My parallel agent side-project today was having Claude Code port the new Moebius image pinpointing model to ONNX in order to run it entirely in the browser simonwillison.net/2026/Jun/22/...

I just released the first release candidate for sqlite-utils v4, adding a migrations system (previously released independently as sqlite-migrate) and support for nested transactions: simonwillison.net/2026/Jun/21/...

Just launched Datasette Apps - a plugin for Datasette that lets you host full HTML+JS apps in an iframe sandbox that can query your database and do interesting things with your data simonwillison.net/2026/Jun/18/...

I see accounts posting stolen, uncredited 8 year old Reddit content are a thing on Bluesky too now www.reddit.com/r/aww/commen...

Posted 37 wildlife photos on my blog in June already and it's only the 17th (in UTC, the timezone of my blog) simonwillison.net/elsewhere/si...

Saw this pair of absolute dumplings on our walk today

It's now possible to compile Python extensions (C, C++, Rust etc) to WebAssembly and distribute them through PyPI such that Pyodide can install them directly simonwillison.net/2026/Jun/13/...

I got fed up of waiting for OpenAI to bring their much improved gpt-realtime-2 voice conversation model to the ChatGPT product, so I upgraded my OpenAI-WebRTC playground tool to use it and to let you paste in a document to have a conversation about, too simonwillison.net/2026/Jun/12/...

After two days with Claude Fable 5 the best way I can describe it is "relentlessly proactive" - here's an example where I dropped in a screenshot of a bug and it span up custom CORS Python servers and used pyobjc-framework-Quartz to capture screenshots simonwillison.net/2026/Jun/11/...

New Datasette release: 1.0a33, which finally brings documents the ?_extra= JSON API mechanism and brings it to the row and query pages in addition to the table pages (Most of the code in this release was built with the help of Claude Fable 5) datasette.io/blog/2026/ap...

Wrote up my initial impressions of Claude Fable 5 - it has a big model smell: slow, expensive and capable of crunching through pretty much everything I threw at it simonwillison.net/2026/Jun/9/c...

A TIL on using agentsview.io to calculate token spending with Claude Fable 5 despite that model not yet being included in the AgentsView pricing database til.simonwillison.net/llms/agentsv...

I may have finally found the Python-in-a-sandbox solution I've been looking for... here's my latest experiment, this time running MicroPython in WebAssembly inside my Python applications simonwillison.net/2026/Jun/6/m...

Today on TikTok: Chinese truck selling thirst traps www.tiktok.com/@chenglongtr...

Today on TikTok: Chinese truck selling thirst traps www.tiktok.com/@chenglongtr...

Uber reportedly now caps coding agents at $1,500/month per employee per tool - seems sensible to me, but it's also an interesting hint at the value Uber thinks these tools are providing simonwillison.net/2026/Jun/3/u...

Hacker News has an alarmingly high tolerance for slop content these days It also has social norms against accusing something of being written with AI, which means the community has trouble strengthening its immune system against that slop

Anthropic's self-reported run-rate revenue growth is wild - Axios Jim VandeHei said he couldn't find "any company — in any industry, in any era — that has scaled organic revenue this quickly at this level as Anthropic" when they were at $30B and now they're at $47B! simonwillison.net/2026/May/29/...

Notes on Claude Opus 4.8, which Anthropic call "a modest but tangible improvement" - plus pelicans riding bicycles for each of the five different thinking efforts simonwillison.net/2026/May/28/...

Given the recent burst of activity around enterprise pricing and contracts, I think April 2026 was the month when both OpenAI and Anthropic found product-market fit simonwillison.net/2026/May/27/...

When I woke up this morning I didn't think I'd be spending a bunch of time today getting familiar with Catholic theology, but here we are. Notes on Pope Leo XIV's encyclical on AI. simonwillison.net/2026/May/25/...

Fun new feature in Datasette 1.0a30 - a "jump to" menu, also available by the "/" keyboard shortcut, which lets you type to jump to a database, table or canned query. It offers a hook so plugins can extend it with additional content too datasette.io/blog/2026/ju...

Has been a while since I wrote about agentic engineering, so this time around some learnings of maintaining Pi as a junior maintainer to @mariozechner.at lucumr.pocoo.org/2026/5/24/pi...

@futurism.com important update to your story from September 2024 futurism.com/the-byte/fac... - the FTC just punished those companies for lying about how their technology works, they weren't listening through device microphones at all

I released the first alpha of Datasette Agent - a conversational AI assistant for Datasette that can answer questions about data in SQLite databases, and can be extended with plugins to add extra tools and features You can watch a demo video or try it out yourself on agent.datasette.io

I don't have much to say about this year's Google I/O because I prefer to write about products that have shipped, not just "coming soon" announcements - but here are some notes on Gemini Spark and Antigravity simonwillison.net/2026/May/20/...

