What Is HiDream I1 Fast?
HiDream I1 Fast is the 16-step member of the 17B HiDream I1 foundation-model family. It keeps negative-prompt, step and seed control while cutting the default sampling workload far below the Full checkpoint.
HiDream Model Versions
HiDream I1 Fast
16 steps · 2K
From 1 Credits
HiDream O1 Image
One native model for generation, natural-language editing and subject-driven reference composition.
- Resolutions: 1K / 2K
- Reference images: up to 3
- Modes: Text to Image, Image to Image, Edit Image, Multi-reference
- Speed: Slow
HiDream I1 Full
A large open image foundation model with classic diffusion controls and broad style range.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Slow
HiDream I1 Fast
The 16-step HiDream I1 checkpoint for fast open-model concepts without losing the family’s visual range.
- Resolutions: 1K / 2K
- Reference images: not supported
- Modes: Text to Image
- Speed: Fast
What Is HiDream I1 Fast Best For?
- Fast open-model drafts
- Broad style exploration
- Illustration and photography concepts
- Fixed-seed comparisons
How to Use HiDream I1 Fast
- Describe subject, light and medium.
- Start at sixteen steps.
- Compare several seeds at 1K.
- Move demanding finals to HiDream I1 Full.
HiDream I1 Fast Settings Explained
Steps
Sixteen is the documented Fast default; higher values trade latency for a diminishing detail gain.
Negative Prompt
Remove visible defects without adding an unsupported guidance control.
The panel above shows only the parameters HiDream I1 Fast actually supports. Switch versions and unsupported controls disappear rather than sitting there doing nothing.
HiDream I1 Fast Prompt Examples
Editorial scene
Sunlit ceramic studio, shelves of imperfect handmade vessels, dusty beams of light, quiet documentary photography
Fantasy concept
Ancient observatory growing from a giant tree canopy, brass instruments, blue hour mist, intricate storybook illustration
HiDream I1 Fast Test Results
Testing in progress
Every model runs the same eight-category prompt set — portrait, product, poster text, anime character, interior, multi-reference, image editing and character consistency — recording generation time, success rate, text accuracy and identity retention. That run has not finished for HiDream I1 Fast, so this page shows no scores. We do not publish numbers we have not measured.
HiDream I1 Fast Limitations
- Text-to-image only
- Fine detail trails HiDream I1 Full
- No guidance control on this exact endpoint
HiDream I1 Fast Pricing and Credits
Credits scale with resolution and image count. The Generate button always shows what this run costs.
1K
1 credits / image
2K
3 credits / image
Failed generations cost 0 credits.
Commercial Use and Image Rights
Commercial use is subject to the HiDream model licence and the selected service terms.
- Model used: HiDream I1 Fast
- Model developer: HiDream.ai
- The inference route is managed internally and may change without changing the selected model
- Uploads are sent only to the configured inference service needed to complete the generation
- You can delete any generation from your history at any time
Frequently Asked Questions
How is Fast different from Full?+
Fast uses a 16-step default for lower latency; Full exposes a slower 50-step workflow for final detail.
Can it edit an image?+
Not on this exact endpoint. HiDream O1 is the family option for reference-driven editing.
Release History and Sources
April 7, 2025 · Open weights released
This date applies to the event shown. Later API access, weights and availability on All Image AI may have different dates.
Explore this event on the image model timeline →
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