9.23.26 | Claude Opus 5.5, GPT-6 Sol and Luna, OpenAI GPT–6 Astra decrypts Enigma message

This is a recap of the top 10 posts on Hacker News on Sep 23, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:19) - Claude Opus 5.5

(01:44) - GPT-6 Sol and Luna

(03:19) - OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005

(04:40) - Pentagon says overreliance on AI contributed to missile strike on Iran school

(05:50) - 'We hacked the FBI:' Hackers say they have data on all FBI employees

(06:48) - How did AMD Ryzen get 50% faster in two years?

(08:03) - Microsoft killed FoxPro in 2007. Anyway, here's FoxPro revived

(09:20) - OpenAI is well positioned to fast-follow Jev

(10:48) - Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max)

(12:07) - SAML: A fractal of bad design

(13:19) - Outro

Claude Opus 5.5 https://www.anthropic.com/claude-opus-5-5 https://news.ycombinator.com/item?id=49803892GPT-6 Sol and Luna https://openai.com/index/introducing-gpt-6-sol-and-luna/ https://news.ycombinator.com/item?id=49805509 OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005 https://www.cryptocellar.org/bgac/the-mvueh-break.html https://news.ycombinator.com/item?id=49801324 Pentagon says overreliance on AI contributed to missile strike on Iran school https://www.bloomberg.com/graphics/2026-iran-school-attack/ https://news.ycombinator.com/item?id=49806430 'We hacked the FBI:' Hackers say they have data on all FBI employees https://www.404media.co/we-hacked-the-fbi-hackers-say-they-have-data-on-all-fbi-employees/ https://news.ycombinator.com/item?id=49805278 How did AMD Ryzen get 50% faster in two years? https://lemire.me/blog/2026/09/18/how-did-amd-ryzen-get-50-faster-in-two-years/ https://news.ycombinator.com/item?id=49758709 Microsoft killed FoxPro in 2007. Anyway, here's FoxPro revived https://foxscript.org/ https://news.ycombinator.com/item?id=49808023 OpenAI is well positioned to fast-follow Jev https://arcturus-labs.com/blog/2026/09/21/will-openai-eat-jevs-lunch/ https://news.ycombinator.com/item?id=49802161 Claude Opus 5.5 Intelligence, Performance and Price Analysis (Max) https://artificialanalysis.ai/models/claude-opus-5-5 https://news.ycombinator.com/item?id=49804316 SAML: A fractal of bad design https://blog.trailofbits.com/2026/09/21/saml-a-fractal-of-bad-design/ https://news.ycombinator.com/item?id=49806335