News / Model Watch · Product Launch
MiniMax Design: the H3 Video Model Gets an Agent Workbench
Three weeks after open-sourcing the H3 video model, MiniMax shipped the layer that tries to sell it: MiniMax Design, a multimodal creation agent workbench launched August 20. The pitch is an interaction shift — from manipulating pixels to manipulating semantics. A compact brief on what shipped, what it isn't, and why the market cheered.
MiniMax Design is a downloadable agent workbench over the H3 video model, launched Aug 20, 2026 (AI新榜/腾讯, AIbase; product at design.minimaxi.com). You describe intent in natural language; agents decompose the task and call models/skills end-to-end — including a 3D "director stage" for previewing composition before generation, and ComfyUI integration. It is a product, not an API — H3 model endpoints remain the programmatic path.
What shipped, per launch coverage
- Agent-first creation flow. Goal understanding → task decomposition → model/skill calls → asset processing, generation, editing, delivery. Coverage frames it as turning H3's model capability into commercial productivity.
- 3D director stage. Describe scenes and camera moves in language, preview the composition in 3D space, then generate — moving iteration (and its cost) ahead of the expensive render.
- Plays with existing tooling. ComfyUI and other current workflows can be wired in, rather than replacing the pipeline teams already run.
- Target tracks: e-commerce, short drama, brand advertising — volume-and-iteration businesses.
- Market reaction: MiniMax (00100.HK) +14% the next day alongside Zhipu (+11%) — the "HK large-model duo" rally (ZAKER, Aug 21).
What it isn't — the model layer is still where API builders live
Design is a workbench, downloadable from design.minimaxi.com — not a public API. For programmatic video generation, the H3 model layer is unchanged: hosted API billing per second (≈$0.13/s reported at launch), and open weights since Aug 3 under a community license that excludes US/EU/UK/South Korea from self-hosting (see our H3 open-weights brief). Worth keeping separate: Design is MiniMax trying to capture workflow value above the model; the model endpoints are what a relay or your own pipeline calls.
Primary sources
FAQ (2026)
What is MiniMax Design?
A creation-agent workbench over the H3 video model, launched Aug 20, 2026 — natural-language intent in, decomposed multi-step production out.
vs prompting H3 directly?
Design adds task decomposition, a 3D director stage, and ComfyUI hookup. The H3 API stays the programmatic path.
Does it have an API?
No public API at launch — it's a downloadable workbench. Model endpoints remain separate.
What's H3, again?
MiniMax's omni-modal video model (Jul 31): 15s, 2K, stereo audio; weights since Aug 3 with regional license limits; hosted API ≈$0.13/s.
Target industries?
E-commerce, short drama, brand advertising — coverage's framing: from manipulating pixels to manipulating semantics.
Market reaction?
00100.HK +14% the day after launch, alongside Zhipu's +11% — the "HK large-model duo" rally.