FLUX-1-dev

by Black Forest Labs

FLUX-1-dev is a 12 billion parameter rectified flow transformer for text-to-image generation, offering prompt adherence and visual quality close to proprietary alternatives. It was trained using guidance distillation, which makes the model more efficient at inference while preserving output quality, and it produces high-quality images at common resolutions such as 1024 by 1024. Released under a non-commercial license, FLUX-1-dev is well suited to research, personal projects, and non-monetized creative work. It provides a more accessible alternative to closed models while remaining competitive on output quality, which has made it a popular base for community experimentation and derivative fine-tuning across multiple inference platforms.

Key info

Input
Output
Features
Pricing
$0.009 / generation
Billing
Per generation
  • US residency available
  • Zero data retention via Enterprise
  • No training by default

Pricing

Usage-based pricing, billed per generation, not by token.

VariantPrice
Standard$0.009 / generation

Available routes

FLUX-1-dev runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingPrice
DeepInfraUSEnterpriseNo$0.009 / generation

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting FLUX-1-dev has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

DeepInfra β€” United StatesπŸ‡ΊπŸ‡Έ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; unknown.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Limited debug logs
Third-party access
None disclosed
GDPR DPA
No DPA
Transfer mechanism
unknown

Get started

Call FLUX-1-dev through the Opper gateway with one API key. Let your coding agent set it up, or call it directly β€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent β€” Claude Code, Cursor, Codex, and more β€” and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "deepinfra/black-forest-labs/FLUX-1-dev",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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FLUX-1-dev by Black Forest Labs β€” pricing, benchmarks | Opper AI