The best of Hacker News - August 13, 2025

1.
Claude Sonnet 4 now supports 1M tokens of context

1007 points

2.
Show HN: Building a web search engine from scratch with 3B neural embeddings

414 points

3.
LLMs aren't world models

278 points

4.
Training language models to be warm and empathetic makes them less reliable

253 points

5.
Show HN: Omnara – Run Claude Code from anywhere

235 points

6.
Search all text in New York City

225 points

7.
Ashet Home Computer

222 points

8.
Multimodal WFH setup: flight SIM, EE lab, and music studio in 60sqft/5.5M²

211 points

9.
Blender is Native on Windows 11 on Arm

143 points

10.
WHY2025: How to become your own ISP [video]

137 points

11.
Journaling using Nix, Vim and coreutils

110 points

12.
A gentle introduction to anchor positioning

66 points

13.
Bezier-rs – algorithms for Bézier segments and shapes

60 points

14.
Conversations remotely detected from cell phone vibrations, researchers report

50 points

15.
F-Droid build servers can't build modern Android apps due to outdated CPUs

37 points

16.
Visualizing quaternions: An explorable video series (2018)

25 points

17.
A Comprehensive Survey of Self-Evolving AI Agents [pdf]

21 points

18.
Fennel libraries as single files (2023)

17 points

19.
1948: Catholic Church publishes final edition of “Index Librorum Prohibitorum”

11 points

20.
The Anti-Pattern Game

3 points

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