BELLISTE / AI COMPARISON

Compare AI models

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

Stability AI

Stable Diffusion

97%

Leonardo.Ai

81%

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.

OverviewStable DiffusionLeonardo.Ai

PriceSelf-host: Free under Community License for eligible users · API from $0.025/imageFree $0/month · Essential from $12/month

Free planYes — self-hosted Community License for eligible users; API includes 25 starter creditsFree · 150 Fast Tokens/day

Paid plans—Essential $12/month · Premium $30/month · Ultimate $60/month

Usage limits—Free: 150/day · Essential: 8,500/month · Premium: 25,000/month · Ultimate: 60,000/month; API credits sold separately.

Key comparison

SpecificationStable DiffusionLeonardo.Ai

Starting PriceSelf-host: Free under Community License for eligible users · API from $0.025/image (SD 3.5 Flash)Free $0/month · Essential from $12/month

Text-to-ImageStable Diffusion 3.5 Large / Large Turbo / Medium / Flash text-to-imageMulti-model text-to-image · Leonardo Lucid/Phoenix plus supported third-party models

Image EditingStability AI API: Erase · Inpaint · Outpaint · Search & Replace · Recolor · Replace Background & RelightInline Editor · Omni editing · Canvas Editor · Realtime Canvas

Maximum ResolutionSD 3.5 Large: ~1 MP · SD 3.5 Medium: 0.25–2 MP · Stable Image Ultra API: 1 MP native · dedicated upscalers output up to 4KModel-dependent · core API dimensions up to 1536px per axis; selected models such as Krea 2 Turbo support up to 4096px per axis · separate Pro Upscaler available

Reference ImagesImage-to-image + Control Style/Structure/Sketch services; self-hosted reference workflows depend on implementationOmni models: up to 6 reference images · legacy Image Guidance offers Style/Content/Character and ControlNet options

Character ConsistencyNo single native SD 3.5 character-lock feature · commonly implemented through fine-tunes, LoRAs and reference/control workflowsCharacter Reference for likeness consistency · Omni models also support multi-reference contextual consistency

Text RenderingImproved typography and prompt adherence in SD 3.5; Ultra is optimized for stronger typographyStrong with Phoenix and newer supported models; quality is model-dependent

PhotorealismExcellent with Stable Image Ultra / SD 3.5 Large; quality varies by model and fine-tuneExcellent with Lucid Realism, Phoenix and supported photorealistic models

UpscalingCreative and Conservative Upscalers to 4K · Fast Upscaler 4× up to 4 MPPro Upscaler · Alchemy Upscaler · model/workflow-dependent enhancement

API AccessStability AI REST v2beta · Generate / Edit / Control / Upscale servicesLeonardo REST API · API credits/plans are separate from web subscriptions

Commercial UseCommunity License free for organizations under $1M annual revenue; Enterprise License required above $1M for covered Core ModelsCommercial use permitted · paid private generations retain full user ownership; free/public generations remain publicly accessible under platform terms