What Is FLUX.1 Schnell?
FLUX.1 Schnell is Black Forest Labs’ original four-step speed model. It remains useful as an inexpensive open drafting baseline for photographic compositions, bold graphics and high-volume prompt exploration.
FLUX Model Versions
FLUX.1 Schnell
1 credit · 1K
From 1 Credits
FLUX.2 Max
The highest-fidelity FLUX.2 tier for final-publish generation and demanding prompt adherence.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image, Typography
- Speed: Balanced
FLUX.2 Flex
FLUX.2 with explicit guidance and step controls for typography-heavy final renders.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Balanced
FLUX.2 Flash
A low-cost FLUX.2 route for rapid generation and exact multi-reference edits.
- Resolutions: 1K / 2K
- Reference images: up to 4
- Modes: Text to Image, Edit Image, Multi-reference
- Speed: Fastest
FLUX.2 Turbo
A fast FLUX.2 draft model with prompt expansion and unusually low megapixel cost.
- Resolutions: 1K / 2K
- Reference images: up to 4
- Modes: Text to Image, Image to Image, Edit Image, Multi-reference
- Speed: Fastest
FLUX.2 Klein 4B
Black Forest Labs’ fully open compact FLUX.2 model for high-volume and interactive generation.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Fastest
FLUX.1 Kontext Max
The premium Kontext tier for typography, prompt adherence and identity-preserving edits.
- Resolutions: 1K
- Reference images: up to 1
- Modes: Text to Image, Image to Image, Edit Image
- Speed: Balanced
FLUX.1 Kontext Pro
Fast, context-aware generation and iterative editing from a single reference.
- Resolutions: 1K
- Reference images: up to 1
- Modes: Text to Image, Image to Image, Edit Image
- Speed: Fast
FLUX1.1 Pro Ultra
The high-resolution FLUX1.1 Pro tier for natural photography, detailed materials and reference-guided renders.
- Resolutions: 2K
- Reference images: up to 1
- Modes: Text to Image, Image to Image
- Speed: Balanced
FLUX1.1 Pro
The production FLUX1.1 endpoint for detailed photographic and material-rich final renders.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Balanced
FLUX.1 Dev
The tunable FLUX.1 development checkpoint for prompt experiments, seeded studies and controllable rendering.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Slow
FLUX.1 Schnell
The original open FLUX speed tier for rapid four-step concepts and inexpensive prompt batches.
- Resolutions: 1K
- Reference images: not supported
- Modes: Text to Image, Typography
- Speed: Fastest
FLUX.2
Generate photorealistic images and edit reference photos with control over lighting, materials and composition.
- Resolutions: 1K / 2K / 4K
- Reference images: up to 4
- Modes: Text to Image, Image to Image, Edit Image
- Speed: Balanced
FLUX.2 Klein
The distilled FLUX.2: speed first, same visual language.
- Resolutions: 1K
- Reference images: up to 1
- Modes: Text to Image, Image to Image
- Speed: Fastest
What Is FLUX.1 Schnell Best For?
- Four-step drafts
- Cheap prompt sweeps
- Open-model baselines
- Fast photographic composition
How to Use FLUX.1 Schnell
- Describe a direct visual concept.
- Leave Steps at 4 for finals.
- Generate a cheap batch.
- Move a winning direction to FLUX.2 for more detail.
FLUX.1 Schnell Settings Explained
Steps
Schnell is distilled for one to four steps; four is the quality default.
Seed
Fix it to compare prompt wording without changing the composition completely.
The panel above shows only the parameters FLUX.1 Schnell actually supports. Switch versions and unsupported controls disappear rather than sitting there doing nothing.
FLUX.1 Schnell Prompt Examples
Fast photo draft
Extreme close-up of a tiger eye, sharp iris texture, natural reflections, the word “FLUX” in white paint strokes
Product concept
Orange trail shoe on dark volcanic stone, hard rim light, flying dust, energetic sports campaign
FLUX.1 Schnell Test Results
Testing in progress
Every model runs the same eight-category prompt set — portrait, product, poster text, anime character, interior, multi-reference, image editing and character consistency — recording generation time, success rate, text accuracy and identity retention. That run has not finished for FLUX.1 Schnell, so this page shows no scores. We do not publish numbers we have not measured.
FLUX.1 Schnell Limitations
- 1K output in this integration
- Lower detail than current FLUX.2 models
- Text-to-image only on this exact route
FLUX.1 Schnell Pricing and Credits
Credits scale with resolution and image count. The Generate button always shows what this run costs.
1K
1 credits / image
Failed generations cost 0 credits.
Commercial Use and Image Rights
FLUX.1 Schnell is released under Apache 2.0; generated use remains subject to applicable law and site terms.
- Model used: FLUX.1 Schnell
- Model developer: Black Forest Labs
- The inference route is managed internally and may change without changing the selected model
- Uploads are sent only to the configured inference service needed to complete the generation
- You can delete any generation from your history at any time
Frequently Asked Questions
Why add an older FLUX model?+
It is still an exact, active, commercially usable open endpoint and provides a useful low-cost baseline.
Schnell or FLUX.2 Turbo?+
Schnell is the open four-step baseline; FLUX.2 Turbo is newer and generally better for current production drafts.
Release History and Sources
August 1, 2024 · Model announced · open weights
This date applies to the event shown. Later API access, weights and availability on All Image AI may have different dates.
Explore this event on the image model timeline →
Related Models and Tools
AI Image Generator
Create an image, try a new look or transform a photo. Start with the result you want.
Image to Image
Start from an image. You decide how much of it survives.
AI Headshot Generator
A selfie becomes a professional headshot — same face.
Logo Generator
Editable SVG logo concepts, not flattened bitmaps.
Nano Banana 2.1
Create posters, product images and consistent characters with Google’s latest Nano Banana model.
Nano Banana 2 Lite
The speed-and-cost tier: drafts, batch exploration and live previews.
Nano Banana 2
The standard tier: generation, editing and multi-reference in one model.
Nano Banana Pro
The top tier for complex design, dense typography and product visuals.