Flux Klein

4B or 9B flow transformer parameters (paired with an 8B text embedder), a 4B quantized file is about 4.5 GB while 9B is about 9.5 GB

• BARE MINIMUM

  NVIDIA GeForce RTX 3060 12GB

  12 GB VRAM

  ~$260 USED

  4B variant in FP8/GGUF, ~4 steps, ~2.5 s/image

  
• SWEET SPOT

  NVIDIA GeForce RTX 4070 Super 12GB

  12 GB VRAM

  ~$590 NEW

  4B in FP8 or 9B GGUF with system RAM offload, ~4 steps, ~1.1 s/image

  
• FULL POWER

  NVIDIA GeForce RTX 4090 24GB

  24 GB VRAM

  ~$1750 USED

  9B variant in FP8 / BF16 natively in VRAM, ~4 steps, ~0.4 s/image

  

HARDWARE PICKS & PRICES ARE RESEARCHED FROM THE LIVE WEB AND REFRESHED AUTOMATICALLY. TREAT THEM AS BALLPARK, NOT GOSPEL.

STARS ARE THE COMMUNITY SCORE FOR THAT KIND OF WORK, DOCKED FOR HOW SQUASHED THE WEIGHTS GET AT EACH TIER. TIMES ARE COMPUTED FROM RESEARCHED SPEEDS. BALLPARK, NOT GOSPEL.

Not enough discussion about Flux Klein yet to call it. We found 302 posts but people did not say much either way.

229 POSTS · 73 COMMENTS · REDDIT · GITHUB · X