Stable Diffusion 3.5 Medium

stability-ai/stable-diffusion-3-5-medium · by Stability AI · Flow matching / rectified flow

Pricing — 1 offering(s)

Replicate

About this offering: A lighter (about 2.5B-parameter) sibling of Stable Diffusion 3.5 Large on the same MMDiT architecture: cheaper per image on Replicate ($0.035 vs $0.065) at somewhat lower fidelity. Open weights under the Stability AI Community License.

Default

$0.035 / image Current 2026-06-10 → present

Showing the active price and any recorded history. Full pricing history is available via the paid API — see API docs.

See how Stable Diffusion 3.5 Medium fits into a cost-aware routing setup

Capability profile

How Stable Diffusion 3.5 Medium rates across core capability dimensions, with the task-level evidence behind each rating.

Inference speed Strong

Lighter than SD 3.5 Large — faster and cheaper per image.

Photorealism Moderate

Prompt adherence Moderate

Compositional accuracy Moderate

Text rendering Moderate

Resolution ceiling Moderate

Operator guidance

Route here when budget and throughput matter more than peak fidelity; step up to SD 3.5 Large (or FLUX.1 [dev]/[pro]) for higher quality.

Use cases

Cost-sensitive, higher-volume generation where Large's fidelity isn't needed
Local / self-hosted use (open weights, smaller footprint than Large)

Provenance notice

Open weights; free commercial use capped by annual revenue, enterprise licence required above the threshold
Training set filtered to reduce unsafe content

Limitations

Lower fidelity and detail than SD 3.5 Large