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 / megapixel
Billing
Per megapixel
  • US residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Pricing

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

VariantPrice
Standard$0.009 / megapixel

Available routes

FLUX.1 [dev] runs on 2 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingPrice
USEnterpriseNo$0.009 / megapixel
USEnterpriseNo$0.025 / megapixel

Uptime and availability

One of FLUX.1 [dev]'s 2 routes is on the monitoring board, so the figure below is that provider's availability rather than the model's.

99.62%route uptime, last 30 days
Its other routes aren't measured here yet.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 1 further route is not on the board yet. See uptime for every provider Opper monitors.

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

fal β€” United StatesπŸ‡ΊπŸ‡Έ

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

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

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 a coding agent like Claude Code, Cursor or Codex 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);

Compare FLUX.1 [dev] with…

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

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