Stable Diffusion vs Flux : comparaison complète ! Lequel choisir ? [2026]

Comparaison détaillée entre Stable Diffusion et Flux : tarifs, fonctionnalités, performances et bien plus. Trouvez l'outil qui vous convient le mieux.

Verdict :Stable Diffusion boasts the world's largest community and richest extension ecosystem (LoRA, ControlNet) for unmatched customization freedom. Flux has made major advances in text rendering and image quality, with Flux.1 Pro rivaling commercial models. Choose Stable Diffusion for customizability and community; Flux for cutting-edge image quality.

Présentation de Stable Diffusion & Flux

1

Stable Diffusion

An open source AI generation d'images model developpe par Stability AI. Can be run locally for free. Maximum customizability is its greatest strength.

En savoir plus sur Stable Diffusion
2

Flux

A de pointe AI generation d'images model by Black Forest Labs. Created by Stable Diffusion founders, offering fast, de haute qualite generation via API and open source.

En savoir plus sur Flux

Comparaison des fonctionnalités et tarifs

Développeur
Stable DiffusionStability AI
FluxBlack Forest Labs(元Stability AIチーム)
Tarification
Stable DiffusionExcellent — free (open source)
FluxExcellent — free (open source / Pro has commercial license)
Derniers modèles
Stable DiffusionStable Diffusion 3.5 (Large/Medium)
FluxFlux 1.1 Pro / Dev / Schnell
画像品質
Stable Diffusion非常にÉlevéい(SD3.5で大幅向上)
Flux非常にÉlevéい(Midjourneyに迫る品質)
Rendu de texte
Stable DiffusionFair — text rendering is a weakness
FluxExcellent — dramatically improved text in images
Vitesse de génération
Stable DiffusionStandard(モデルサイズ依存)
FluxSchnellモデルは超Élevé速
Personnalisation
Stable DiffusionExcellent — easy fine-tuning and LoRA training
FluxGood — fine-tuning supported (fewer resources than SD)
Communauté
Stable DiffusionExcellent — world's largest AI image generation community
FluxGood — rapidly growing but smaller than SD
必要VRAM
Stable DiffusionSD3.5 Medium: 8GB〜
FluxFlux Dev: 12GB〜

Notre verdict

Notre verdict

Stable Diffusion boasts the world's largest community and richest extension ecosystem (LoRA, ControlNet) for unmatched customization freedom. Flux has made major advances in text rendering and image quality, with Flux.1 Pro rivaling commercial models. Choose Stable Diffusion for customizability and community; Flux for cutting-edge image quality.

Recommandations par cas d'usage

1

Customizing with LoRA and ControlNet

Recommandé :Stable Diffusion

World's largest community and ecosystem with countless LoRA models and extensions.

2

Best possible image quality

Recommandé :Flux

Flux.1 Pro image quality rivals commercial models with dramatically improved text rendering.

3

Running on lower-spec GPUs

Recommandé :Stable Diffusion

Lightweight models (SD 1.5 etc.) run on as little as 4GB VRAM. Flux requires 8GB+.

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