Black Forest Labs' 12-billion parameter flow transformer for high-quality text-to-image generation, suitable for personal and commercial use with streaming support
Settled by community votes across 1 shared challenge, with an AI judge weighing in on each.
FLUX.1 [dev]
14.9
arena score
#42 of 44 in Text-to-Image
Skill signature
Not enough comparable category data
The chart appears once both models have ratings across at least three shared arena categories.
FLUX.2 [klein] 4B
23.8
arena score
#22 of 44 in Text-to-Image
Vote tally
Where the votes landed
FLUX.1 [dev]
0%
win rate
Ties
0%
FLUX.2 [klein] 4B
0%
win rate
Shared challenges
1
Challenge by challenge
The strongest take from each model on every shared challenge, with the AI judge's read.
The Halloween Invitation
Text-to-Image“Vintage gothic Halloween party invitation. Dark parchment poster, spooky border with webs and thorns, central glowing jack-o-lantern, bats, twisted trees, moody night sky. Add elegant gothic title text saying "Halloween Party Invitation", a small scroll banner saying "You are invited to a night of frights", and event details at the bottom: Date: 30.10.2026 Time: 7pm Location: The Arches, NYC Spooky but polished, cinematic lighting, square format.”
FLUX.1 [dev]
FLUX.2 [klein] 4B
AI Judge Analysis
FLUX.1 [dev]
- + Strong composition with a clear focal jack-o-lantern
- + Clean rendering of the thorn border
- + Excellent contrast and cinematic lighting
- − Major spelling errors in the main title
- − Redundant text listing 'Time' twice and adding commas in the date
- − Lack of visible cobwebs asked for in the prompt
FLUX.2 [klein] 4B
- + Successfully included all elements including cobwebs and the moody night sky
- + More accurate 'vintage gothic' parchment aesthetic
- + The banner text is almost perfectly spelled
- − The main title text is severely garbled and illegible
- − The date has a typo ('206' instead of '2026')
- − Visuals are slightly more cluttered compared to model A
Verdict: Both models struggled significantly with the specific text requirements, but FLUX.1 [dev] produced a more polished and professional-looking layout with superior lighting, despite the 'Falloween Rantcy' typo. FLUX.2 [klein] 4B better captured the requested gothic atmosphere with webs and parchment textures, but the large distorted title text makes it less usable for a real invitation.
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Black Forest Labs' compact, open-source image generation model with sub-second inference, optimized for production and near real-time applications with multi-reference support