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Fascinating Hacker News comment from Tom Gally, a professional translator (Japanese to English) who uses LLMs as part of his workflow, which he describes in detail: news.ycombinator.com/item?id=428978… Wrote a bit more about this on my blog here: simonwillison.net/2025/Feb/2/wor…

Today we’re launching the Anthropic Economic Index, a new initiative aimed at understanding AI's impact on the economy over time. The Index’s first paper analyzes millions of anonymized Claude conversations to reveal how AI is being used today in tasks across the economy.

Today we introduce an AI co-scientist system, designed to go beyond deep research tools to aid scientists in generating novel hypotheses & research strategies. Learn more, including how to join the Trusted Tester Program, at goo.gle/417wJrA

AlphaMaze: Teaching a 1.5B LLM to think visually and solve ARC-AGI like puzzles! 🤯 Powered by DeepSeek R1 1.5B + GRPO All with Apache licensed checkpoints and dataset 🤗

FULL KEYNOTE -- me + Guy K at SXSW on why privacy is a fundamental guarantor of a gorgeous, good life (not an absence, not a vacuum, not abstract). And how AI threatens privacy. And why Signal is so special and why you should use & love & support it ❤️ youtube.com/watch?v=AyH7zo…

In our new paper on using AI solving real business problems at Procter and Gamble where we found AI helped individuals, even inexperienced ones, perform as well as teams of two, we gave participants a set of default prompts to work with. Here some are: oneusefulthing.org/p/the-cybernet…

Here's the voice-powered vibe coding demo I did as the finale to my talk at DeepLearning.AI AI Dev 25. It was super fun to do this demo, and it also shows off how realtime models can delegate to reasoning models when heavy lifting is needed. youtube.com/watch?v=fHz6s0…

Our safety research team at Google DeepMind made a free course on AGI safety. It's just 75 minutes, and it covers a super important area. Anyone interested can watch it👇

Want to learn the engineering details of building state-of-the-art Large Language Models (LLMs)? Not finding much info in OpenAI’s non-technical reports? Percy Liang and Tatsunori Hashimoto are here to help with CS336: Language Modeling from Scratch, now rolling out to YouTube.

Voice agent cost calculator (and a couple of common calculation mistakes) Here's a spreadsheet to calculate the per-minute cost of a voice agent. I cleaned this up to share because I've had the same surprising conversation a few times lately ... 🧵

If you're working with LLMs and struggling to get accurate results from structured or private data, this session is for you: zoom.us/webinar/regist…

Someone just reminded me of this lecture I gave in 2009 that described the evolution of Google Search from 1999 to 2009. People who are interested in how our search systems work might find this interesting. It touches on disk-based serving systems, in-memory indices,

Today we release DeepSeek-R1T-Chimera, an open weights model adding R1 reasoning to DeepSeek V3-0324 with a novel construction method. In benchmarks, it appears to be as smart as R1 but much faster, using 40% fewer output tokens. The Chimera is a child LLM, using V3s

Introducing Pirkle — a lightweight CLI tool for querying CSV and SQLite files using PRQL. PRQL (Pipelined Relational Query Language) is a modern, readable, and expressive alternative to SQL, compiling to SQL under the hood.

mitmproxy 12 is out! 🚀 It’s now possible to modify the prettified representation of binary protocols. Editing Protobufs is now as easy as editing YAML, no .proto schema needed. 🙌 mitmproxy.org/posts/releases…

Polars has gotten 4x faster than Polars! 🚀 In the last months, the team has worked incredibly hard on the new-streaming engine and the results pay off. It is incredibly fast, and beats the Polars in-memory engine by a factor of 4 on a 96vCPU machine.

The sweet sweet moment you find product market fit (wait for it)

How I used evals to systematically improve my LLM-powered food tracking app Taralli. duarteocarmo.com/blog/evals-are…

Cool blog on using simple tools from DSPy to improve a food-tracking app.

Gave a keynote at #TheWebConf2025 in Sydney! 🌏 Talked about advancing LLMs from retrieval to reasoning with: 🧠 STaRK: semi-structured QA benchmark 🔧 AvaTaR: tool-using LLM agents 🤝 CollabLLM: models that collaborate 📊 POPPER: auto hypothesis testing Slides: