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Black Forest Labs

FLUX.1 Fill [dev]

VS
Wan (Kuaishou / ByteDance)

Z-Image-Turbo

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

Decision Recommendation

⚖️ Editorial Verdict: This comparison represents a classic price-to-performance trade-off. Z-Image-Turbo is the highly cost-efficient option, being 1.0x cheaper per generation. However, FLUX.1 Fill [dev] operates at a faster speed tier (standard). Choose Z-Image-Turbo for high-volume batches, and FLUX.1 Fill [dev] for interactive, real-time application pipelines.

Model Specs

FLUX.1 Fill [dev]

Pricing & Speed

Cost per Generation
Self Host
Speed TierFaster
standard
Max Resolution2K

Model Strengths

InpaintingOutpaintingObject RemovalPrompt Adherence
Model Specs

Z-Image-Turbo

Pricing & Speed

Cost per Generation
$5.00per 1,000 images
Speed Tier
real-time
Max Resolution2K

Model Strengths

Real-Time SpeedHigh-Volume Gen

Frequently Asked Questions

FLUX.1 Fill [dev] is cheaper as it is open source and can be self-hosted, whereas Z-Image-Turbo costs $0.0050 per image generation.

FLUX.1 Fill [dev] is faster, operating in the standard speed tier compared to Z-Image-Turbo which is in the real-time speed tier.

FLUX.1 Fill [dev] specializes in: inpainting, outpainting, object removal, prompt adherence. Z-Image-Turbo specializes in: real time, high volume.

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