10.6.26 | Web Search API, Beam open-weight model, Opus 5.5 agents find room-temperature magnetic semiconductors

This is a recap of the top 10 posts on Hacker News on Oct 6, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:20) - Web Search API

(01:25) - Beam: Reflection's 501B open-weight model

(02:36) - Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates

(03:50) - Apple and a hacker's future

(05:18) - Example.com just launched the biggest redesign in decades

(06:49) - The lamps in my house

(07:52) - Find the flattest route between any two points in SF

(08:53) - Competitive Programmer's Handbook (2018) [pdf]

(10:14) - Dust: Pretraining Transformers Without Backpropagation

(11:41) - Why Common Lisp is now the best programming language

(13:07) - Outro

Web Search API https://developers.cloudflare.com/changelog/post/2026-10-02-introducing-web-search-api/ https://news.ycombinator.com/item?id=49963171Beam: Reflection's 501B open-weight model https://reflection.ai/blog/introducing-beam https://news.ycombinator.com/item?id=49969183 Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates https://www.vals.ai/blogs/room-temperature-magnetic-semiconductors https://news.ycombinator.com/item?id=49970667 Apple and a hacker's future https://stratechery.com/2026/apple-and-a-hackers-future/ https://news.ycombinator.com/item?id=49962857 Example.com just launched the biggest redesign in decades https://www.debugbear.com/blog/example-dot-com-redesign-history https://news.ycombinator.com/item?id=49971921 The lamps in my house https://arslan.io/2026/10/05/the-lamps-in-my-house/ https://news.ycombinator.com/item?id=49965152 Find the flattest route between any two points in SF https://flattensf.com/ https://news.ycombinator.com/item?id=49971230 Competitive Programmer's Handbook (2018) [pdf] https://cses.fi/book/book.pdf https://news.ycombinator.com/item?id=49944049 Dust: Pretraining Transformers Without Backpropagation https://qlabs.sh/research/dust https://news.ycombinator.com/item?id=49970871 Why Common Lisp is now the best programming language https://www.vivienhenz.com/common-lisp https://news.ycombinator.com/item?id=49973598