Teaser: Using Claude Opus 5.5 to Reformat a Livestream Video to Vertical

Melvin Vivas · X video post · 2026-09-26 · 0:52 · 623 views · Open on X

Topics: AI Dev Tools & Productivity, Industry Trends & Job Market · Level: beginner

Summary

Melvin Vivas says he asked Claude Opus 5.5 to turn his landscape livestream teaser into a vertical video, and claims that video editors are no longer needed. The 52-second clip is a montage of short soundbites from the livestream. It mentions running models locally without internet or a GPU, agent loops, running tasks in parallel, a model he trained on his own tweets, and 'inference engineering'. There is very little actual teaching. The post mostly shows an AI model doing a video-editing task and promotes the livestream.

Key points

• The creator says Claude Opus 5.5 produced a vertical (portrait) version of a landscape livestream teaser, which suggests AI models can take on simple video-editing work.
• Themes from the livestream: running AI locally ('you don't need internet', 'you don't even need to buy a GPU') and running tasks in parallel.
• 'Loops are really a way to go' points to agent loops as a way of working.
• The creator mentions loading a model he trained on his own tweets, an example of personal fine-tuning.
• He shows a website that looks like a Windows XP machine and jokes that you shouldn't let Codex design your UI.
• 'Inference engineering' is named as a field of work.
• The clip has no step-by-step instructions. It is a teaser, and the details are in the full livestream.

Resources mentioned

• Claude Opus 5.5 · tool · claude.ai · paid · open in a browser to verify · recommended by both Bashiri Smith & Melvin Vivas
  Anthropic's AI assistant, used throughout the guide to tailor resumes, add live roles to the tracker, match connections to target companies and find hiring managers.
  Also in: Generating a Repo Promo Video with a Claude Skill on Sonnet 5.5 vs Opus 5.5 (Melvin Vivas on X · notes), Comparing Coding Models on the Same Task in Devin iOS (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), AI Engineer Roadmap Overview: From ML Foundations to RAG, Agents & Ops (Bashiri Smith on Facebook · notes) and 53 more
• OpenAI Codex · tool · openai.com · paid
  OpenAI's coding agent. In the diagram it writes code, fixes review findings and drives the build loop. The creator also used it to make this video.
  Also in: An agent bot that installs and drives Codex on its own (Melvin Vivas on X · notes), Asking a Coder bot to install Codex (Melvin Vivas on X · notes), Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Codex Cloud Environments Must Be Saved & Published Before Use (Melvin Vivas on X · notes) and 240 more

Try this

• Try asking an AI model or coding agent to reformat a landscape video into a vertical one for short-form platforms.
• Watch the creator's full livestream for details on local models, agent loops and inference engineering.
• Use an AI agent to turn landscape livestream clips into vertical short-form teasers automatically.
• Train a small personal model on your own tweets and run it locally.
• Build a website styled like a Windows XP desktop.