The Startup Ideas Podcast
The Startup Ideas Podcast

You're using GPT-6 Astra WRONG

September 10, 2026

AI Summary

5 min read

OpenAI’s GPT-6 Astra is the company’s most expensive model, priced on par with Anthropic’s Fable, but it is also unusually efficient—it completes tasks in fewer steps. For anyone with a Codex subscription, the cost is heavily subsidized. The hosts, Greg and Ross Mike, argue that most people are using this model far below its potential. The “saddest thing you can do with GPT-6 Astra,” Ross says, “is generate landing pages.” Instead, the episode is a practical walkthrough of how to use Astra for serious productivity gains, security audits, and—most strikingly—hardware prototyping. The core message: intelligence has gone up, but bravery has not.

Nine high-leverage prompts for founders and operators

Ross shares a list of nine Astra prompts he has been testing, each designed to replace a costly human workflow or unlock a new capability. The list includes:

Continue reading the full summary in the app — free to try.

Read Full Summary →

Free • No credit card required

What you'll learn

  • 1 (00:52) **Intro & Episode Mission** - Ross Mike joins to explain how to build real businesses with GPT-6 Astra, not just play with 3D demos.
  • 2 (01:53) **Why Use Astra: Performance & Security** - Ross shares two immediate, high-value actions for existing apps.
  • 3 (03:14) **UI Design with Reference Images** - How to get better visual results by providing a reference image.
  • 4 (03:47) **Computer Use & Browser Automation** - Astra's ability to operate your local machine and browse the web is a core strength.
  • 5 (04:26) **Prompt #1-3: Bill Negotiator, Service-to-Software, & Arbitrage** - Three concrete prompts for saving money, building products, and making cash.
  • 6 (06:57) **Prompt #4-6: Operator Dashboard, Agent Audit, & Browser Operator** - Founders can use these to run their company more efficiently.
  • 7 (09:28) **Prompt #7-9: QA Team, Competitor Spy, & Viral Lead Gen** - Prompts for product improvement and growth.

+ Full timestamped outline available in the app

Guests on this episode

Show Notes

I talk with Ras Mic about GPT-6 Astra. We skip the game demos and the 3D toys, and we focus on use cases to earn money or improve products. I share 9 Astra prompts that I posted publicly, and Greg Brockman reposted. Ras then shows his hardware project: he moved from a speaker idea to a parts list, a Blender layout, and merged code in about 30 minutes. The takeaway is simple: use this model for the ideas that felt too large for you last year.

Timestamps

00:00 – Intro

01:53 – Astra Overview

04:14 – 9 Astra Prompts

11:48 – Jarvis Speaker Idea

16:21 – Think Bigger with Astra

18:29 – Vibe Coding to Vibe Manufacturing

21:16 – Closing Thoughts

Key Points

  • Astra costs more per task, and it uses fewer steps, so the value per dollar stays high.
  • A performance audit moved one of Ras’s apps from 800 ms to 20–30 ms.
  • A security audit on his live payments app found real risks in production.
  • Ras went from a speaker idea to a $561 parts order and a merged pull request in about 30 minutes.
  • Ras’s point: intelligence keeps climbing, and bravery stays flat. Ask for bigger things.
  • The shift that vibe coding brought to software now reaches physical products.

The #1 tool to find startup ideas/trends - https://www.ideabrowser.com

LCA helps Fortune 500s and fast-growing startups build their future - from Warner Music to Fortnite to Dropbox. We turn 'what if' into reality with AI, apps, and next-gen products https://latecheckout.agency/

FIND ME ON SOCIAL

X/Twitter: https://twitter.com/gregisenberg

Instagram: https://instagram.com/gregisenberg/

LinkedIn: https://www.linkedin.com/in/gisenberg/

FIND MIC ON SOCIAL

X/Twitter:  The Startup Ideas Podcast