Overview

• Sebastian Siemiatkowski said on the Sourcery podcast that AI assistants like Cursor let him build working prototypes in about 20 minutes instead of waiting weeks.
• He said testing ideas himself now spares Klarna’s engineers from early‑stage concepts and leads to clearer handoffs to product teams.
• Klarna’s NYSE debut drew strong interest, with shares jumping on day one and Business Insider reporting that converted vested RSUs could be traded outside the typical lockup.
• Vibe coding is spreading in the C‑suite, with Google’s Sundar Pichai describing recent experiments using Cursor and Replit, and some employers listing AI code‑generation skills in job requirements.
• Developers caution that AI output still needs scrutiny, with Fortune citing a Fastly survey showing 95% of about 800 engineers spend extra time reviewing AI‑generated code; separate reports note Klarna’s AI handled millions of customer queries in 2024.