Show HN: Whiteboard (YC W26) – An open-source IDE for thoughtful software design

Whiteboard is an open-source desktop application designed as an IDE for thoughtful software design, facilitating collaboration between humans and agents in a shared workspace. It performs optimally with models such as GPT-6 Sol and Claude Opus 5.5, chosen for their balance of intelligence, cost, and speed. The project also references agents as "junior engineer savants."

This open-source IDE is notable for explicitly recommending specific, high-performance AI models like GPT-6 Sol and Claude Opus 5.5, unlike many others that offer more general compatibility.