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How this OpenAI engineer uses Codex + ChatGPT Work to automate everything

Nick Baumann is on the Developer Experience team at OpenAI, where he spends his days building with, testing, and communicating the capabilities of ChatGPT Codex and ChatGPT Work. In this episode, Nick walks me through several features that have launched or evolved recently: the new voice interface with its screen-reading orb, the Heartbeats automation system in ChatGPT Work on mobile, the live ChatGPT Sites deployment feature, and his personal use case for AI-assisted UGC video editing. *What you’ll learn:* 1. How two-person voice chat works 2. How Heartbeats work 3. How to build and deploy a live website with ChatGPT Sites 4. How to delegate a flight search, hotel booking, and expense report to Codex in a single voice conversation without opening a single app manually 5. Why ChatGPT Work on mobile is the most underutilized AI workflow for people already using the ChatGPT app 6. How to use a custom UGC Video plugin to feed 50 raw clips into ChatGPT, let it pull transcripts, pick the best takes, and assemble a finished vertical video overnight *Brought to you by:* Bolt.new—Turn your idea into a real product: https://bolt.new/partner/howiai Hyperagent—Deploy fleets of agents that handle real work: https://www.hyperagent.com/howiai *In this episode, we cover:* (00:00) Introduction to Nick Baumann (02:56) What’s new in Codex (05:40) ChatGPT Work and Heartbeats (06:40) Live Codex voice demo (13:25) Latency vs. intelligence (14:36) Quick recap (15:04) Voice on mobile and the ChatGPT Sites workflow (21:24) Live UGC video demo (32:30) How I AI website results (34:04) Lightning round and final thoughts *Blog and detailed workflow walkthroughs from this episode:* Nick Baumann’s 3 Advanced ChatGPT Workflows: https://www.chatprd.ai/how-i-ai/nick-baumanns-3-advanced-chatgpt-workflows ↳ Use ChatGPT Voice as a Personal Assistant for Logistics and Travel: https://www.chatprd.ai/how-i-ai/workflows/use-chatgpt-voice-as-a-personal-assistant-for-logistics-and-travel ↳ Build and Deploy a Live Website with a Single ChatGPT Prompt: https://www.chatprd.ai/how-i-ai/workflows/build-and-deploy-a-live-website-with-a-single-chatgpt-prompt *Tools referenced:* • ChatGPT Codex: https://chatgpt.com/codex • ChatGPT Sites: https://chatgpt.site *Where to find Nick Baumann:* LinkedIn: linkedin.com/in/nick--baumann *Where to find Claire Vo:* ChatPRD: https://www.chatprd.ai/ Website: https://clairevo.com/ LinkedIn: https://www.linkedin.com/in/clairevo/ X: https://x.com/clairevo _Production and marketing by https://penname.co/._ _For inquiries about sponsoring the podcast, email jordan@penname.co._

Nick BaumannguestClaire Vohost
Aug 3, 202641mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

OpenAI engineer demos voice-driven Codex agents automating work and content

  1. Codex Voice acts as a screen-aware assistant that can spin up and coordinate multiple parallel threads to complete real tasks like booking travel and preparing expense reports without immediate supervision.
  2. ChatGPT Work on mobile extends agentic workflows with connectors and proactive “Heartbeats” that monitor sources like email, calendar, and finances and notify you when something needs attention.
  3. The conversation highlights under-discovered capabilities such as thread forking, cross-thread messaging, AppShots (context-rich screenshots), and using an existing browser session for authenticated flows.
  4. They build and deploy a ChatGPT Site that can be shared publicly or restricted by email, positioning “Sites” as a lightweight way to publish databases/files-backed web artifacts.
  5. A repeatable creator workflow emerges: dump many raw clips into Codex, use a custom plugin to enforce brand/safe-area rules, auto-select best takes via transcripts, and even perform moving redactions/blur checks.

IDEAS WORTH REMEMBERING

5 ideas

Treat Voice as an orchestration layer, not just dictation.

In the demo, Voice isn’t merely transcribing—it creates new threads, updates running tasks, and uses screen context to delegate multiple workflows (travel + expensing) concurrently.

Use threads to manage context and parallelize work intentionally.

Codex can start/fork threads and have them work in the background, which reduces context overload in one chat and mirrors how a human assistant would split responsibilities.

Prefer ‘use my existing browser session’ for real-world web automation.

When tasks require logged-in access (e.g., Navan, Gmail), instructing the agent to use the existing Chrome session avoids re-auth friction and keeps the workflow practical.

Heartbeats turn ChatGPT Work into an always-on monitor for life admin.

By connecting email/calendar/finance tools and running recurring checks, you get proactive notifications (packages, suspicious charges) instead of needing to remember to look.

AppShots are a fast path to ‘agent understands what I’m seeing.’

A context-rich screenshot of the active window lets the system immediately reason about what’s on-screen (like a Slack itinerary) and act without manual copy/paste.

WORDS WORTH SAVING

5 quotes

I tell it one thing, and then it figures out all these other things on its own.

Nick Baumann

I think with the advent of code agents and like the code agent harness in particular, now this AI is going out and like reading files and creating files and like running commands, and it... This is crazy.

Nick Baumann

What I like about Voice is I do think sometimes people with AI really struggle still with, like, blank chat window syndrome.

Claire Vo

If anybody has been lucky enough to have an assistant, like, this is how it gets, it gets done, and it is just, like, such a nice delegation experience to be like, "Hey, can you take care of this? Hey, can you fix this? Tell me what's going on."

Claire Vo

There's gonna be delay. Um, a- and the more we shrink that, we can kind of drop those assumptions and new products will, you know, will emerge.

Nick Baumann

Codex Voice hotkey and screen contextMulti-thread orchestration and task delegationChatGPT Work mobile, connectors, and HeartbeatsAppShots and using existing Chrome sessionsLatency vs. intelligence tradeoff in voice UXChatGPT Sites: deploy, permissions, and basic stackUGC/short-form video assembly, transcripts, and auto-redactionCustom plugins/skills for consistent editing outputs

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