AI Prototyping - All Things Product Podcast with Teresa Torres & Petra Wille

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AI prototyping tools are mushrooming—Replit, V0, Bolt, WindSurf, and more—but do they actually help with discovery work? In this episode of All Things Product, Petra Wille and Teresa Torres discuss how AI-powered tools can supercharge assumption testing, where they still fall short, and what that means for product teams today.
From building chat interfaces with custom data to testing leadership self-assessment tools, both Petra and Teresa share their hands-on experiences—what worked, what was frustrating, and how these tools can fit into continuous discovery habits.
Whether you're a product manager, designer, or engineer wondering if these tools are a game-changer or just hype, this conversation breaks it down with real talk and real use cases.
What You’ll Learn:
- Why “free to build” doesn’t mean “no cost”
- How AI prototyping tools help with assumption testing
- Common pitfalls (and how to avoid them)
- Why engineering skills still matter in a no-code world
- The types of prototypes that are perfect for AI tools
- How these tools change team collaboration and speed
Key Takeaways:
- AI tools can help build usable prototypes in hours—not weeks.
- These tools are great for fast, interactive assumption tests.
- You still need engineering know-how to troubleshoot or guide LLMs effectively.
- Product teams benefit most when they build and test together.
- Even failed prototypes offer valuable learning.
Episode Quote:
“Even if the cost to build goes to zero, if you keep building the wrong thing, you're still wasting your life.” – Teresa Torres
Resources & Links:
- Follow Teresa Torres: https://ProductTalk.org
- Follow Petra Wille: https://Petra-Wille.com
Mentioned in this episode:
- Large language model (LLM)
- ChatGPT
- Claude (Anthropic API)
- Teresa’s Continuous Interviewing Course (where she introduced a custom chat interface app, allowing students to interact with a ChatGPT-style tool powered by her own prompts and proprietary data)
- Petra’s The PMwheel – a Compass for the Product Manager Development Journey
- Vibe coding
- Teresa’s Assumption Testing Course
- Jeff Patton’s drawing of the three people having different pictures in their head about one thing
- Replit
- V0.dev
- Bolt
- Lovable
- WindSurf
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