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Black Forest Labs·Jan 15, 2026·FLUX.2 [klein] 9B and 4B·open source

FLUX.2 [klein]

FLUX.2 [klein] is a family of advanced image generation and editing models designed for real-time performance. They unify generation and editing in a single compact architecture, delivering state-of-the-art quality with end-to-end inference times under a second. Built for applications requiring real-time image generation without sacrificing quality, these models run on consumer hardware with as little as 13GB VRAM.

AIImage GenerationOpen SourceDeveloper ToolReal-Time Processing
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overview

FLUX.2 [klein] is a family of advanced image generation and editing models designed for real-time performance. They unify generation and editing in a single compact architecture, delivering state-of-the-art quality with end-to-end inference times under a second. Built for applications requiring real-time image generation without sacrificing quality, these models run on consumer hardware with as little as 13GB VRAM.

key features
  • 01Sub-second inference: Generate or edit images in under 0.5s on modern hardware.
  • 02Photorealistic outputs and high diversity, especially in the base variants.
  • 03Unified generation and editing: Supports text-to-image, image editing, and multi-reference generation in a single model.
  • 04Runs on consumer GPUs: The 4B model fits in approximately 13GB VRAM (RTX 3090/4070 and above).
  • 05Developer-friendly & Accessible: Apache 2.0 on 4B models, open weights for 9B models, full open weights for customization and fine-tuning.
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