Claude Sonnet 5

897 marinesebastian 2026-06-30 18:06:12 UTC anthropic.com Llama Share 503

Claude Sonnet 5 is a more agentic AI model that can make plans, use tools, and run autonomously at a lower price than its predecessor. It's available across all plans and offers a safer and more efficient option for developers, with a lower rate of undesirable behaviors and improved performance on tasks like coding and knowledge work.

Claude Code is steganographically marking requests

1446 kirushik 2026-06-30 16:06:12 UTC thereallo.dev Llama Share 410

Developers give coding agents excessive access for productivity, but this also raises security concerns. A tool like Claude Code hides classification signals in system prompts, making it harder to trust its claims of transparency.

Google copybara: moving code between repositories

57 reconnecting 2026-07-01 00:06:12 UTC github.com/google Llama Share 8

Copybara is a tool used internally at Google to transform and move code between repositories, allowing for syncing of confidential and public repositories. It is stateless and supports Git repositories, with experimental support for Mercurial.

Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5

261 Pragmata 2026-07-01 00:06:12 UTC twitter.com/anthropicai Full Share 99

We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. We'll begin restoring access tomorrow, and will share an update soon. We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.

Forestiere Underground Gardens

13 onemoresoop 2026-07-01 01:24:12 UTC en.wikipedia.org Llama Share 1

Baldassare Forestiere built the Forestiere Underground Gardens in Fresno, California over 40 years using hand tools and mules. The gardens feature 65 rooms, skylights, and a variety of plants and trees protected from frost.

From brain waves to words: a new path to communication without surgery

112 alok-g 2026-06-30 22:06:12 UTC ai.meta.com Full Share 60

Sorry, something went wrong. We're working on getting this fixed as soon as we can.

Claude Science

375 lebovic 2026-06-30 18:06:12 UTC claude.com Llama Share 123

Claude Science is a public beta app that integrates AI with scientific computing, allowing users to run full analyses on their own infrastructure. It connects to 60+ scientific databases and domain-specific open models, and produces reproducible results with full provenance.

Nano Banana 2 Lite

312 minimaxir 2026-06-30 17:06:12 UTC deepmind.google Llama Share 123

Nano Banana 2 Lite generates and edits images faster and more efficiently, ideal for designers and creators. It provides high-quality images quickly, reducing waiting time and increasing creative flow.

Deriving the SVD (Single Value Decomposition) from scratch

11 pcael 2026-07-01 01:06:12 UTC stillthinking.net GoogleT5 Share 0

A linear algebra concept called singular value decomposition (svd) was new to me. it ranks the content by importance, and importance is information, says mathematician dr. rafael sahaguni jirgadiyasuddin ibn taylor, author of'singular values in information theory' he says the concept of singular

Leanstral 1.5

104 vetronauta 2026-06-30 21:06:12 UTC docs.mistral.ai Full Share 19

An updated Lean 4 formal proof engineering model optimised for automated theorem proving and autoformalization. 119B total parameters, 6.5B active.

Hatari – Online Atari ST/STE/TT/Falcon Emulator

35 gregsadetsky 2026-06-30 23:06:12 UTC hatari.frama.io Full Share 3

Hatari - the Atari ST/STE/TT/Falcon emulatorResize canvas Lock/hide mouse pointer

How does a pull-back car work? Illustrated teardown

109 Muhammad523 2026-06-30 20:06:12 UTC mechanical-pencil.com Llama Share 26

A toy car's wind-up mechanism uses a Spiral Spring and gears to store and release energy, allowing it to shoot forward at high speeds. The gear system provides a mechanical advantage, making it easier for kids to wind up the spring with modest force.

Scaling Laws, Carefully

16 tehnub 2026-06-30 23:06:12 UTC lilianweng.github.io GoogleT5 Share 8

Training loss $l$ decreases predictably as we scale up model size $n$, dataset $d$ and compute $c$. train loss and test loss are positively correlated, and more model parameters can induce a finer partition of the data manifold, argues chinchilla. he says this is because the unique high-quality data is not infinite and we likely have to repeat data during training. more data repetition leads ...

I ported Kubernetes to the browser

169 peterdemin 2026-06-30 21:06:12 UTC ngrok.com Llama Share 60

Sam Rose created Webernetes, a browser-based Kubernetes cluster, using LLMs to port 100,000 lines of code from Kubernetes. He reviewed and tested the code to ensure its correctness, and now invites others to use and contribute to the project.

Ante: A new way to blend borrow checking and reference counting

50 g0xA52A2A 2026-06-30 22:06:12 UTC verdagon.dev Llama Share 14

Ante is a work-in-progress language that aims to blend reference counting and borrow checking without run-time crashes. It achieves this through its concept of shape-stability and local uniqueness rules.

TabFM: A zero-shot foundation model for tabular data

41 brandonb 2026-06-30 23:06:12 UTC research.google Llama Share 6

TabFM is a foundation model for tabular data classification and regression that uses in-context learning to eliminate manual model training and hyperparameter tuning. It achieves high-quality predictions in a single forward pass, outperforming traditional supervised algorithms.

