MiniMax open-sources 33B multimodal video model H3

MiniMax has officially released MiniMax-H3 as an open-weight 33B general multimodal generation system, with weights published on Hugging Face. The model jointly understands text, images, video, and audio in a single context, and can generate up to 2K 15-second videos with native stereo audio instead of relying on post-produced sound. With immediate support from Diffusers, ComfyUI, SGLang Diffusion, and vLLM-related deployment tooling, H3 has quickly become one of the main open video-model launches drawing community attention.

Confirmed

Model scope and generation abilities: H3 is positioned as a unified multimodal model that supports text-to-video, image-to-video, video-to-video, and audio generation tied to text or image inputs, enabling synchronized audiovisual output. Posts also describe its value for video editing, reference-driven creation, scene control, and more consistent character generation within longer workflows.
Open release and local deployment: The weights are available on Hugging Face and have been adapted for Diffusers. ComfyUI announced Day-0 native support, including workflows such as text-to-video and image-to-video with first-frame, last-frame, or dual-frame control. SGLang Diffusion and vLLM deployment support were also highlighted. According to posts in the cluster, the model has been validated on GPUs including RTX 5090 and RTX 6000; with ComfyUI VRAM offloading, a single RTX 3060 can run 480P locally, while two RTX 6000 GPUs can run 2K stereo generation.
Rankings and product rollout: Posts citing Artificial Analysis say H3 ranked No. 1 in video editing, No. 2 in text-to-video, and No. 2 in image-to-video. According to @JaynitMakwana, Hailuo AI has already put H3 online with limited-time free trial credits, while also lowering prices for Agent video templates and enabling dual-task concurrency.
Community feedback: In posts relayed by @NerdyRodent and @heyronir, hands-on impressions described strong image quality, precise prompt following, better character consistency, and clearer text rendering.

Unconfirmed

@haremlifegame argued that H3 may have broader potential beyond video generation, including visual reasoning and even device control from environmental inputs after fine-tuning, which could matter for embodied AI or robotics. The cluster does not provide official confirmation or real-world demonstrations for those claims.

Why it matters

Native audiovisual generation: Generating picture and stereo sound together reduces the need for separate audio post-production and simplifies short-form video workflows.
Open video-model ecosystem: Strong open weights plus Day-0 toolchain support lower the barrier for local experimentation, fine-tuning, and workflow integration.
Beyond prompt-only generation: Because H3 is framed around shared multimodal context rather than a single input mode, it appears useful not only for text prompting but also for editing, reference-based control, and more production-oriented creative pipelines.

2026-08-02 ~ 2026-08-04 · 35 related posts

Full story(20 episodes)→

Episode 1: MiniMax H3 Video Model Tests Impress with Native 2K and Commercial Quality(2026-07-30, 59 posts)
Episode 2: MiniMax Releases Multimodal Model H3 with 2K Native Stereo Video(2026-07-30, 18 posts)
Episode 3: MiniMax H3 Model Coming Soon with Open Weights, Video and Multimodal Capabilities Spark Buzz(2026-07-30, 7 posts)
Episode 4: MiniMax H3 Tops Video Editing Chart, Announces Open Weights(2026-07-31, 7 posts)
Episode 5: Topview Launches MiniMax H3 at 30% of Seedance Price(2026-07-31, 9 posts)
Episode 6: MiniMax H3 Video Model Nears Release with ComfyUI Support(2026-08-01, 2 posts)
Episode 7: MiniMax H3 Video Model Hands-on: 2K Quality and Impressive Multi-shot Consistency(2026-08-01, 12 posts)
Episode 8: MiniMax Video Model Goes Viral with Stunning User Tests(2026-08-01, 61 posts)
Episode 9: MiniMax open-sources 33B multimodal video model H3(2026-08-02, 35 posts)
Episode 10: MiniMax H3 and FLUX3 Overcome Audio Hallucination(2026-08-02, 2 posts)
Episode 11: MiniMax H3 Local Tests: Benchmark Results and Comparisons Across GPUs(2026-08-03, 88 posts)
Episode 12: MiniMax H3 Video Generation Model Tests Impress Users(2026-08-03, 15 posts)
Episode 13: MiniMax H3 Runpod Template Adds Three Video Workflows(2026-08-03, 2 posts)
Episode 14: MiniMax Video Model Generates Educational Animations(2026-08-03, 3 posts)
Episode 15: MiniMax Releases Prompting Guide for H3 Video Model(2026-08-03, 4 posts)
Episode 16: MiniMax H3 Local Tests: Performance and Optimization Across GPUs(2026-08-04, 13 posts)
Episode 17: Ostris AI Toolkit Adds MiniMax H3 LoRA Training with Contrastive Guidance Loss(2026-08-04, 7 posts)
Episode 18: MiniMax Releases 33B Open-Weight Multimodal Model H3 with Local Deployment(2026-08-04, 10 posts)
Episode 19: NVIDIA Sol Engine Boosts MiniMax H3 Inference Speed by 3.95x(2026-08-04, 2 posts)
Episode 20: Same-Prompt Test: Hailuo H3 Beats Seedance 2.0 in Visual Quality(2026-08-04, 6 posts)

Primary sources

MiniMax Officially Releases H3 Video Generation Model with Audio Support — MiniMaxAI · 2026-08-03 11:17 (UTC+08:00)

MiniMax H3 Multimodal Generation: Mix Video, Image, Text, and Audio Inputs — piotrbinkowski · 2026-08-02
MiniMax Launches Open-Weight Video Model H3, Topping Video Editing Benchmarks — NerdyRodent · 2026-08-02
MiniMax H3 Open Weights Released: Community Tests Keyframe Interpolation — Hannibalj2ca · 2026-08-03
MiniMax H3 Dropped: T2V, I2V, and Reference-to-Video with Audio — multimodalart · 2026-08-03
MiniMax-H3 Weights Now Available on Hugging Face — blahblahsnahdah · 2026-08-03
MiniMax-H3 Model Card Surfaces: Omni-modal Generation with Native Stereo Audio — ostrisai · 2026-08-03
vLLM and MiniMax Release H3: Open-Weight Native Audio-Video Generation — vllm_project · 2026-08-03
MiniMax Launches H3: Native 2K Video with Stereo Audio Generation — Mobile-Pumpkin7944 · 2026-08-03
Beyond Video: The Disruptive Potential of MiniMax H3 Open-Source Multimodal Model — haremlifegame · 2026-08-03
MiniMax H3 Video Model Natively Integrated into ComfyUI — bdsqlsz · 2026-08-03
MiniMax-H3 Open Weights Released, Earning Praise for Image Generation — tsi_org · 2026-08-03
MiniMax Releases Open-Weight Video Model, Verified on RTX 5090 & RTX 6000 — HeyNayeem · 2026-08-03
MiniMax-H3 Video Model Announced as Open Source, Topping Video Editing Benchmarks — heyronir · 2026-08-03
MiniMax Launches H3 Video Model: Focuses on Multimodal Creation & Editing — JaynitMakwana · 2026-08-03
MiniMax H3 Launches: Free Trial with Generation Credits — JaynitMakwana · 2026-08-03
Minimax H3 Open-Weights Released: Runs 480p Video Locally on RTX 3060 — curiosity_catt · 2026-08-03
MiniMax H3 Understands Full Multimodal Context for Video Editing & Creation — JaynitMakwana · 2026-08-03
MiniMax H3 Open-Weight Tested: 8s Video Gen in 15 Mins on RTX 5090 — DavidmComfort · 2026-08-04

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