Hy Image 3.5 Preview vs 
Imagen 4 Ultra
Hy Image 3.5 Preview is the newer model, released after Imagen 4 Ultra.
Hyperrealistic Portrait
One prompt, one photorealistic portrait. Skin, eyes, light.
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Which answer wins?
Price and specs
| Spec | Hy Image 3.5 Preview | Imagen 4 Ultra |
|---|---|---|
| Free API (OpenRouter) | No | — |
| Released | Oct 2026 | May 2025 |
Where to run it
Hy Image 3.5 Preview1 host
Imagen 4 Ultra
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Hy Image 3.5 Preview and Imagen 4 Ultra?
Hy Image 3.5 Preview is developed by Tencent while Imagen 4 Ultra is developed by Google AI. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.
Which is better, Hy Image 3.5 Preview or Imagen 4 Ultra?
It depends on your use case. Hy Image 3.5 Preview and Imagen 4 Ultra each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.
How can I compare Hy Image 3.5 Preview and Imagen 4 Ultra on Rival?
This page shows a side-by-side comparison of Hy Image 3.5 Preview and Imagen 4 Ultra 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
- Hy Image 3.5 Preview vs FLUX.3 ImageLanded Oct 2026
- Imagen 4 Ultra vs Nano Banana 2.1Landed Oct 2026
- Hy Image 3.5 Preview vs Recraft V4.1 FlashLanded Sep 2026
- Imagen 4 Ultra vs GPT Image 2.5 SunburstLanded Sep 2026
- Hy Image 3.5 Preview vs GPT Image 2.5 FlareLanded Sep 2026
- Imagen 4 Ultra vs Nano Banana 2 LiteLanded Jun 2026
- Hy Image 3.5 Preview vs Riverflow V2.5 FastLanded Jun 2026
- Imagen 4 Ultra vs Riverflow V2.5 ProLanded Jun 2026
Same lab, same size, long tail
- Hy Image 3.5 Preview vs Hunyuan Image 3Same lab
- Hy Image 3.5 Preview vs Nano Banana 2.1Same size
- Imagen 4 Ultra vs Nano Banana 2Same lab
- Imagen 4 Ultra vs FLUX.3 ImageSame size
- Hy Image 3.5 Preview vs GPT Image 1.5 (Medium)Same size
- Hy Image 3.5 Preview vs GPT Image 2Same size
- Hy Image 3.5 Preview vs GPT Image 2.5 SunburstSame size
- Hy Image 3.5 Preview vs Grok Imagine ImageSame size
