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Mini toolsFLUX.2 [klein] 4B
Model family: FLUX
FLUX.2-klein-4B is the smallest member of the FLUX.2 [klein] family: a 4B rectified-flow transformer that handles text-to-image plus image-to-image multi-reference editing in one compact model. It is their fastest distilled checkpoint, designed for interactive and latency-critical workflows, runs in about 13 GB VRAM on cards like RTX 3090/4070, and is released as fully open weights under Apache 2.0 for local, edge and production use.
Image
Gen 4
Overview
FLUX.2-klein-4B is Black Forest Labs’ 4B-parameter rectified-flow image model, unifying fast text-to-image and image-editing with multi-reference support, distilled for sub-second generation on consumer GPUs under Apache 2.0.
About Black Forest Labs
Born from foundational research, we continually build state-of-the-art technology that advances how the world is seen and understood.
View Company ProfileTools using FLUX.2 [klein] 4B
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Filip Backlund🛠️ 1 tool 🙏 38 karmaOct 15, 2025@FLUXThe renders look cinematic straight out of the gate. Flux handles texture and lighting beautifully. -
So far quite impressed, also fueled by fiat and crypto. Thank god
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It was great to do NSFW or semi-NSFW in the past, now it's useless if you want to do that, and free credits amounts reduces to only 100 for day, sad that the greatest free page falls in money beggars.
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Last updated: April 6, 2026
