Black Forest Labs' open-weights multimodal flow transformer for in-context image generation and editing, available for non-commercial use with character consistency and style transfer capabilities
Settled by community votes across 1 shared challenge, with an AI judge weighing in on each.
FLUX.1 Kontext [dev]
13.5
arena score
#43 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.
Seedream 4.5
26.1
arena score
#10 of 44 in Text-to-Image
Vote tally
Where the votes landed
FLUX.1 Kontext [dev]
0%
win rate
Ties
0%
Seedream 4.5
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.
Magic Burger Explosion: Fiery Photorealism Challenge
Text-to-Image“Ad for 'Magic Burger'. Dynamic, exploded burger with all components (bun, patty, cheese, lettuce, tomato, sauce) suspended in mid-air. Emphasize photorealistic detail and a sense of motion. Dark, fiery background with glowing embers. Integrate text: 'MAGIC BURGER' as a prominent title, 'LIMITED TIME ONLY' as a secondary message, and '€6.99' in a starburst, all rendered with a fiery, glowing effect.”
FLUX.1 Kontext [dev]
Seedream 4.5
AI Judge Analysis
FLUX.1 Kontext [dev]
- + Excellent typography rendering with clean, professional-looking fonts.
- + High-contrast colors and sharp, photorealistic burger textures.
- + Bold and clear secondary text that is easy to read.
- − Failed to create an 'exploded' view; the burger is fully assembled.
- − The starburst for the price is a flat graphic rather than an integrated fiery effect.
- − Typography has a minor spelling error in 'ONLY' (rendered as 'LNHLY').
Seedream 4.5
- + Successfully captured the 'exploded' motion with ingredients flying outwards.
- + Highly creative fiery typography that matches the prompt's aesthetic perfectly.
- + Dynamic starburst that looks integrated into the scene's lighting and embers.
- − The 'LIMITED TIME ONLY' text is slightly less crisp compared to the main title.
- − One ingredient (the cucumber/pickle slice) looks slightly detached from the rest of the realism.
Verdict: Seedream 4.5 is the clear winner as it successfully interpreted the 'exploded' burger instruction and the 'fiery, glowing effect' for the text, whereas FLUX.1 Kontext [dev] produced a static assembled burger with flat, non-fiery graphics. Seedream 4.5 also achieved perfect spelling and a much stronger sense of motion.
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ByteDance's latest image generation model unifying text-to-image and image editing in a single architecture, with improved text rendering and 30-40% faster generation than v4.0