
"The Cognitive Revolution" | AI Builders, Researchers, and Live Player Analysis Automating Software Engineering: Genie Tops SWE-Bench, w/ Alistair Pullen, from Latent.Space podcast
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Oct 2, 2024 Alistair Pullen, Co-founder of Cosine, shares his journey from university to tech entrepreneur while developing AI tools like Genie. He discusses how Cosine achieves remarkable results on the SWE-bench benchmark through innovative automation techniques. The conversation dives into the pivotal role of generative AI in enhancing coding efficiency, challenges developers face, and the importance of historical customer data. Alistair emphasizes the need for adaptability in the ever-evolving landscape of software engineering.
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From Mobile Devs to Startup Founders
- Alistair Pullen and his co-founder, Sam, began their journey as mobile developers, building small projects during university.
- This experience led them to work at Fancy, a grocery delivery startup, which was later acquired by GoPuff.
Discovering GPT-3 and Codex
- After leaving GoPuff, they explored GPT-3, initially experimenting with simple prompts in the playground.
- Their interest grew when they discovered the Codex model and its code-writing capabilities.
Building a Flimsy App Generator
- Inspired by Codex, they built a flimsy system to generate mobile apps from scratch using chained prompts.
- This early experiment, while imperfect, demonstrated the potential of AI-driven development and led to their acceptance into YC.

