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MiniMax H3 launches with open weights, but benchmark leadership varies by task

MiniMax has released H3 with downloadable weights. Arena.ai places it at the top among open models in its text-to-video and image-to-video arenas, while Artificial Analysis reports different rankings by task.

8/6/2026, 9:18:03 AM86% VERIFIED

MiniMax has released its H3 video model with downloadable weights. The multimodal system accepts text, images, video, and audio, and can generate short clips with native audio. Arena.ai reports that H3 leads the open-model field in both its Text-to-Video and Image-to-Video arenas, citing scores of 1,455 and 1,476 respectively.

The results are not consistent across evaluation platforms. Artificial Analysis ranks H3 first in Video Editing, second in Text-to-Video, and third in Image-to-Video. The Decoder has reported a similar breakdown. As a result, describing H3 as the unqualified overall SOTA model across both benchmark systems would be too broad; the available evidence supports a more limited claim that it is a leading open-weight video model and tops some task-specific rankings.

The open release gives developers more options for local deployment and workflow integration. Its standing should still be interpreted in light of each leaderboard’s methodology, task mix, sample set, and evaluation date.

Source evidence

MiniMax launches open-weight H3 and claims video benchmark lead - RuntimeWireruntimewire.com · supporting

MiniMax's H3 AI model performing at the top of a benchmark evaluation (Isometric 3D render with paper-cut materials, featuring chunky low-poly shapes and matte paper textures.) MiniMax, founded by Yan Junjie, said days after launching H3 that the model had become the highest-ranked open-weight video model on both Arena and Artificial Analysis. MiniMax on X [...] MiniMax's H3 blog frames the release as part of a push to "break task boundaries" across text, image, video and audio. The release's practical distinction is downloadable weights: the Comfy-Org Hugging Face model card provides weight-download instructions, and ComfyUI's H3 documentation gives developers local workflow examples. ### The public evidence is narrower than MiniMax's claim MiniMax's benchmark post says H3 is the leading open video-generation model on Artificial Analysis. MiniMax made the same claim for Arena. The Artificial Analysis leaderboard reviewed for this story listed H3 at No. 2 overall behind Google Gem

China's MiniMax H3 is the first open model to top an AI video ...the-decoder.com · supporting

Aug 3, 2026 MiniMax releases H3 video model weights, putting an open model at the top of a video ranking for the first time. Artificial Analysis ranks H3 first in Video Editing, second in Text-to-Video, and third in Image-to-Video. The 33-billion-parameter model processes text, images, video, and audio together, generating four- to 15-second clips with stereo sound. According to the model card, a single prompt can include up to nine reference images, three video clips, and three audio clips. Video by MiniMax H3 [...] ### AI News Without the Hype – Curated by Humans Subscribe to THE DECODER for ad-free reading, a weekly AI newsletter, our exclusive "AI Radar" frontier report six times a year, full archive access, and access to our comment section. Subscribe now Source: HuggingFace wpDiscuz [...] Video by MiniMax H3 Two pieces remain closed, though. The 2K resolution module and H3-Context-IR, which translates prompts and reference material into a structured intermediate format, a

Arena.ai on X: "MiniMax H3 by @MiniMax_AI is in the Video Arena! Available in Text-To-Video and Image-To-Video arenas. Open weights coming soon. Bring your most creative prompts and start voting. Scores on the way. https://t.co/4zAh33fbp3" / Xx.com · supporting

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MiniMax-H3 by @MiniMax_AI is now the #1 open model in ...x.com · supporting

Log inSign up ## Post user avatar Arena.ai @arena Big news: MiniMax-H3 by @MiniMax\_AI is now the #1 open model in Video Arena: across both Text-to-Video and Image-to-Video. This is +280pts over the next best open model, hunyuan-video-1.5, and a huge improvement from Hailuo-2.3 at #27 (1199 pts) and Hailuo-02-pro at #28 (1197 pts). In Image-to-Video specifically, it scored 1476 pts, just 2 pts away from Dreamina Seedance-2.0 (1478), making it tied for#1 overall! Learn more about how MiniMax-H3 performed in Text-to-Video Arena in thread. user avatar MiniMax (official) @MiniMax\_AI Aug 3 MiniMax-H3 Is Now Publicly Available huggingface.co/MiniMaxAI/Mini… 00:00 10:37 PM · Aug 3, 2026129.1KViews user avatar Arena.ai @arena 20h [...] Arena.ai @arena 20h In Text-to-Video Arena, MiniMax-H3 scored 1,455 pts, just 3 pts away from Muse Video (1458 pts), making it tied for#3 overall! Another big improvement from Hailuo-2.3 at #23 (1260 p

MiniMax H3 is #1 in Video Editing and ranks top 3 in both Text to ...x.com · supporting

MiniMax H3 is #1 in Video Editing and ranks top 3 in both Text to Video and Image to Video on Artificial Analysis. MiniMax plans to release its weights under the MiniMax Community License, which would make it the leading open weights model by far MiniMax H3 is the latest video model from MiniMax and the successor to their Hailuo family. The model has a multimodal architecture, accepting text, images, videos, and audio clips as input to generate 5-15s clips at 24fps with native audio generation. Video input support also makes MiniMax H3 one of the few models capable of instruction-based video editing, where it takes the #1 spot in our Video Editing Leaderboard. The model is also #2 in Text to Video, and #3 in Image to Video. MiniMax H3 is available now in the Hailuo AI app and via the [...] use for organizations under $20M in revenue, subject to prominent attribution requirements. If released, MiniMax H3 would become the strongest open weights video model, well ahead of the previous ope

MiniMax (official) on X: "MiniMax H3 is now the SOTA open video generation model in both @arena and @ArtificialAnlys benchmarks." / Xx.com · supporting

Log inSign up ## Post user avatar MiniMax (official) @MiniMax\_AI MiniMax H3 is now the SOTA open video generation model in both @arena and @ArtificialAnlys benchmarks. user avatar Arena.ai @arena Aug 3 Big news: MiniMax-H3 by @MiniMax\_AI is now the #1 open model in Video Arena: across both Text-to-Video and Image-to-Video. This is +280pts over the next best open model, hunyuan-video-1.5, and a huge improvement from Hailuo-2.3 at #27 (1199 pts) and Hailuo-02-pro at #28 (1197 10:45 PM · Aug 3, 202620.8KViews user avatar Harry Tandy @HarryTandy Aug 3 SOTA and it’s not even close Open video is finally getting real competition 235 user avatar Thomas Unise @thomasunise Aug 3 Ain’t no way grok is that high lmao. 177 user avatar [...] Ain’t no way grok is that high lmao. 177 user avatar millennialboomer @millennialboomn Aug 3 Thanks for open sourcing it, appreciate what you guys share. 159