FLUX.2 Klein 4B
Black Forest Labs's FLUX.2 Klein 4B.
Task Fit
Not marked for typed decisions in the current library.
Not marked for code agent in the current library.
Not marked for code in the current library.
Not marked for chat in the current library.
Not marked for rag in the current library.
Image or visual understanding, not necessarily image generation.
Native text-to-image or image editing model.
Not marked for video generation in the current library.
Not marked for voice in the current library.
Evidence level
How this is assessed →Memory and hardware-fit values are planning estimates unless a tested report is linked.
Variants and Quant Artifacts
Choose the artifact first; hardware fit follows from RAM, VRAM, format, and runtime.
| Quant | Format | Quality | Min RAM | Reco RAM | Runtime | Action |
|---|---|---|---|---|---|---|
| FP16 | diffusers | high | 24GB | 40GB | diffusers, comfyui | Plan with this |
| FP8 | diffusers | balanced | 16GB | 24GB | diffusers, comfyui | Plan with this |
Recommended Hardware
Lowest estimated 5-year cost that can run this model.
Plenty of fast-memory headroom for this model.
Highest local performance signal among compatible hardware.
Benchmarks
No benchmark data is available for this model yet.
Sources and compatibility
Execution evidence
Run FLUX.2 Klein 4B with a documented recipe
Recipes connect hardware, a model artifact, tools, settings, verification, and a reportable result.
No verified recipe is linked to this record yet.
Compatibility estimates remain available in the planner. A recipe appears here only after its exact stack and verification protocol are documented.
Similar Models
Black Forest Labs's FLUX.2 Dev.
Black Forest Labs's FLUX.2 Klein 9B.
Black Forest Labs FLUX.3 Image Klein is a 5.6B open-weight model for text-to-image generation and image editing. The distilled checkpoint targets 8-step generation and includes Diffusers, ComfyUI, and repository-hosted NVFP4 variants under the FLUX Kommunity License.