# We Built Microsoft Teams in 23 Minutes (And You Can Use It) & GPT 5.4 Impressions - EP99.37

Page: https://stenobird.com/podcast/this-day-in-ai-podcast/we-built-microsoft-teams-in-23-minutes-and-you-can-use-it-gpt-5-4-impressions-ep99-37
Text version: https://stenobird.com/podcast/this-day-in-ai-podcast/we-built-microsoft-teams-in-23-minutes-and-you-can-use-it-gpt-5-4-impressions-ep99-37.md
Podcast: [This Day in AI Podcast](https://stenobird.com/podcast/this-day-in-ai-podcast)
Published: 2026-03-06T01:30:32+00:00
Episode link: https://share.transistor.fm/s/aedd8c17
Audio file: https://media.transistor.fm/aedd8c17/d5baaa87.mp3
Processing state: failed
JSON: https://stenobird.com/v1/public/podcasts/this-day-in-ai-podcast/episodes/we-built-microsoft-teams-in-23-minutes-and-you-can-use-it-gpt-5-4-impressions-ep99-37
Duration seconds: 4090

## Resource

Join us on the STILL RELEVANT tour: https://simulationtheory.ai/16c0d1db-a8d0-4ac9-bae3-d25074589a80 Join Simtheory: https://simtheory.ai 🚀 Try our AI-built apps: Macrosoft Teams: teams.simtheoryapp.com (working video chat with up to 150 people) Trallo: trallo.simtheoryapp.com (full Trello clone, unlimited boards, completely free) TDIA Discord: https://discord.gg/gTW4RkAJvn Spotify Songs: https://open.spotify.com/artist/28PU4ypB18QZTotml8tMDq?si=Zh4jgHIASI2ZvsXVfVcCoA So Chris, this week... we've been having way too much fun with the AI again. OpenAI just dropped GPT-5.4 and 5.4 Pro, and holy shit - we finally have a ball game. This might be the first OpenAI model that genuinely competes with Opus 4.6 for agentic work. But here's where it gets wild: we rebuilt Trello AND Microsoft Teams from scratch using single prompts. Not mockups. Fully deployed, working apps with authentication, video chat, the works. You can literally sign up and use them right now. Plus: We roast Gemini 3.1 (it's a disgrace for agentic workflows), break down the insane $30/$180 per million pricing on 5.4 Pro (who is this for??), and discuss why every $99/month SaaS tool might be about to die. Chris declares his programming skills "useless" and honestly... he might be right. We also demo our actual workflow - running 5 agent tabs simultaneously, delegating everything, and why we barely visit websites anymore. The AI workspace IS the operating system now. CHAPTERS: 0:00 - Intro & Housekeeping (We Screwed Up the Link) 1:26 - GPT-5.4 First Impressions & Specs 3:12 - Chris's Testing: 40 Minutes to Solve a Problem 4:51 - Knowledge Work Improvements (Catching Up to Anthropic) 6:38 - Computer Use vs Browser/Terminal Debate 8:07 - Why We Don't Need Computer Use Anymore 9:53 - Teaser: We Built Full…

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## Transcript

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