As of: 2026-10-14 02:13 CEST. Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/ Canonical page: https://postcutoff.com/videos/demo/top/ # Demo videos, most viewed 19 videos of 1,216 in the log. Page 1 of 1, most viewed first: places 1 to 19. The ranking uses each video’s total views: its own upload plus every copy we track on other platforms. X counts impressions, not plays, so a video posted on X ranks higher than its plays alone would put it, and numbers across platforms aren’t comparable. Each count carries the date we checked it. Newest first: https://postcutoff.com/videos/demo/ 1. 2026-10-07: [Skate 3 is now fully playable in the browser](https://postcutoff.com/v/chasm-skate-3-browser-port-x/), chasm (@chasmmmmmmmmmmm), X, demo, 3,886,436 views as of 13 October 2026. 2. 2026-09-03: [Introducing GPT-6 Astra for developers](https://postcutoff.com/v/gpt-6-astra-for-developers/), OpenAI, YouTube, demo, 1,240,503 views as of 9 October 2026. 3. 2026-09-24: [Meta VR Glasses - Full On Stage Live Demonstration](https://postcutoff.com/v/tyriel-wood-meta-vr-glasses-on-stage-demo/), Tyriel Wood - VR Tech, YouTube, demo, 1,053,241 views as of 9 October 2026. 4. 2026-09-16: [I Ran GPT-6 for 3 Days Non-Stop and It Created This…](https://postcutoff.com/v/stefan-3d-ai-gpt-6-three-days-nonstop-games/), Stefan 3D AI, YouTube, demo, 791,205 views as of 12 October 2026. 5. 2026-10-05: [Claude Opus 5.5 Built a 3D Warehouse App That Looks Like a Game](https://postcutoff.com/v/o0o0o0o-opus-5-5-waretrack-3d-warehouse-app/), o0o0o0o, YouTube, demo, 535,636 views as of 12 October 2026. 6. 2026-05-08: [Helix 02 Bedroom Tidy](https://postcutoff.com/v/figure-helix-02-bedroom-tidy/), Figure, YouTube, demo, 483,231 views as of 9 October 2026. 7. 2026-09-22: [Claude Opus 5.5 builds daydreams that hold together](https://postcutoff.com/v/claude-opus-5-5-brick-daydreams/), Claude, YouTube, demo, 470,110 views as of 9 October 2026. 8. 2026-09-22: [GPS, explained by Claude Opus 5.5](https://postcutoff.com/v/claude-opus-5-5-gps-explained/), Claude, YouTube, demo, 433,903 views as of 9 October 2026. 9. 2026-09-29: [I Gave GPT-6 Astra Control of FreeCAD (It Designs Like an Engineer)](https://postcutoff.com/v/make-form-gpt-6-astra-freecad/), Make Form, YouTube, demo, 360,744 views as of 13 October 2026. 10. 2026-09-01: [Claude Fable 5.1 runs the forecast overnight](https://postcutoff.com/v/claude-fable-5-1-forecast-overnight/), Claude, YouTube, demo, 266,574 views as of 9 October 2026. 11. 2026-09-08: [Take the full tour of Muse, Meta's personal AI agent.](https://postcutoff.com/v/meta-muse-full-tour/), Muse, YouTube, demo, 239,796 views as of 9 October 2026. 12. 2026-09-22: [Claude Opus 5.5 turns graphite into gravity](https://postcutoff.com/v/claude-opus-5-5-graphite-into-gravity/), Claude, YouTube, demo, 196,581 views as of 9 October 2026. 13. 2026-10-04: [I Let Opus 5.5 Play City Skylines 2 and it's a GOD](https://postcutoff.com/v/future-tech-pilot-opus-5-5-plays-cities-skylines-2/), Future Tech Pilot, YouTube, demo, 150,610 views as of 13 October 2026. 14. 2026-09-22: [Claude Opus 5.5 rebuilds Earthrise in 3D, down to the second](https://postcutoff.com/v/claude-opus-5-5-earthrise-3d/), Claude, YouTube, demo, 123,668 views as of 9 October 2026. 15. 2026-09-01: [Claude Fable 5.1 builds the ops review in Slack](https://postcutoff.com/v/claude-fable-5-1-ops-review-slack/), Claude, YouTube, demo, 72,387 views as of 9 October 2026. 16. 2026-09-01: [Debugging across the whole stack with Claude Fable 5.1](https://postcutoff.com/v/claude-fable-5-1-debugging-whole-stack/), Claude, YouTube, demo, 59,871 views as of 9 October 2026. 17. 2026-09-01: [Claude designs proteins that bind in the lab](https://postcutoff.com/v/claude-designs-proteins-lab/), Claude, YouTube, demo, 54,302 views as of 9 October 2026. 18. 2025-11-17: [π*0.6: four hours of robotic box assembling](https://postcutoff.com/v/pi-star-0-6-box-assembly/), Physical Intelligence, YouTube, demo, 4,390 views as of 9 October 2026. 19. 2026-10-13: [Fish Audio Drama 3 in ComfyUI: Generate Multi-Character Dialogue Scenes](https://postcutoff.com/v/comfyui-fish-audio-drama-3-multi-character-dialogue/), ComfyUI, YouTube, demo, 120 views as of 13 October 2026.