with Black Forest Labs.
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: –
aspect_ratio
Tip: Izbor
Zadano: 1:1
Dozvoljene vrijednosti: 1:1, 16:9, 9:16, 3:2, 2:3, 4:5 ili 5:4
output_format
Tip: Izbor
Zadano: webp
Dozvoljene vrijednosti: webp, jpg ili png

Oznake

popular
fast
lora

Primjena

Za što se koristi

Self-hosted creative pipelines
Custom LoRA fine-tunes and brand models
Research and academic experiments
ControlNet and IP-Adapter workflows
Concept art and illustration
Open-source consumer apps (non-commercial)

Svi modeli: Generiranje slika

Često postavljana pitanja

Što je Flux Dev?

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

Koliko stoji Flux Dev na Railwailu?

Na Railwailu, Flux Dev košta 0,0384 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 Dev?

Prema svojoj shemi unosa, Flux Dev poznaje ove parametre: prompt, aspect_ratio (1:1, 16:9, 9:16, 3:2, 2:3, 4:5 ili 5:4) i output_format (webp, jpg ili png).

Koliko je brz Flux Dev?

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

Je li Flux Dev bolji od FLUX 1.1 Pro?

To ovisi o zadatku. Flux Dev (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 Dev i FLUX 1.1 Pro

Kako koristim Flux Dev kroz API?

Kreiraj Railwail API ključ i pošalji svoj zahtjev s ID-om modela flux-dev. 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$/slika
25 % skupnije po jedinici
Usporedi Flux Dev i FLUX 1.1 Pro
Flux 1.1 Pro UltraBlack Forest Labs
FLUX 1.1 Pro in ultra mode. Up to 4 megapixel images with raw mode for photorealism.
0,072 US$/slika
88 % skupnije po jedinici
Usporedi Flux Dev i Flux 1.1 Pro Ultra
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
25 % skupnije po jedinici
Usporedi Flux Dev i Google Imagen 4

Koristi Flux Dev 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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