I thought it was very notable that the recent Qwen 3 Coder announcement mentioned running 20,000 environments in Alibaba Cloud for RL: https://
qwenlm.github.io/blog/qwen3-cod
er/
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@simonw
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Qwen 3 Coder Uses 20,000 Cloud Environments for Reinforcement Learning
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Mistral Small 3.2 and SmolLM3 Fall Short of Expectations
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Even Mistral Small 3.2 and SmolLM3 haven't been as good as I would hope
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Best Local Models for Tool Use on macOS
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What's the best local model you've managed to run on macOS for tool use, and how did you run it? I've not had great results from those I've tried on Ollama – even for very basic things (single calls) they often seem to forget to call them or forget to answer based on the result
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Building Web UI for OSS Rebuild Data with Cloud Storage
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OSS Rebuild doesn't (yet) have a web UI… but it turns out their data is in a public Google cloud bucket, which means you can host your own web app in a separate cloud bucket and use fetch() to access their data! So I had Claude Code build and deploy a vibe-coded search UI
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Google Security OSS Rebuild Enhances PyPI NPM Crates Supply Chain
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I wrote up some notes on Google Security's new OSS Rebuild project, which increases supply chain security for popular packages on PyPI, NPM and Crates through offering independent build attestations
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Hugging Face Benchmark: Vision LLMs Long Video Input Performance
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Interesting new benchmark from Hugging Face testing how well vision LLMs can handle long video inputs (generally after they've been split into many thousands of images) – my notes here: https://
simonwillison.net/2025/Jul/23/ti
mescope/
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Toad: Will’s Terminal Coding Agent Launches Early Access Preview
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Wrote some notes on Toad, Will's new not-yet-open-source-but-soon terminal coding agent built on Textual He's charging companies $5,000 for early access to the preview before it goes open source, I'd love to see that model work here! https://
simonwillison.net/2025/Jul/23/an
nouncing-toad/
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Deepfakes and synthetic media in legal systems
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I saw "Combat Synthetic Media in the Legal System" and briefly thought it might be about lawyers citing hallucinated cases, but it's about deepfakes
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Satya’s Naming Decision Rumor at Microsoft
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I heard a rumor that naming decision came from Satya himself
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LLMs Progress: Six Months in Language Model Development
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I have a tag! https://
simonwillison.net/tags/pelican-r
iding-a-bicycle/
… I also pulled a while bunch of them together in this talk a couple of months ago https://
simonwillison.net/2025/Jun/6/six
-months-in-llms/
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