Nox Orion 2.1 Pro (New)

Frontier AI health model that builds in 3D, codes, and renders video · Released in Nox: November 5, 2026 · Page last updated: October 24, 2026

Visualize your body: 3D models, code, and MP4 video

Orion 2.1 Pro is Orion 2.1 with a workspace. The model is unchanged — an 824-billion-parameter mixture-of-experts engine with the Peer Review answer pipeline — and it now has tools: it builds interactive pages, charts, calculators and complex 3D models, checks that they run in an isolated browser sandbox, and renders MP4 video entirely from code. It is built for health: visualize your heart, spine or lungs in 3D, turn a lab report into a chart, or make a short explainer video for a patient or a class.

Same model, new tools: Orion 2.1 Pro runs the same engine, Peer Review pipeline, thinking levels, live web access and Leo safety layer as Orion 2.1. The HealthBench Professional result therefore applies to Orion 2.1 Pro unchanged: evaluated October 23, 2026 on all 525 tasks at Ultra, raw 72.8%, length-adjusted 69.5%, listed first at 69.5 (95% CI 65.81–73.03) on the HealthBenchAI Professional results page on October 24, 2026 — third-party verified by healthbenchai.com; a tool-assisted evaluation, not a clinical validation.

Visualize your body: ask for a 3D model of an organ or system — the heart with its chambers, valves and vessels, the spine vertebra by vertebra, the lungs, a joint — and Orion builds it from code with Three.js, with rotate and zoom, labels, cutaways and animation. Health visuals are labelled as illustrative, never as exact medical simulation.

Code: Orion writes complete HTML, JavaScript, TypeScript, React and Python (run in the browser with numpy, pandas and matplotlib). Every artifact is built and checked in an isolated browser sandbox before it is shown; build and runtime errors go back to the model to fix within the same answer. Follow-up messages edit the same artifact, with version history, restore and download.

Video from pure code: Orion draws every frame on a canvas and encodes it to an H.264 MP4 in the browser, with no stock footage and no video model. You can play it in the preview and download the file.

Files: attach a file to a message (up to 500 MB) and Nox reads it for that chat. The original file is deleted once it has been read; Nox does not keep a file store.

Credits: building artifacts does not use credits; reading large scans, audio or video uses credits at cost.

Available in Plan mode on Pro and MAX, on the web app. Not on the Free plan or in the iOS app yet.

Capabilities

• Same model as Orion 2.1 — HealthBench Professional 69.5 length-adjusted (HealthBenchAI listing, October 24, 2026)
• Complex interactive 3D models of the body, built from code (Three.js) with labels, cutaways and animation
• Code in HTML, JavaScript, TypeScript, React and Python, checked in an isolated browser sandbox
• MP4 video rendered entirely from code, playable and downloadable
• Artifact source view, version history, restore and download

Model details

• Base model — Nox Orion 2.1 — same engine, Peer Review pipeline, thinking levels and Leo safety layer
• HealthBench Professional — 69.5 length-adjusted (raw 72.8%), all 525 tasks at Ultra, October 23, 2026; listed first on the HealthBenchAI Professional results page on October 24, 2026 (95% CI 65.81–73.03). Same model as Orion 2.1. Third-party verified by healthbenchai.com; tool-assisted evaluation, not a clinical validation.
• Artifacts — 3D models, pages, charts, calculators, Python programs and MP4 videos; built and checked in an isolated browser sandbox; versioned; downloadable. Building artifacts does not use credits.
• Video — H.264 MP4 rendered frame by frame from code in the browser
• Files — Attach a file (up to 500 MB) and Nox reads it; the original is deleted after reading
• Available on — Plan mode on Pro and MAX, web app

Availability: Available in Plan mode on Pro and MAX, on the web app.

Nox Orion 2.1 Pro — frequently asked questions

What is Nox Orion 2.1 Pro?

Nox Orion 2.1 Pro is Nox's frontier ai health model that builds in 3d, codes, and renders video. Orion 2.1 Pro is Orion 2.1 with a workspace. The model is unchanged — an 824-billion-parameter mixture-of-experts engine with the Peer Review answer pipeline — and it now has tools: it builds interactive pages, charts, calculators and complex 3D models, checks that they run in an isolated browser sandbox, and renders MP4 video entirely from code. It is built for health: visualize your heart, spine or lungs in 3D, turn a lab report into a chart, or make a short explainer video for a patient or a class.

What can Nox Orion 2.1 Pro do?

Nox Orion 2.1 Pro's capabilities: Same model as Orion 2.1 — HealthBench Professional 69.5 length-adjusted (HealthBenchAI listing, October 24, 2026); Complex interactive 3D models of the body, built from code (Three.js) with labels, cutaways and animation; Code in HTML, JavaScript, TypeScript, React and Python, checked in an isolated browser sandbox; MP4 video rendered entirely from code, playable and downloadable; Artifact source view, version history, restore and download.

Which Nox plans include Nox Orion 2.1 Pro?

Available in Plan mode on Pro and MAX, on the web app.

Related Nox models

• Nox GHI 1 — The officially released model system that powers Pebs, Nox's agent
• Nox Orion 2.1 — The flagship, now with a peer-review answer pipeline
• Nox Orion Flash 2.1 — The fast Orion on a new engine — 552B mixture-of-experts, native photo input
• Nox Vela 2.1 — The fast model on every plan
• Nox Voice 2 — The most powerful Nox voice yet — expressive, interruptible, Plan mode in the call

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