Model family · Stability AI
Stable Diffusion
图片生成基础模型家族；Stable Image Ultra/Core 是服务产品名称，不应直接视为新的 Stable Diffusion 版本。
Applications and interfaces are not necessarily underlying models. Prices retain their unit and scope; recheck before purchase. Historical or deprecated entries are documentation, not recommendations.
Models #
- Name
- Stable Diffusion 3.5 Large
- Version
- 3.5
- Status
- Officially documented API model
- Name
- Stable Diffusion 3.5 Large Turbo
- Version
- 3.5
- Status
- Officially documented API model
- Name
- Stable Diffusion 3.5 Medium
- Version
- 3.5
- Status
- Officially documented API model
- Name
- Stable Diffusion 3.5 Flash
- Version
- 3.5
- Status
- Officially documented/priced; schema enum inconsistency requires integration check
- Name
- SDXL 1.0
- Version
- 1.0
- Status
- Legacy model still listed in API pricing
Historical / availability warning: read the documented status below.
- Name
- Stable Diffusion 3.0 API
- Version
- 3.0
- Status
- Deprecated April 17, 2025; requests rerouted to corresponding 3.5 models
Products #
- Name
- Stability AI API Platform
- Relationship
- Hosted model/service access
- Ui access
- Account platform; generation UI access not verified in this pass
- Api access
- REST API documented
- Name
- Stable Image Ultra
- Relationship
- Service based on SD 3.5 Large
- Ui access
- Not established from reviewed sources
- Api access
- Yes
- Name
- Stable Image Core
- Relationship
- Separate image-generation service; do not relabel as a specific Stable Diffusion version
- Ui access
- Not established from reviewed sources
- Api access
- Yes
Capabilities #
- Task
- SD 3.5 text-to-image and image-to-image
- Inputs
- text
- optional source image
- Outputs
- image
- Resolutions
- 1MP; default 1024×1024
- Formats
- PNG
- JPEG
- WebP
- Limitations
- 10MiB maximum request
- Image input sides at least 64 pixels
- Flash appears in prose/pricing but not model enum list
- Task
- Stable Image services: edit, upscale, control
- Inputs
- image
- text
- mask or guide depending on endpoint
- Outputs
- image
- Resolutions
- Upscalers advertise up to 4K or 4MP depending on endpoint
- Formats
- Not recorded, not necessarily unsupported
- Limitations
- Service-specific capabilities; not all features belong to base Stable Diffusion models
Pricing #
- Scope
- API
- Model or product
- Stable Diffusion 3.5 Large
- Amount
- 0.065
- Currency
- USD
- Unit
- successful generation
- Conditions
- 1 credit = USD 0.01; failed generations not charged
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- Stable Diffusion 3.5 Large Turbo
- Amount
- 0.04
- Currency
- USD
- Unit
- successful generation
- Conditions
- 1 credit = USD 0.01; failed generations not charged
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- Stable Diffusion 3.5 Medium
- Amount
- 0.035
- Currency
- USD
- Unit
- successful generation
- Conditions
- 1 credit = USD 0.01; failed generations not charged
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- Stable Diffusion 3.5 Flash
- Amount
- 0.025
- Currency
- USD
- Unit
- successful generation
- Conditions
- 1 credit = USD 0.01; failed generations not charged
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- Stable Image Ultra
- Amount
- 0.08
- Currency
- USD
- Unit
- generation
- Conditions
- 8 credits
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- Stable Image Core
- Amount
- 0.03
- Currency
- USD
- Unit
- generation
- Conditions
- 3 credits
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API
- Model or product
- SDXL 1.0
- Amount
- 0.009
- Currency
- USD
- Unit
- generation
- Conditions
- Starting rate, not universal fixed charge
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- Self-hosted
- Model or product
- Eligible Core Models
- Amount
- 0
- Currency
- USD
- Unit
- license fee
- Conditions
- Community eligibility and model-specific terms apply; compute is not free
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- Self-hosted
- Model or product
- Enterprise license
- Amount
- Not established from reviewed sources
- Currency
- USD
- Unit
- contract
- Conditions
- Custom quote
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
Commercial use #
Historical / availability warning: read the documented status below.
- Summary
- Community offering includes SD 3.5 suite for eligible users/businesses under USD 1M annual revenue. Commercial users above that threshold need Enterprise terms. This concerns self-hosted eligible Core Models, not free hosted API usage or every historical Stable Diffusion license.
Privacy #
- Summary
- Policy effective September 30, 2026 covers inputs/outputs and account/usage data. It permits training, fine-tuning and evaluation, with an opt-out for training use of personal data. Do not advertise a universal no-training guarantee or infer hosted privacy from self-hosting.
Contradictions #
- Summary
- Flash is priced and described in API reference but omitted from displayed model enum options; mark documented and verify exact request support before integration.
- Summary
- Pricing-page Medium parameter-count wording is ambiguous; API reference explicitly says 2.5B. Avoid copying ambiguous marketing wording.
Unknowns #
Browser generation product plans not verified.Source review: 2026-10-21
Historical / availability warning: read the documented status below.
Full historical Stable Diffusion version/license inventory not collected.Source review: 2026-10-21Endpoint-specific latency information is not recorded.Source review: 2026-10-21
Sources #
- Stability AI Platform ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- Stable Diffusion 3.5 API reference ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- Pricing ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- Stability AI License ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- Privacy Policy ↗
Reviewed 2026-10-21 · Evidence status: official page read · Effective September 30, 2026