Release: llm-gemini 0.31 gemini-3.1-flash-lite is no longer a preview. Here's my write-up of the Gemini 3.1 Flash-Lite Preview model back in March. I don't believe this new non-preview model has changed since then. Tags: llm-release, gemini, llm, google, generative-ai, ai, llms
Tool: Big Words I'm using my vibe coded macOS presentations tool to put together a talk, and I wanted to add a slide with some text on it. The tool only accepts URLs, so I put together a quick page that accepts query string arguments and turns them into a simple slide. Here's an example: https://tools.simonwillison.net/big-words?text=simonwillison.net&gradient=1&size=9.5 Double click or double tap the page to access a form for modifying the different options. Tags: vibe-coding, tools
Behind the Scenes Hardening Firefox with Claude Mythos Preview Fascinating, in-depth details on how Mozilla used their access to the Claude Mythos preview to locate and then fix hundreds of vulnerabilities in Firefox: Suddenly, the bugs are very good Just a few months ago, AI-generated security bug reports to open source projects were mostly known for being unwanted slop. Dealing with reports that look plausibly correct but are wrong imposes an asymmetric cost on project maintainers: it’s cheap…
There weren't a lot of big new announcements from Anthropic at yesterday's Code w/ Claude event, but the biggest by far was the deal they've struck with SpaceX/xAI to use "all of the capacity of their Colossus data center". As I mentioned in my live blog of the keynote, that's the one with the particularly bad environmental record. The gas turbines installed to power the facility initially ran without Clean Air Act permits or pollution control devices, which they got away with by classifying…
SymfonyDay Montreal 2026 schedule is live! Join us on June 4, 2026, at L'Espace Quartier Latin (UQAM) for a day of pure PHP and Symfony expertise. 🎤 Speaker announcement! Florian Merle, Backend Developer, baksla.sh, will present "Empower creativity…
A deep dive into idempotency, from the theory behind safe retries to a practical Laravel implementation using the Laravel Idempotency package. Read more
Tool: GitHub Repo Stats One of the things I always look for when evaluating a new GitHub repository is the number of commits it has... but that number isn't visible on GitHub's mobile site layout. I built this tool to fix that, using this prompt: Given a GitHub repo URL or foo/bar repo ID show information about that repo absorbed via wither REST or graphql CORS fetch() including the number of commits in the repo and other useful stats Example output for simonw/datasette and simonw/llm. Tags:…
Read the full post on https://stitcher.io/blog/php-biggest-problem
Socket's Threat Research Team discovered five malicious NuGet packages published under the account bmrxntfj that typosquat widely used Chinese .NET UI and infrastructure libraries. Each package grafts a .NET Reactor protected infostealer payload onto a decompiled copy of a legitimate open source library. The stealer targets saved credentials across 12 browsers, 8 desktop cryptocurrency wallets, 5 browser wallet extensions and exfiltrates to a newly-registered C2 domain. Across all versions, the…
I'm at Anthropic's Code w/ Claude event today. Here's my live blog of the morning keynote sessions. Tags: ai, generative-ai, llms, anthropic, claude, claude-code, live-blog
See the video version at https://youtu.be/Nk9ayWxkJ1M It’s an unfortunate piece of our current developer reality that a lot of our day is spent worrying about how many tokens we’re spending. Every time you send structured data to an LLM API, you’re paying for tokens. And if you’re sending arrays of similar objects as JSON, you’re […] The post Token-Oriented Object Notation (TOON) For PHP Developers appeared first on PHP Architect.
Symfony 8.1.0-BETA1 has just been released. This is a pre-release version of Symfony 8.1. If you want to test it in your own applications before its final release, run the following commands: 1 2 3 $ composer config minimum-stability…
I recently talked with Joseph Ruscio about AI coding tools for Heavybit's High Leverage podcast: Ep. #9, The AI Coding Paradigm Shift with Simon Willison. Here are some of my highlights, including my disturbing realization that vibe coding and agentic engineering have started to converge in my own work. One thing I really enjoy about podcasts is that they sometimes push me to think out loud in a way that exposes an idea I've not previously been able to put into words. Vibe coding and agentic…
Symfony 6.4.38 has just been released. Read the Symfony upgrade guide to learn more about upgrading Symfony and use the SymfonyInsight upgrade reports to detect the code you will need to change in your project. Tip…