ACTx486 research demo turns podcast videos into conversational interactive media
Karina Nguyen (ex-OpenAI, now at Anthropic) released ACTx486, a research demo built by Jakub Zegzulka: it turns an existing podcast video (an Elon Musk appearance on the Joe Rogan podcast) into an interactive system that listens, responds and adapts, letting users speak to the video and ask anything. It is framed as an early exploration of a new interactive medium, with no product commitments.
Confirmed
- The demo seamlessly blends real footage with generated synthetic faces, voices and speech
- Users can click the video to ask questions, interrupt, follow up, switch languages, and even move the scene into generated environments such as "life on Mars"
- The system can generate charts in real time during conversation and push them to the user's phone
- Karina Nguyen positions it as a research prototype of a new interactive medium, arguing that interactive media should not start from a blank chat box—which pushes the burden of "where to start" onto the user; existing content provides narrative, pacing and context, while users shape the experience through visual dialogue
- Karina said the team's internal reaction was enthusiastic and related work is converging into shape
Why it matters
- It explores turning static video into a two-way interactive medium rather than one-way viewing, offering a possible template for a new form of AI interaction product
- Several reposters argued this "from scrolling to interacting" form could surpass streaming, some predicting conversations with YouTube videos within a year; others joked that big companies spent hundreds of millions without matching this effect—these are personal opinions, not official claims
2026-09-24 ~ 2026-09-25 · 16 related posts
Primary sources
- [source] ACTx486 demo lets you talk to any video and get real-time responses — karinanguyen · 2026-09-24
- [source] ACTx486 turns any video into an interactive conversation, with live diagrams — karinanguyen · 2026-09-24
- [source] ACTx486 turns real podcast video into interactive synthetic conversation — karinanguyen · 2026-09-24
- ACTx486 Demo Turns Podcasts Into Interactive Agents You Can Talk To — karinanguyen · 2026-09-24
- New AI makes any video interactive: chat with people, change scenery on the fly — mark_k · 2026-09-24
- Ex-OpenAI duo launch ACTx486, turning any video into an interactive medium you can talk to — jakubzegzulka · 2026-09-24
- Karina's lab demos ACTx486: turn any podcast video into an interactive conversation — jakubzegzulka · 2026-09-24
- ACTx486 research demo turns any podcast video into an interactive, talkable medium — minchoi · 2026-09-25
8 near-duplicate retellings: demi_guo_ · karinanguyen · karinanguyen · karinanguyen · karinanguyen · karinanguyen · floguo · floguo