Flux 2
Lightweight open FLUX.2 Dev for fast generation and indexed multi-reference editing, plus Klein, Turbo, and Flash tiers.
Studio is in early access; availability resolves per project after sign-in.
- Endpoints
- 25
- Eligible
- 17
- Input schemas imported
- 25 / 25
- Delivery
- fal.ai
- Weights
- Not stated
- Developer
- Not stated in source
Overview
FLUX.2 [dev] pairs a streamlined open architecture with professional output fidelity for fast iteration and high-throughput production. It doubles as the LoRA fine-tuning foundation for custom styles and subjects. The edit endpoint composites multiple references via natural language with explicit image indexing, without masks or layers. Klein 4B and 9B, Turbo, Flash, realtime, and training endpoints round out the 25-endpoint family.
Capabilities
- Lightweight fast-iteration generation
- Indexed multi-reference NL editing
- LoRA training-ready base model
- JPEG and PNG flexible output
Best for
- Rapid prototyping
- High-volume budget generation
- Custom training workflows
Use cases
- Multi-image composition edits
- Mask-free background swaps
- Specialized editing fine-tunes
Endpoints
8 under review · 17 eligible. Cataloged is not the same as executable: Studio resolves which endpoints a project can run.
| Endpoint | Task | Catalog status | Inputs |
|---|---|---|---|
fal-ai/flux-2 | unknown | Under review | 11 fields · requires prompt |
fal-ai/flux-2/edit | image editing | Eligible | 12 fields · requires prompt, image_urls |
fal-ai/flux-2/flash | unknown | Under review | 9 fields · requires prompt |
fal-ai/flux-2/flash/edit | image editing | Eligible | 10 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/4b | unknown | Under review | 8 fields · requires prompt |
fal-ai/flux-2/klein/4b/base | unknown | Under review | 11 fields · requires prompt |
fal-ai/flux-2/klein/4b/base/edit | image editing | Eligible | 12 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/4b/base/edit/lora | image editing | Eligible | 13 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/4b/base/lora | lora training | Eligible | 12 fields · requires prompt |
fal-ai/flux-2/klein/4b/edit | image editing | Eligible | 9 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/4b/edit/lora | image editing | Eligible | 10 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/4b/lora | lora training | Eligible | 9 fields · requires prompt |
fal-ai/flux-2/klein/9b | unknown | Under review | 8 fields · requires prompt |
fal-ai/flux-2/klein/9b/base | unknown | Under review | 11 fields · requires prompt |
fal-ai/flux-2/klein/9b/base/edit | image editing | Eligible | 12 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/9b/base/edit/lora | image editing | Eligible | 13 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/9b/base/lora | lora training | Eligible | 12 fields · requires prompt |
fal-ai/flux-2/klein/9b/edit | image editing | Eligible | 9 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/9b/edit/lora | image editing | Eligible | 10 fields · requires prompt, image_urls |
fal-ai/flux-2/klein/9b/lora | lora training | Eligible | 9 fields · requires prompt |
fal-ai/flux-2/klein/realtime | unknown | Under review | 8 fields · requires image_url |
fal-ai/flux-2/lora | lora training | Eligible | 12 fields · requires prompt |
fal-ai/flux-2/lora/edit | image editing | Eligible | 13 fields · requires prompt, image_urls |
fal-ai/flux-2/turbo | unknown | Under review | 9 fields · requires prompt |
fal-ai/flux-2/turbo/edit | image editing | Eligible | 10 fields · requires prompt, image_urls |
Questions
How are edit inputs referenced?
By index number or natural description, for example image 3 onto image 1.
What tiers exist beyond dev?
Klein 4B and 9B, Turbo, Flash, realtime, and LoRA trainers.