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Open-weight model · Text to image

sd-turbo

by Stability AI stabilityai/sd-turbo

SD-Turbo is a fast generative text-to-image model that can synthesize photorealistic images from a text prompt in a single network evaluation. We release SD-Turbo as a research artifact, and to study small, distilled text-to-image models.

Parameters866M
Context
Weights13.0 GB
License
AccessOpen weights
Monthly Downloads348.5k

Runs On

What it takes to serve sd-turbo (866M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 1.7 GB 2.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.9 GB 1.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.4 GB 0.5 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

SD-Turbo is a fast generative text-to-image model that can synthesize photorealistic images from a text prompt in a single network evaluation. We release SD-Turbo as a research artifact, and to study small, distilled text-to-image models. For increased quality and prompt understanding, we recommend SDXL-Turbo. Please note: For commercial use, please refer to https://stability.ai/license. SD-Turbo is a distilled version of Stable Diffusion 2.1, trained for real-time synthesis. SD-Turbo is based on a novel training method called Adversarial Diffusion Distillation (ADD) (see the technical report), which allows sampling large-scale foundational image diffusion models in 1 to 4 steps at high…

Excerpt from the card by Stability AI.

Identity and Version

Repository
stabilityai/sd-turbo
Publisher
Stability AI
Task
Text to image
Modality
Image
Library
diffusers
Parameters
866M parameters
Languages
Not stated by the source
Revision
b261bac6fd2cf515557d5d0707481eafa0485ec2
First published
2023-11-27
Last updated
2024-07-10

Files and Weights

22 files, 13.0 GB in total. The weights are 7 files totalling 13.0 GB in safetensors.

Weights7 files · 13.0 GB
Configuration6 files · 4.9 KB
Tokenizer3 files · 1.6 MB
Documentation2 files · 17.8 KB
Other3 files · 1.1 MB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
sd_turbo.safetensorsWeights5.2 GB 3f067a1b943c
text_encoder/model.fp16.safetensorsWeights680.8 MB bc1827c46545
text_encoder/model.safetensorsWeights1.4 GB 67e013543d4f
unet/diffusion_pytorch_model.fp16.safetensorsWeights1.7 GB 40ec400881e2
unet/diffusion_pytorch_model.safetensorsWeights3.5 GB 438da6db739c
vae/diffusion_pytorch_model.fp16.safetensorsWeights167.3 MB 3e4c08995484
vae/diffusion_pytorch_model.safetensorsWeights334.6 MB 2aa1f43011b5
model_index.jsonConfiguration616 B
scheduler/scheduler_config.jsonConfiguration553 B
text_encoder/config.jsonConfiguration618 B
tokenizer/special_tokens_map.jsonConfiguration574 B
unet/config.jsonConfiguration1.9 KB
vae/config.jsonConfiguration655 B
LICENSE.mdDocumentation11.9 KB
README.mdDocumentation5.9 KB
image_quality_one_step.pngOther196.1 KB
output_tile.jpgOther741.2 KB
prompt_alignment_one_step.pngOther196.6 KB
.gitattributesRepository1.5 KB
tokenizer/merges.txtTokenizer524.6 KB
tokenizer/tokenizer_config.jsonTokenizer855 B
tokenizer/vocab.jsonTokenizer1.1 MB

License and Download

License
Not stated by the source
Access
Open weights, no gate
Download size
13.0 GB
Download from Stability AI

Released by Stability AI through its official repository on Hugging Face.

Memory Requirements

PrecisionWeights in memory
As published13.0 GB
16-bit1.7 GB
8-bit0.9 GB
4-bit0.4 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Questions About sd-turbo

How much GPU memory does sd-turbo need?

About 2.1 GB at 16-bit and 0.5 GB at 4-bit: the weights (866M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run sd-turbo on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

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