The best Hacker News stories from All from the past day
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Since Chromium 148, Math.tanh is now fingerprintable to link underlying OS
Vint Cerf, “father of the Internet”, is retiring
I love LLMs, I hate hype
Prefer strict tables in SQLite
Nvidia, CoreWeave, and Nebius: Inside the Circular Financing of the GPU Boom
Old and new apps, via modern coding agents
What xAI's Grok build CLI sends to xAI: A wire-level analysis
Under federal rule, colleges must leave grads better off or lose financial aid
Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k
This started based off of a hunch. We usually use OpenCode, but were 'forced' to use Claude Code for a while due to issues with Meridian. In that time, we saw the usage meter rise much, much more quickly than when using OpenCode.<p>This was the initial anecdotal evidence, but we undertook this small study to collect empirical data:<p>We added logging between the agentic coding tool (Claude Code and OpenCode) and Anthropic's endpoint, and captured all requests (and the returned usage blocks).<p>With one caveat (toward the end of the post) we found unambiguously that Claude Code was far more inefficient in terms of its cache strategy and its harness token usage than OpenCode.
Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k
This started based off of a hunch. We usually use OpenCode, but were 'forced' to use Claude Code for a while due to issues with Meridian. In that time, we saw the usage meter rise much, much more quickly than when using OpenCode.<p>This was the initial anecdotal evidence, but we undertook this small study to collect empirical data:<p>We added logging between the agentic coding tool (Claude Code and OpenCode) and Anthropic's endpoint, and captured all requests (and the returned usage blocks).<p>With one caveat (toward the end of the post) we found unambiguously that Claude Code was far more inefficient in terms of its cache strategy and its harness token usage than OpenCode.
Einstein's relativity rules chemical bonds in heavy elements, new research shows
<a href="https://www.science.org/doi/10.1126/science.aei1285" rel="nofollow">https://www.science.org/doi/10.1126/science.aei1285</a>
An update on residential proxies and the scraper situation
Late Bronze Age Collapse
Good Tools Are Invisible
AI 2040: Plan A
New York City to ban deceptive subscription practices
<a href="https://www.nyc.gov/mayors-office/news/2026/07/mayor-mamdani-announces-landmark--click-to-cancel--consumer-prot" rel="nofollow">https://www.nyc.gov/mayors-office/news/2026/07/mayor-mamdani...</a>
SpaceX wants to launch 100k more Starlink satellites for 100x the bandwidth
GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf]
<a href="https://x.com/__eknight__/status/2075643450196971805" rel="nofollow">https://x.com/__eknight__/status/2075643450196971805</a>, <a href="https://xcancel.com/__eknight__/status/2075643450196971805" rel="nofollow">https://xcancel.com/__eknight__/status/2075643450196971805</a><p>Prompt: <a href="https://cdn.openai.com/pdf/04d1d1e4-bc75-476a-97cf-49055cd98d31/cdc_prompt.pdf" rel="nofollow">https://cdn.openai.com/pdf/04d1d1e4-bc75-476a-97cf-49055cd98...</a>
GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf]
<a href="https://x.com/__eknight__/status/2075643450196971805" rel="nofollow">https://x.com/__eknight__/status/2075643450196971805</a>, <a href="https://xcancel.com/__eknight__/status/2075643450196971805" rel="nofollow">https://xcancel.com/__eknight__/status/2075643450196971805</a><p>Prompt: <a href="https://cdn.openai.com/pdf/04d1d1e4-bc75-476a-97cf-49055cd98d31/cdc_prompt.pdf" rel="nofollow">https://cdn.openai.com/pdf/04d1d1e4-bc75-476a-97cf-49055cd98...</a>
QuadRF can spot drones and see WiFi through my wall