FLUX.3 Image vs 
HiDream L1 (Fast)
FLUX.3 Image is the newer model, released after HiDream L1 (Fast).
Hyperrealistic Portrait
One prompt, one photorealistic portrait. Skin, eyes, light.
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Which answer wins?
Price and specs
| Spec | FLUX.3 Image | HiDream L1 (Fast) |
|---|---|---|
| Weights | — | Open |
| Free API (OpenRouter) | No | — |
| Released | Oct 2026 | Apr 2025 |
Where to run it
FLUX.3 Image1 host
HiDream L1 (Fast)
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between FLUX.3 Image and HiDream L1 (Fast)?
FLUX.3 Image is developed by Black Forest Labs while HiDream L1 (Fast) is developed by PrunaAI. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.
Which is better, FLUX.3 Image or HiDream L1 (Fast)?
It depends on your use case. FLUX.3 Image and HiDream L1 (Fast) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.
How can I compare FLUX.3 Image and HiDream L1 (Fast) on Rival?
This page shows a side-by-side comparison of FLUX.3 Image and HiDream L1 (Fast) across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
More comparisons
Against the newest arrivals
- FLUX.3 Image vs Hy Image 3.5 PreviewLanded Oct 2026
- HiDream L1 (Fast) vs Nano Banana 2.1Landed Oct 2026
- FLUX.3 Image vs Recraft V4.1 FlashLanded Sep 2026
- HiDream L1 (Fast) vs GPT Image 2.5 SunburstLanded Sep 2026
- FLUX.3 Image vs GPT Image 2.5 FlareLanded Sep 2026
- HiDream L1 (Fast) vs Nano Banana 2 LiteLanded Jun 2026
- FLUX.3 Image vs Riverflow V2.5 FastLanded Jun 2026
- HiDream L1 (Fast) vs Riverflow V2.5 ProLanded Jun 2026
Same lab, same size, long tail
- FLUX.3 Image vs FLUX 2 MaxVersion compare
- FLUX.3 Image vs FLUX Kontext MaxSame lab
- HiDream L1 (Fast) vs Hy Image 3.5 PreviewSame size
- HiDream L1 (Fast) vs Recraft V4.1 FlashSame size
- FLUX.3 Image vs Z Image TurboSame size
- FLUX.3 Image vs DALL-E 3Same size
- FLUX.3 Image vs FiboSame size
- FLUX.3 Image vs FLUX 2 DevVersion compare
