DeepFloyd IF
Pixel-space diffusion model by DeepFloyd/Stability AI with strong text rendering.
About
DeepFloyd IF is a text-to-image model from the DeepFloyd Lab at Stability AI that generates in pixel space rather than latent space, using a cascade of three stages: a base model producing 64x64 images, an upscaler to 256x256, and a final upscaler reaching 1024x1024. All stages condition on a frozen T5-XXL text encoder through cross-attention in UNet architectures, which gives the model unusually strong prompt understanding and legible text rendering inside images. It reports a zero-shot FID score of 6.66 on COCO. Running the full pipeline takes about 24 GB of VRAM, the first two stages need 16 GB, and CPU offloading brings requirements down to roughly 14 GB. The code is available under a modified MIT license while the model weights carry the separate DeepFloyd IF license, which initially restricted use to research. Researchers and practitioners exploring high-fidelity generation, super-resolution, and inpainting are the main audience.
Should you use DeepFloyd IF?
Pick it when
Pick DeepFloyd IF for research into pixel-space cascaded diffusion or T5-conditioned prompt understanding, where you need to study or modify the 64, 256, and 1024 pixel stages separately on a 16 to 24 GB GPU.
Look elsewhere when
Skip it for products: the weights carry the separate DeepFloyd IF license, which initially restricted use to research. For legible text in images, Qwen-Image, CogView4, or Stable Diffusion 3.5 are newer and more clearly licensed.
Alternatives to DeepFloyd IF
- Stable Diffusion 3.5
Also uses a T5-XXL encoder for prompt adherence and text rendering, runs in latent space on 8 to 16 GB, and its Community License covers smaller businesses.
- Qwen-Image
Apache-2.0 and built for paragraph-level text inside images, the job DeepFloyd IF was known for, though the 20B model needs quantization on consumer cards.
- PixArt-Sigma
Another T5-conditioned research model but far smaller at about 0.6B parameters, generating up to 4K directly on around 8 GB of VRAM.
- CogView4
Apache-2.0 option with 1024-token prompts and native Chinese text rendering, at a similar 13 GB floor with CPU offload.
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Details
- Category
- Image Generation
- Price
- Free
- Platform
- Local/Desktop
- Difficulty
- Advanced (4/5)
- Minimum VRAM
- 16 GB
- Added
- Apr 3, 2026