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HeyGen to Demo Open-Source HyperFrames Video Framework at San Francisco AI Meetup

July 16, 2026 at 16:22 EDT

Media Generation
Open Source
AI Agents

HeyGen will showcase its open-source video framework HyperFrames at a Temporal-hosted AI meetup in San Francisco on Tuesday, July 28, appearing alongside Modal and Vapi for live demos and discussion. The event centers on "durable AI" workflows, and prospective attendees can request to join.

July 28 · San Francisco · HeyGen

HyperFrames: video that AI agents write in code

HeyGen's open-source framework lets AI agents author HTML, CSS and JavaScript that render into a deterministic MP4 — the same input reliably yields the same output. It debuts live at a "durable AI" meetup alongside Modal and Vapi.

Apache 2.0

Open-source license, released on GitHub

CLI steps: init → preview → render

1 MP4

Graphics + avatar + music merged into one file

The workflow: from prompt to rendered MP4

STEP 1

init

Agent writes HTML/CSS/JS

→

STEP 2

preview

Review in the browser

→

STEP 3

render

Deterministic MP4 output

Runs locally via CLI · requires Node.js 22+, FFmpeg and npx · plugs into Claude Code, Cursor, Gemini CLI and Codex.

What developers like

Graphics, captions and transitions from agent-written HTML
Enterprise-grade, smooth GSAP-driven animation
Lighter than Remotion — no virtual DOM overhead
Hybrid no-code + code-level control

The limitations

Needs terminal use — not fully no-code
Some prefer external TTS over built-in voice cloning
Render stability can require extra effort
Fine-tuning complex motion takes work

Use cases

Product launch videos · social clips · data visualizations · website demos · turning PDFs into video — with early adopters including projects such as tldraw and TanStack.

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