H3 Max Turbo

H3 Max is fal’s post-trained video-generation model, based on MiniMax’s open-weight video model. It combines model post-training with systems and hardware optimization to reduce generation time while maintaining video quality, supporting fast generation, interactive streams, and professional video workflows. Its continuous-video experiments can retain previous scene context and respond to new directions while a stream is running, with development focused on controllable camera movement, lighting, characters, motion, and lip sync.

MiniMax H3 is MiniMax's general-purpose omnimodal generative system for understanding text, images, video, and audio and generating video with native 32 kHz stereo audio. It supports 4–15-second outputs at 24 FPS across a wide range of aspect ratios; the shorter side is 768 pixels by default, with 2K generation available through H3-Regenerate-2K. Its H3-Base-FL2VA variant supports text-to-video, first-frame-to-video, last-frame-to-video, and first-and-last-frame-to-video modes, while H3-Base-Ref2VA accepts mixed image, video, and audio references. The repository also provides a prompt-writing skill and style-specific video-generation skills for the MiniMax Hub canvas workflow. H3 is available through MiniMax's global and China APIs, web apps, and desktop apps; the video describes its weights as open and runnable at 768p.

H3 Max Director is a public AI model for action-controlled continuous video. It maintains memory of previous scenes and accepts live prompt-based direction while video is running, enabling control over elements such as camera movement, lighting, characters, motion, and lip sync. It is described as fal's post-trained version of MiniMax's open-weight video model, combined with systems and hardware optimization for real-time generation.

A ComfyUI acceleration extension for the native MiniMax H3 audio-video model. It reduces expensive transformer evaluations during sampling by retaining the packed hidden state after actual transformer steps, then using Chebyshev ridge regression to forecast that state on selected forecast steps. Forecast steps skip the H3 transformer blocks and continue through the native output and sampler path, with adaptive scheduling, sampler-aware safeguards, CPU/VRAM history storage, and native fallbacks. Spectrum is a training-free approximate accelerator: forecasted states alter the denoising trajectory, so outputs can differ from native H3 even with the same seed and workflow.

MiniMax is an artificial-intelligence company and model provider offering large language models through hosted APIs, including models designed for coding, reasoning, and tool-using agent workflows. It is used as a model provider by agent frameworks such as Hermes Agent.