FLUX.2 Dev

FLUX.2 Dev

FLUX.2 Dev is Black Forest Labs' 32B open-weight model for image generation and editing. The published model uses the FLUX.2 Dev Non-Commercial License, so review the license for your intended use.

MachGen exposes both text-to-image and image editing with up to three ordered input images, five fixed output sizes, and seed control.

Why choose FLUX.2 Dev

Key strengths

• An open-weight image model for detailed generation, reference work, and natural-language editing.
• Strong control over composition, pose, color, texture, and photorealistic detail.
• Seed control and multiple source images support repeatable visual experiments.

Good fit for

• Concept art, product visualization, editorial imagery, and style development.
• Combining or revising several visual references.
• Research and local-development workflows that benefit from an open model.

Inputs and output settings

This table reflects the model routes and controls currently exposed by MachGen.

Using FLUX.2 Dev

1. Choose a supported generation mode in Playground.
2. Add the required prompt and source or reference assets.
3. Select output settings from the controls shown for that mode.
4. Generate, then inspect the returned asset before reusing the settings through the API.

Practical guidance

• Describe the subject, action or composition, environment, and visual direction in a clear order.
• For image editing, state what should change and what should remain unchanged.

Available on MachGen

Text to image

Describe subject, composition, lighting, lens, materials, and style to generate a new still.

Image editing

Attach up to three ordered source images and describe what should change or combine.

Output size

Choose one of the five fixed size presets shown in the playground. Billing is based on output megapixels.

Reproducibility

Set a seed when you need controlled comparisons between prompt or setting changes.

Prompting notes

• Name materials, light direction, camera distance, and mood - concrete nouns beat vague adjectives.
• Describe composition explicitly: subject placement, foreground, background, and negative space.
• When typography matters, put the exact string in quotes and keep the surrounding layout simple.
• Change one prompt variable at a time and keep the seed fixed when comparing results.

How to get better FLUX.2 Dev results

• Describe composition and spatial relationships explicitly instead of listing disconnected objects.
• Give each source image a role, such as subject, pose, material, palette, or background.
• Use exact color names or values when palette control matters.
• Keep the seed fixed while refining a promising composition and review the FLUX.2 Dev license for the intended use.

Limits and availability

• MachGen admits only the modes and settings listed above for this catalog model.
• Source assets must finish uploading before a request can be submitted.
• Generated results can vary between requests, including when the same prompt and settings are reused.
• FLUX.2 Dev runs on MachGen-managed inference infrastructure rather than being forwarded to a provider API.

Learn more

For model background, technical details, and architecture, see the official FLUX.2 documentation.

Try this model in the MachGen Playground.

Official documentation may describe capabilities or parameters that are not currently exposed by MachGen. Use the Inputs and output settings section above as the source of truth for this page.

FLUX.2 Dev pricing

See Pricing for currently published MachGen rates. When available, the Playground estimate reflects the selected task and output settings.

FLUX.2 Dev on MachGen

Deployment: MachGen Hosted. FLUX.2 Dev runs on MachGen-managed inference infrastructure rather than being forwarded to a provider API.

The Playground and API sections on this page list the inputs and output settings exposed for this model.