My notes on Gemini 3.5 Flash - 3x the price of Gemini 3 Flash but Google are planning to use it for many of their own products simonwillison.net/2026/May/19/...

To prepare for my #PyConUS lightning talk this afternoon I decided to track down ALL of the names that @openclaw has used since November, using a script against its GitHub repo Warelay → CLAWDIS → CLAWDBOT → Clawdbot → Moltbot →🦞 OpenClaw simonwillison.net/2026/May/16/...

Oh god the discussion in Vancouver is going to be so stupid from all sides. “11 AI agents” is meaningless as a phrase. If I said “I have 11 spreadsheets” or “I have 11 browser tabs” to do my work, it means about the same thing.

This "Unethical Guide to Surviving AI Layoffs" by Mo Bitar perfectly captures the current moment www.tiktok.com/@atmoio/vide...

"old woman possibly damp faster than an old woman should be"

Wrote about today's GitLab restructuring / "workforce reduction" announcement, and ended up digging around in version control for both the GitLab and the 37signals public employee handbooks to help illustrate my thoughts simonwillison.net/2026/May/11/...

New TIL: I figured out how to use my LLM CLI tool in a shebang line, which means you can write executable scripts in English, or hook up more complex scripts with a snippet of YAML template - til.simonwillison.net/llms/llm-she...

This is excellent. I particularly like the definition of the "Zombie Internet", which starts: "It’s people talking to bots, people talking to people, people creating “AI agents” and then instructing them to interact with people. It’s people using AI talking to people who are not using AI [...]"

Mission accomplished: tap danced in the big community college dance recital for the second time

Just realized that the reason I like TikTok so much is that it's lightning talks! I've always loved lightning talks

Under-reported details of the xAI/Anthropic Colossus data center deal: Anthropic get Colossus 1 but xAI keep using the larger Colossus 2, Colossus 1 has a REALLY bad environmental record, and xAI just shut down a bunch of older models on 2 weeks' notice simonwillison.net/2026/May/7/x...

I'm at the Claude w/ Code event in San Francisco, and I'll be live blogging the keynote here: simonwillison.net/2026/May/6/c...

I was talking with Joseph Ruscio on the @heavybit.com podcast the other day when I realized that vibe coding and agentic engineering have started to blur a bit in some of my work - I published some extracts from the transcript simonwillison.net/2026/May/6/v...

AI-run business experiments are interesting and fun up to the point where they waste the time of humans who haven't opted into the experiments - I think they need to keep their own human operators in the loop for outbound actions that affect other people simonwillison.net/2026/May/5/o...

I tried running the same "Generate an SVG of a pelican riding a bicycle" prompt against 21 different quantized variants of the same IBM Granite 4.1 3B model - the results weren't as interesting as I had hoped simonwillison.net/2026/May/4/g...

The AI auto-reply bots from Twitter (fun fact, the software category is genuinely called "reply guy" tools) have started showing up on Bluesky now and it really, really sucks

I added a new feature to my blog (built entirely on my phone with Claude code for web) that imports my iNaturalist photos and adds them to my site's overall timeline simonwillison.net/2026/May/2/s...

Saw this white-crowned sparrow having a lot of a sing

The Zig project's rationale for their blanket ban on AI-assisted contributions makes a lot of sense to me - for them, time spent reviewing PRs isn't about the code, it's about growing new contributors for the future of the project simonwillison.net/2026/Apr/30/...

I released LLM 0.32a0 this morning, a major backwards-compatible refactor of my LLM Python library and CLI tool for working with language models - the new changes should help LLM work better with reasoning models and other new frontier capabilities simonwillison.net/2026/Apr/29/...

I would very much like to see the 2,000 lb stellar sea lion at San Francisco Pier 39, who I believe has now been named "Chonkers" Does anyone know if he keeps a regular schedule?

Some notes on talkie, a new "vintage language model" from a team including Alec Radford (yes, that Alec Radford) "trained on 260B tokens of historical pre-1931 English text" simonwillison.net/2026/Apr/28/...

Love this so much (Also definitive proof that humans are so much better than machines)

Microsoft's MIT licensed VibeVoice speech-to-text model (think Whisper with speaker diarization) is really good - my notes on running the 5.71GB 4bit MLX conversion on an M5 MacBook, using about 60GB of RAM at peak and transcribing 1hr of audio in ~9 mins simonwillison.net/2026/Apr/27/...