Stock Markets July 31, 2026 12:16 AM

MiniMax Shares Jump After Release of H3 Multimodal AI Model

New H3 model promises short-form 2K video generation at materially lower cost, while Stock Connect hopes and a broader AI rally lift sentiment

By Caleb Monroe
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MiniMax shares climbed 15.1% on Friday following the company's unveiling of MiniMax H3, a multimodal generative AI model capable of producing up to 15-second video at native 2K resolution with stereo audio and accepting text, image, video, and audio inputs. The company said H3 runs at roughly one-third of prevailing industry costs and plans to open-source the model within days. Rising expectations around potential Stock Connect inclusion and a supportive regional tech rally added momentum to the move.

MiniMax Shares Jump After Release of H3 Multimodal AI Model
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Key Points

  • MiniMax released H3, a multimodal AI model that creates up to 15-second video at native 2K resolution with stereo audio and accepts text, image, video and audio inputs - impacts AI and tech sectors.
  • Company reported H3 runs at approximately one-third of prevailing industry costs, a potential competitive advantage for pricing and unit economics in AI-driven content generation - impacts AI infrastructure and cloud/service economics.
  • Investor sentiment was bolstered by rising expectations of Stock Connect eligibility, which could allow mainland Chinese investors to buy the stock via the southbound link and has been estimated to channel tens of billions of Hong Kong dollars into eligible names - impacts Hong Kong equity flows and investor demand.

MiniMax shares surged 15.1% on Friday after the company publicly introduced MiniMax H3, a next-generation multimodal generative AI model. The company described H3 as capable of producing video content up to 15 seconds long at native 2K resolution, complete with built-in stereo audio. The model accepts a variety of input formats, including text, images, video clips and audio, and MiniMax said it intends to open-source the model within days.

Executives framed H3 as a substantive step for the company since listing publicly, calling the release one of the most significant product launches in the firm's short history as a traded company. Market participants reacted to more than the product's capabilities alone: MiniMax stated that H3 operates at roughly one-third of prevailing industry costs, a pricing point that analysts and investors flagged as a competitive differentiator.

Investor enthusiasm was amplified by concurrent speculation that MiniMax may soon become eligible for the Stock Connect program, which would permit mainland Chinese investors to buy the stock directly through the southbound trading link. Previous estimates referenced in market conversations suggested that Stock Connect eligibility could channel tens of billions of Hong Kong dollars in fresh inflows into eligible names, a structural demand factor that traders said likely heightened sensitivity to the H3 announcement.

The release arrived into a broadly favorable market backdrop. Asian technology and AI equities rallied on Friday, mirroring an overnight advance on Wall Street that followed upbeat earnings reports from Microsoft and Amazon. That broader positive tone in tech and AI names provided additional support to MiniMax's market move.

While the product specifications, cost claims and the firm’s open-source plans were central to the immediate market response, observers also noted that the stock's performance coincided with elevated expectations for Stock Connect inclusion and a wider regional rally in tech shares, creating a clustering of factors that contributed to the price surge.


Summary

MiniMax rolled out H3, a multimodal AI model that generates short-form 2K video with stereo audio from multiple input types, claims roughly one-third of industry costs, plans to open-source the model within days, and saw its shares jump 15.1% amid hopes of Stock Connect eligibility and a broader tech rally.

Risks

  • Stock Connect inclusion remains an expectation rather than a certainty, creating uncertainty about the potential inflows and structural demand referenced by market estimates - impacts Hong Kong-listed equities and capital flows.
  • The stock's rally is partly tied to a broader regional tech and AI market upswing; a reversal in that macro sentiment could reduce support for MiniMax shares - impacts technology and AI equity performance.
  • The company said it plans to open-source the model within days, a timeline-dependent claim that introduces execution risk around the release and community reception - impacts developer adoption and competitive dynamics in AI tooling.

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