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Black Forest Labs

FLUX 1.1 [pro] Ultra

VS
Black Forest Labs

FLUX.1 Fill [pro]

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

👑 Editorial Verdict: FLUX.1 Fill [pro] stands out as the superior choice over FLUX 1.1 [pro] Ultra. It is more cost-effective (costing $0.0500 per image vs $0.0600), generates images in a faster speed tier (fast), and supports a wider range of key feature strengths (like Inpainting, Outpainting, Object Removal).

Model Specs

FLUX 1.1 [pro] Ultra

Pricing & Speed

Cost per Generation
$60.00per 1,000 images
Speed Tier
fast
Max Resolution4K

Model Strengths

✨ Realism✨ High Resolution✨ Prompt Adherence
Model Specs

FLUX.1 Fill [pro]

Pricing & Speed

Cost per Generation1.2x cheaper
$50.00per 1,000 images
Speed Tier
fast
Max Resolution2K

Model Strengths

✨ Inpainting✨ Outpainting✨ Object Removal✨ Prompt Adherence
Read our data collection methodology

Frequently Asked Questions

FLUX.1 Fill [pro] is cheaper, costing $0.0500 per image generation compared to FLUX 1.1 [pro] Ultra at $0.0600 per image.

Both models generate images in the fast speed tier.

Both models share key strengths in: prompt adherence. FLUX 1.1 [pro] Ultra specializes in: realism, high resolution, prompt adherence. FLUX.1 Fill [pro] specializes in: inpainting, outpainting, object removal, prompt adherence.

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