What is FLUX.1 Dev API?
Development-oriented FLUX.1 image generation model.
Technical Specifications
- Supported inputs: Image, Text
- Output: Image
- Endpoint: /images/generations
Performance Benchmarks
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FLUX.1 Dev API Pricing
- Pricing on request
Where to Use FLUX.1 Dev
High-volume image generation
Produce product visuals, thumbnails, and marketing assets programmatically at scale.
Creative and concept art
Turn text prompts into illustrations, mockups, and design explorations.
Image editing and variations
Provide a reference image to guide edits, restyles, or variations.
Code Sample
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Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.
FLUX.1 Dev is documented as suited to generating high-quality images from text prompts, including simple text-to-image creation.
It is also documented for marketing and content production, such as creating social media visuals, blog illustrations, campaign assets, and other consistent brand imagery.
Another documented use case is product development and design, including UI mockups, concept variations, visual prototypes, and rapid iteration.
It is additionally described for creators and professionals who need high-quality image generation from text prompts to support visual communication.
import requests r = requests.post( "https://api.aimlapi.com/v1/images/generations", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "blackforestlabs/flux-dev", "prompt": "A cat holding a sign that says hello" }, ) print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/images/generations", { method: "POST", headers: { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ "model": "blackforestlabs/flux-dev", "prompt": "A cat holding a sign that says hello" }), }); console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/images/generations \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"blackforestlabs/flux-dev","prompt":"A cat holding a sign that says hello"}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Output | |
| Benchmark | Score | What it measures | Source | Retrieved |
|---|---|---|---|---|
| Text-to-Image Arena | 841 | Human preference Elo from blind pairwise comparisons of generated images, measured independently by Artificial Analysis | Source | September 28, 2026 |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
FLUX.1 Dev This page | Image generation at scale | |||
| Image generation at scale | ||||
| Image generation at scale | ||||
| Image generation at scale | ||||
| Image generation at scale |
FLUX.1 Dev takes image, text as input and returns image.
FLUX.1 Dev became available on June 12, 2026.
FLUX.1 Dev is priced at $0.0325 / gen (variable).
FLUX.1 Dev is billed per generation — a fixed charge per output rather than by prompt length.
Yes, FLUX.1 Dev accepts image input as well as a text prompt.
FLUX.1 Dev was built by Black Forest Labs.
Send a request to https://api.aimlapi.com/v1/images/generations with blackforestlabs/flux-dev as the model id.
Yes. FLUX.1 Dev is served through AI/ML API, so the same key and endpoint format used for other models applies.
It is a development-oriented image generation model from the FLUX.1 family, built for generating images from text prompts.
