Stable Diffusion vs Hunyuan 3 (Tencent Hy3)
Which one should you pick? Here's the full breakdown.
Stable Diffusion
Open-source AI image generation with unlimited free local use and full customization
Hunyuan 3 (Tencent Hy3)
Tencent's Hy3 Preview launched 2026-04-23 -- 295B total / 21B active MoE, 256K context, open-sourced on HuggingFace under tencent/Hy3-preview. Cheapest frontier-class API at ~1.2 RMB per million input tokens. Integrated into Yuanbao, WeChat, QQ
| Category | Stable Diffusion | Hunyuan 3 (Tencent Hy3) |
|---|---|---|
| Ease of Use | 4.0 | 7.0 |
| Output Quality | 9.0 | 8.0 |
| Value | 10.0 | 9.5 |
| Features | 9.0 | 8.0 |
| Overall | 8.0 | 8.1 |
Pricing Comparison
| Feature | Stable Diffusion | Hunyuan 3 (Tencent Hy3) |
|---|---|---|
| Free Tier | Yes | Yes |
| Starting Price | $0 | $0 |
Which Should You Pick?
Pick Stable Diffusion if...
- ✓Higher output quality (9 vs 8)
- ✓More features (9 vs 8)
Developers, tinkerers, and power users who want full control and are comfortable with technical setup. Also anyone on a budget -- it's genuinely free.
Visit Stable DiffusionPick Hunyuan 3 (Tencent Hy3) if...
- ✓Easier to use (7 vs 4)
Chinese-market builders, multilingual products that need strong CN performance, and cost-sensitive developers who want frontier-class quality at sub-DeepSeek pricing. Also anyone watching the open-weights field who wants Tencent's distribution-backed entry on the bench.
Visit Hunyuan 3 (Tencent Hy3)Our Verdict
Stable Diffusion and Hunyuan 3 (Tencent Hy3) are extremely close overall. Your choice comes down to specific needs -- Stable Diffusion is better for developers, tinkerers, and power users who want full control and are comfortable with technical setup, while Hunyuan 3 (Tencent Hy3) works best for chinese-market builders, multilingual products that need strong cn performance, and cost-sensitive developers who want frontier-class quality at sub-deepseek pricing.