HunyuanVideo 1.5

8.3B text-to-video and image-to-video DiT by Tencent with SSTA attention; a step-distilled variant reaches 480p in 8–12 steps. Coverage here is narrow and the reason is memory — all four cards with a recipe are 24 GB or larger, the 3090 and 3090 Ti sit right on that envelope, and only the 5090 has real headroom. Read the licence before you start: the Tencent Hunyuan Community terms exclude the EU, UK and South Korea.