CERN bids farewell to the LHC and enters Long Shutdown 3

122 HelloUsername 2026-06-30 18:06:12 UTC home.cern Llama Share 32

The Large Hadron Collider has completed its final physics run and is undergoing a major maintenance and upgrade program, Long Shutdown 3, to prepare for the High-Luminosity LHC. The upgrade will increase the collider's luminosity by a factor of up to ten, enabling precision studies and potentially uncovering new phenomena.

I built a mmWave material classification radar (2025)

146 GL26 2026-06-30 18:06:12 UTC gauthier-lechevalier.com Llama Share 39

The user built a radar that can classify materials, specifically targeting asbestos detection, using a combination of material sciences, wave physics, and neural networks. Due to a lack of funding, the project was stopped after achieving a proof of concept, but the user gained valuable experience in embedded firmware programming, product design, and hardware startup development.

Tokyo has only two barley tea makers, we visited one to see how mugicha is made

77 zdw 2026-06-30 20:06:12 UTC soranews24.com Llama Share 12

Barley tea, or mugicha, is a Japanese drink made from roasted barley grains, not tea leaves. It's brewed from twice-roasted barley grains, sourced from domestic growers, and packaged in tea bags for a refreshing summer drink.

Stroustrup's Rule (2024)

59 bmacho 2026-06-30 21:06:12 UTC buttondown.com Llama Share 9

Logic for Programmers is on sale until Jan 2nd with 40% off. Bjarne Stroustrup's Rule states that beginners need explicit syntax, while experts prefer terse notation.

Building a custom octocopter from scratch with no prior hardware experience

333 noleary 2026-06-30 09:06:12 UTC karolina.mgdubiel.com Llama Share 69

Chris von Csefalvay plans to train a drone to fly with reinforcement learning, focusing on 6 failure classes and simulating motor lag and loop latency. He's using PPO with parallel environments and an asymmetric actor-critic approach to prepare the drone for real-world crashes.

Long Island's decommissioned nuclear power plant

75 mkmk 2026-06-30 20:06:12 UTC nickcarr.com Llama Share 11

The Shoreham Nuclear Power Plant, closed since 1994, is a unique filming location with a massive reactor control room and various industrial spaces. The plant features a 7-foot thick outer containment wall and a primary containment area with a reactor and fuel rod assembly.

Hengefinder

22 bookofjoe 2026-06-30 23:06:12 UTC hengefinder.com Llama Share 10

Hengefinder is an app that finds perfect sun or moon alignments with city streets and buildings worldwide. It uses astronomical calculations and road data to deliver instant results for sunrise, sunset, moonrise, and moonset.

Knoppix

259 hoangvmpc 2026-06-30 13:06:12 UTC knopper.net Llama Share 105

KNOPPIX is a bootable Linux system on CD, DVD, or USB with automatic hardware detection and support for various devices. It can be used as a productive desktop system, educational tool, or rescue system without installing anything on a hard disk.

Show HN: My 13-year-old built an ant colony tracker

40 abelgvidal 2026-06-30 20:06:12 UTC formicarium.es Llama Share 31

An ant colony management system tracks worker history, statistics, and care. It displays colony status, worker count, and data on a main panel with detailed charts and logs on each colony's page.

Reading the internals of Postgres: Database cluster, databases, and tables

54 buraksen 2026-06-30 18:06:12 UTC buraksen.dev Llama Share 1

The user is studying Postgres Internals and has been documenting their notes on database clusters, database objects, system catalogs, and storage layouts. They have explored how Postgres stores data in heap tables, uses TOAST tables for oversized values, and accesses data through line pointers and tuple headers.

Have you restarted your computer this week?

117 surprisetalk 2026-06-30 15:06:12 UTC taonaw.com Llama Share 221

The user enjoys manually restarting their Mac on Saturdays, closing all windows and ignoring unsaved work warnings, for a clean desktop environment. This process allows them to disconnect from work and resolve potential computer issues.

Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1852)

170 lstodd 2026-06-30 13:06:12 UTC gutenberg.org Llama Share 54

Charles Mackay's 1841 book "Memoirs of Extraordinary Popular Delusions" studies crowd psychology through historical examples of financial bubbles and mass hysteria. It remains influential in understanding economic speculation and predicting market crashes.

Waveloop: What Fable left me

101 personjerry 2026-06-30 19:06:12 UTC neynt.ca Llama Share 39

The user created a music visualizer called Waveloop that reveals the harmonic and melodic structure of music, using a chromatic circle and spiral stacked histogram to show pitch class presence. The user analyzed the code behind Waveloop, noting its technical and literary writing style, and its ability to detect ukulele chords in real-time using a live mic mode.

I built a 10 inch mini rack from aluminium extrusions

73 louwrentius 2026-06-30 16:06:12 UTC louwrentius.com Llama Share 32

The user built a 10-inch mini rack from aluminium extrusions to tidy up their desk and house six 1L PCs for a virtualization project. They encountered some challenges, such as expensive shelves and power distribution units, but overall they are happy with the build and its improved cable management.