Local video gen on M5 Ultra: Pika H3 Flex + NVIDIA Regenerate-2K, 1088p in 12 minutes
TgoAI · reddit · 2026-10-31
A Reddit user shares a fully local video generation workflow on an M5 Ultra Mac (run via Valtz):
- Pika H3 Flex: a distilled MiniMax H3 model cutting generation from 50 steps to just 6, producing a 15-second 768p video
- NVIDIA Open-H3-Regenerate-2K: latent upscaling followed by 3 diffusion steps to regenerate details at higher resolution (rather than pixel-space upscaling), refining output to 1920×1088
Total time: 12m 19s including both stages. The sample selfie-style clip in front of Tokyo Tower looks natural, demonstrating a viable two-stage "fast distilled generation + diffusion refinement" pipeline on consumer local hardware.
More from Infra
- A 6-step CUDA for ML study path: GPU MODE lectures to FlashAttention source — cneuralnetwork · 2026-10-31
- Google and Foxconn Partner to Deploy AI Data Centers in Just Six Months — emmanuelvivier · 2026-10-31
- NVIDIA Extends Agent Toolkit to Engineering: PhysicsNeMo Goes Agent-Ready — emmanuelvivier · 2026-10-31
- Strata 0.2.9 adds 1-bit DeepSeek, 1.8x faster prompts on Strix Halo and 1.45x parallel speedups — danielhanchen · 2026-10-31
- Analyst: orbital compute buildout will exceed terrestrial per month by 2032-2033 — JOBhakdi · 2026-10-31
- Two 256GB Mac Studios beat one 512GB for local LLMs: 2.2TB/s effective bandwidth — lxfater · 2026-10-31