{"slug": "computer-and-browser-use-in-codex-5-real-examples", "title": "Computer and browser use in Codex (5 real examples)", "summary": "Claire Vo, product leader and creator of ChatPRD, demonstrates five real-world uses of browser and computer use via the Codex ChatGPT desktop app, including QA testing that uncovered 11 issues and one high-severity blocker, persona testing, LinkedIn inbox management, AI personal shopping, and rapid-fire tasks like form filling and iPhone mirroring. Vo emphasizes that under-prompting frontier models yields better results than detailed step-by-step instructions.", "body_md": "Today I’m walking you through one of my absolute favorite AI features right now: browser and computer use via Codex (the ChatGPT desktop app). I use this every single day, personally and professionally, and I wanted to share the specific workflows I’ve built, the moments that surprised me, and the mental model that makes it actually click.\n\n**Listen or watch on YouTube, Spotify, or Apple Podcasts**\n\n### What you’ll learn:\n\nHow browser use and computer use work, and why the Codex desktop app plus Chrome extension is the combo I rely on\n\nHow I use Codex to QA my onboarding flow, including exhaustive mobile testing I would never do manually\n\nWhy under-prompting frontier models gets better results than detailed step-by-step instructions\n\nHow my husband EJ Lawless’s persona-impersonation trick surfaces friction points I can’t see as the builder\n\nHow I use browser use to get through my LinkedIn inbox without touching it myself\n\nHow I had Codex shop Free People’s sale and add 10 medium-size items to my cart (breastfeeding-friendly and Hawaii-ready)\n\nHow computer use can control iPhone mirroring so your Mac can technically operate your phone\n\nThree more computer-use shortcuts: filling annoying forms, creating Google Sheets mid-workflow, and managing a router\n\n### Brought to you by:\n\n** Runway**—The creative AI platform for images, video, and more\n\n** Hyperagent**—Deploy fleets of agents that handle real work\n\n### In this episode, we cover:\n\n([00:00](https://www.youtube.com/watch?v=lk63Sl-LRKE)) Intro\n\n([01:46](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=106s)) What browser use and computer use actually are\n\n([03:08](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=188s)) Why I use Codex specifically and how the desktop app plus Chrome extension works\n\n([04:15](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=255s)) Use case 1: QA testing my onboarding flow\n\n([10:41](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=641s)) Results: 11 issues, one high-severity blocker, one Google Sheet with screenshots\n\n([12:10](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=730s)) Use case 2: persona testing\n\n([18:20](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=1100s)) Use case 3: LinkedIn inbox, hands-free\n\n([20:37](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=1237s)) Use case 4: AI personal shopper\n\n([23:47](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=1427s)) Rapid-fire uses: forms, iPhone mirroring, router access from out of state, Google Docs\n\n([26:50](https://www.youtube.com/watch?v=lk63Sl-LRKE&t=1610s)) Wrap-up\n\n### Tools referenced:\n\n• Codex (ChatGPT desktop app): [https://openai.com/codex](https://openai.com/codex)\n\n• Claude desktop app: [https://claude.ai/download](https://claude.ai/download)\n\n• Monologue (voice dictation for AI): [https://monologue.app](https://monologue.app)\n\n• iPhone mirroring (Apple): [https://support.apple.com/en-us/111775](https://support.apple.com/en-us/111775)\n\n• Google Sheets: [https://sheets.google.com](https://sheets.google.com)\n\n### Other reference:\n\n• Jesse Genet episode (How I AI): [https://www.lennysnewsletter.com/p/5-openclaw-agents-run-my-home-finances?utm_source=publication-search](https://www.lennysnewsletter.com/p/5-openclaw-agents-run-my-home-finances?utm_source=publication-search)\n\n### Where to find Claire Vo:\n\nChatPRD: [https://www.chatprd.ai/](https://www.chatprd.ai/)\n\nWebsite: [https://clairevo.com/](https://clairevo.com/)\n\nLinkedIn: [https://www.linkedin.com/in/clairevo/](https://www.linkedin.com/in/clairevo/)\n\nProduction and marketing by [https://penname.co/](https://penname.co/). For inquiries about sponsoring the podcast, email [[email protected]](/cdn-cgi/l/email-protection).", "url": "https://wpnews.pro/news/computer-and-browser-use-in-codex-5-real-examples", "canonical_source": "https://www.lennysnewsletter.com/p/computer-and-browser-use-in-codex", "published_at": "2026-07-22 12:03:38+00:00", "updated_at": "2026-07-22 12:22:43.416212+00:00", "lang": "en", "topics": ["ai-tools", "ai-agents", "ai-products"], "entities": ["Codex", "ChatGPT", "OpenAI", "Claire Vo", "EJ Lawless", "Runway", "Hyperagent", "Google Sheets"], "alternates": {"html": "https://wpnews.pro/news/computer-and-browser-use-in-codex-5-real-examples", "markdown": "https://wpnews.pro/news/computer-and-browser-use-in-codex-5-real-examples.md", "text": "https://wpnews.pro/news/computer-and-browser-use-in-codex-5-real-examples.txt", "jsonld": "https://wpnews.pro/news/computer-and-browser-use-in-codex-5-real-examples.jsonld"}}