Model reference · open weights

prxpixel-t2i

Available as managed deployment Image Photoroom Text→image 1 variants 1k dl/mo

prxpixel-t2i is an open-weight image model from Photoroom. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.

Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.

What it is

Released byPhotoroom
TypeImage models
TaskText→image
Parameters (lead)7.0B
Runs withdiffusers
Released2026-06-11
Popularity1k downloads / month
LicenceOpen weights

About

What prxpixel-t2i is

PRXPixel is a pixel-space variant of PRX: it denoises raw RGB directly (no VAE), conditions on a Qwen3-VL text encoder (rather than T5Gemma), and feeds the generation resolution into the timestep modulation. The denoiser is a ~7B PRXTransformer2DModel with a bottleneck patch projection and a resolution embedder.

  • Resolution: 1024
  • Transformer: ~7B params, torch.bfloat16
  • Text encoder: Qwen3-VL text tower (Qwen3VLTextModel)
  • VAE: none (pixel space)
  • Scheduler: FlowMatchEulerDiscreteScheduler
Read the full model card

Requirements

[!IMPORTANT] PRXPixelPipeline is not yet in a released diffusers. Install diffusers from the branch that adds it, and use transformers >= 4.57 (the version that introduced Qwen3VLTextModel):

pip install "transformers>=4.57"
pip install "git+https://github.com/huggingface/diffusers.git@prx-pixel-pipeline"

Usage

import torch
from diffusers import PRXPixelPipeline

pipe = PRXPixelPipeline.from_pretrained("Photoroom/prxpixel-t2i", torch_dtype=torch.bfloat16)
pipe.to("cuda")

prompt = "A front-facing portrait of a lion in the golden savanna at sunset."
image = pipe(prompt, num_inference_steps=28, guidance_scale=5.0).images[0]
image.save("prxpixel_output.png")

License

Released under the Apache 2.0 license. See LICENSE and NOTICE.

From the published model card. Full card on the HuggingFace links in the sidebar.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys prxpixel-t2i for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (prxpixel-t2i below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/images/generations \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"prxpixel-t2i","prompt":"a red bicycle","size":"1024x1024"}'

Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.

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