Best of 2025

The blog posts Hacker News loved most in 2025. 553 posts.

AI & Machine Learning
358

Kagi Assistants

TL;DR Today we're releasing two research assistants: Quick Assistant and Research Assistant (previously named Ki during beta). Kagi's Research Assistant happened to top a popular benchmark (SimpleQA) when we ran it in August 2025. This was...

360

OpenAI Grove

Applications are now open for OpenAI Grove Cohort 2, a 5-week founder program designed for individuals at any stage, from pre-idea to product. Participants receive $50K in API credits, early access to AI tools, and hands-on mentorship from the OpenAI team.