BELLISTE / AI COMPARISON

Compare AI models

Choose two models from the same AI category to compare equivalent plans, capabilities and technical details.

Black Forest Labs

FLUX — Black Forest Labs

97%

Stable Diffusion

97%

Estimated Belliste score, based on the available capabilities, quality, features and pricing information. It is an indicative profile estimate, not an independent benchmark.

How this profile estimate is calculated

Capabilities contribute 35%, quality wording 30%, listed features 20%, and pricing 15% when available. When capability fields are absent, specialization breadth supplies a 25% fallback. Missing categories are omitted and the remaining weights are rescaled. The estimate uses each model’s own published profile; it does not measure answer accuracy or replace a hands-on test.

OverviewFLUX — Black Forest LabsStable Diffusion

PriceAPI from $0.014/image · FLUX 3 Image from $0.041 list priceSelf-host: Free under Community License for eligible users · API from $0.025/image

Free planNo general free hosted API tier · selected open-weight models available for local useYes — self-hosted Community License for eligible users; API includes 25 starter credits

Key comparison

SpecificationFLUX — Black Forest LabsStable Diffusion

Pricing

2 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Free PlanNo general free hosted API tier · FLUX.2 dev is free for non-commercial local development · FLUX.2 klein 4B open weights use Apache 2.0Community License: free for non-commercial use and commercial use below $1M annual revenue · Developer API starts with 25 free credits

Usage Limits / CreditsPay-as-you-go · 1 credit = $0.01 · FLUX.2 priced by megapixel/model · FLUX 3 Image priced by resolution tierAPI: 1 credit = $0.01 · SD 3.5 Flash 2.5 credits · Medium 3.5 · Large Turbo 4 · Large 6.5 · Ultra 8 per image

Overview

3 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Primary Use CaseProfessional image generation & image editingCustomizable AI image generation · self-hosting · production image workflows

Best ForDevelopers / Creative production / Marketing / Product visualization / E-commerce / DesignDevelopers / Creators / Fine-tuning / Local deployment / Marketing / Production

PlatformsBFL Playground · API · local/open-weight deployment for selected modelsSelf-hosted/local · Stability AI API · Stable Assistant · cloud partners

Image Generation

4 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Image-to-ImageFLUX 3 Image image-to-image · FLUX.2 multi-reference generation/editingStable Image generation endpoints accept a starting image with adjustable strength; ecosystem also supports custom img2img workflows

Aspect RatiosMultiple supported aspect ratios by model/resolution tier · output dimensions rounded to model requirementsMultiple API aspect ratios · self-hosted workflows can use model-supported custom resolutions

Batch GenerationBatch requests supported · cost multiplies by number of generated imagesSelf-hosted batching supported by implementation · API generation is request/credit based

Prompt EnhancementStrong complex prompt following · FLUX.2 supports up to 32K text input tokensStrong prompt adherence; negative prompts supported on API endpoints

Image Editing

6 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

InpaintingFLUX.1 Fill pro for masked inpainting / generative fillDedicated Stability AI Inpaint API + customizable self-hosted workflows

OutpaintingFLUX Outpainting tool · megapixel-based pricingDedicated Stability AI Outpaint API

Object RemovalFLUX Eraser dedicated removal toolDedicated Erase Object API

Background RemovalNo dedicated BFL background-removal endpoint documented as a core FLUX image toolDedicated Remove Background API

Background ReplacementPrompt/image editing workflows can replace scene/background contentReplace Background & Relight API

Generative FillFLUX.1 Fill pro · masked content generation and replacementInpaint / Outpaint services for masked and extended generative content

Control & Consistency

4 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Style ControlMulti-reference style guidance · precise color/hex control · FLUX.2 flex offers fine-grained guidance/stepsControl Style · Style Transfer · self-hosted LoRA/fine-tuning and prompt-based style control

Style ReferenceMulti-reference editing supports style and visual-reference guidanceControl Style / Style Transfer API plus self-hosted reference and adapter workflows

Pose / Composition ControlFLUX.2 JSON control system · pose guidance · generative expand/shrinkControl Sketch / Structure APIs · advanced pose controls available through ecosystem implementations

Seed ControlSeed parameter available on supported FLUX API generation endpointsSeed parameter supported in Stability AI generation API and standard self-hosted diffusion workflows

Quality & Design

3 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Typography / Logo GenerationStrong typography, infographics, UI mockups and design asset generation; raster outputRaster typography/design generation supported; quality depends on model and prompt

Vector GenerationNo native SVG/vector output documented for core FLUX image modelsNo native SVG/vector output in core Stable Diffusion 3.5 image models

Transparent BackgroundNo dedicated transparent-background output documented across core FLUX generation familyRemove Background API supports isolated foreground workflows; native transparent generation is not a core SD 3.5 base-model feature

Models & Customization

4 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Available ModelsFLUX 3 Image · FLUX.2 max/pro/flex/klein/dev · FLUX.1 Kontext · FLUX1.1 · Fill/Eraser/Outpainting toolsStable Diffusion 3.5 Large · Large Turbo · Medium · Flash · Stable Image Ultra/Core · legacy SDXL

Model SelectionChoose model/variant by quality, speed, typography, cost, editing or local-deployment needsChoose SD 3.5 variant by quality/speed/hardware needs; Stable Image services provide optimized hosted alternatives

Custom ModelsOpen-weight FLUX.2 models can be customized under applicable licensesHighly customizable · supports community fine-tunes, LoRAs and derivative workflows under applicable license terms

Model TrainingFine-tuning & LoRA rights included with BFL open-weight commercial licensing tiersFine-tuning and LoRA workflows supported; Stability AI Enterprise also offers custom model training upgrades

Developer & Integration

2 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

IntegrationsBFL Playground · REST API · open-weight/local deployment via supported distributionsSelf-hosted ecosystem · Stability AI API · Stable Assistant · cloud partners

Automation SupportREST API · batch generation · production deployment optionsREST API with asynchronous polling support · self-hosted pipelines can be automated

Commercial & Business

2 specifications

SpecificationFLUX — Black Forest LabsStable Diffusion

Team PlanNo seat-based hosted subscription · open-weight Builder/Platform/Professional licenses include 10 licensed usersNo standard seat-based Stable Diffusion team plan · organizations can use API credits or self-host under applicable license

Enterprise PlanEnterprise: all models/new releases · custom volume/domains/users · permissive commercial use · API + weights pricingEnterprise License with commercial deployment, implementation support and optional custom model training