Model reference · open weights

HiDream-I1-Fast

Available as managed deployment Image city96 Text→image 1 variants 10k dl/mo

HiDream-I1-Fast is an open-weight image model from city96. 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

Makercity96
TypeImage models
TaskText→image
Runs withgguf
Based onHiDream-ai/HiDream-I1-Fast
Released2025-04-17
Popularity10k downloads / month
LicenceOpen weights

About

What HiDream-I1-Fast is

This is a direct GGUF conversion of HiDream-ai/HiDream-I1-Fast

The model files can be used with the ComfyUI-GGUF custom node.

Place model files in ComfyUI/models/diffusion_models - see the GitHub readme for further install instructions.

The VAE and additional files can be downloaded from Comfy-Org/HiDream-I1_ComfyUI

Please refer to this chart for a basic overview of quantization types.

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

How it works

How image models work

Text promptwhat to makeText encoderunderstands itDiffusion stepsdenoise to pixelsImagePNG / JPEGA diffusion model starts from noise and denoises it, guided by your prompt, into a finished image.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys city96-hidream-i1-fast for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (city96-hidream-i1-fast 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":"city96-hidream-i1-fast","prompt":"a red bicycle","size":"1024x1024"}'

Create an account — your API key is available in the console. 5M tokens/month currently included with every new account at launch.

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