FLUX.3 Klein
Two-second, open-weights generation with multi-reference editing and layout boxes.
Image Generation
#8
of 20
6.1 pts behind #1
0
races led
0
weeks at #1
85.2
score
- Released
- Oct 15, 2026
- 4 days ago
- Context
- —
- n/a
- Price
- $0.015 / image
- list price
- Speed
- —
- median
- Modalities
- text · image
- outputs image
- Weights
- Open
- self-hostable
The 30-second version
Black Forest Labs' two-second, open-weights generator with multi-reference editing and layout boxes.
- 1Generates in about two seconds.
- 2Open weights for local and fine-tuned use.
- 3Layout boxes give precise composition control.
- 4$0.015 per image via API.
What you need to know
Purpose
Fast, controllable, open image generation for developers and pipelines.
What BFL optimised for
Speed and control in a compact open model.
Unique strengths
- Speed.
- Open weights.
- Region-level layout control.
Where it ranks
Current snapshot · illustrative scores · click any race to watch it
FLUX.3 KleinBest on each axis
Image Generation over time
Best use cases
01
Real-time apps
Interactive generation where waiting kills the experience.
02
Custom styles
Fine-tune on your brand or product line.
Strengths
Speed and price
Among the fastest and cheapest quality generators.
Weaknesses
Peak quality
A step behind the top closed models on aesthetics.
When to choose it, and when not to
Pick something else when…
- Hero images where only the most beautiful result will do.
Update history
The distilled version first; open any release for the deeper breakdown.
The FLUX family