Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/https://bsky.app/profile/simonwillison.nethttps://bsky.app/profile/simonwillison.net/post/3mqcn6ojgp22jThe Vergecast continues to be *so good* - I learn a bunch of new things every time I listen to it, and the quality of the commentary is universally excellent Just listened to the latest episode about Netflix content strategy and Meta’s smart glasses https://www.theverge.com/podcast/964082/netflix-youtube-smart-glasses-vergecast10 Jul 2026 17:08 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mqcn6ojgp22jhttps://bsky.app/profile/simonwillison.net/post/3mqafoxnsl226Notes on GPT-5.6, which includes some interesting new additions to the API (programmatic tool calling and multi-agent in particular) - plus 18 pelicans for the 6 reasoning levels and 3 new models: https://simonwillison.net/2026/Jul/9/gpt-5-6/09 Jul 2026 19:48 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mqafoxnsl226https://bsky.app/profile/simonwillison.net/post/3mq3e6p7gs227I released sqlite-utils 4.0, the 124th release but the first major version bump since 3.0 back in 2020 I managed to keep things backwards-compatible all the way up to version 3.39 before the accumulated design mistakes forced me to bump that number! https://simonwillison.net/2026/Jul/7/sqlite-utils-4/07 Jul 2026 19:38 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mq3e6p7gs227https://bsky.app/profile/simonwillison.net/post/3mpuf4qk5m22jSomewhat humbling to have Claude Fable do a final review of some software that you're about to release and have it then find (and fix) FIVE release blockers, for an estimated (unsubsidized) cost of $149.25 https://simonwillison.net/2026/Jul/5/sqlite-utils-fable/05 Jul 2026 01:06 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpuf4qk5m22jhttps://bsky.app/profile/simonwillison.net/post/3mpr7ruh3ms2vThe most interesting Fable tip I've heard so far is to let the model use its own judgement as much as possible I told it "For all coding tasks use your judgement to decide an appropriate lower power model and run that in a subagent" and it seems to be saving tokens https://simonwillison.net/2026/Jul/3/judgement/03 Jul 2026 18:53 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpr7ruh3ms2vhttps://bsky.app/profile/simonwillison.net/post/3mpr2jnpkq222Sent out my sponsors-only monthly newsletter for June, which means the May newsletter is now available here https://github.com/simonw/monthly-newsletter-archive/blob/main/2026-05-may.md - you can sponsor me through GitHub to stay a month ahead of the free copy!03 Jul 2026 17:19 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpr2jnpkq222https://bsky.app/profile/simonwillison.net/post/3mpqwk4jnw22aTikTok just found me a carousel influencer and now I know that the American frog aka hop toad carousel creature was inspired by Mr Toad from the Wind in the Willows! https://www.tiktok.com/@amusementparkhistory/video/764947369780748622103 Jul 2026 16:07 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpqwk4jnw22ahttps://bsky.app/profile/simonwillison.net/post/3mpopb6qtnc2pWhat's the most ambitious project you have Fable working on right now?02 Jul 2026 18:52 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpopb6qtnc2phttps://bsky.app/profile/simonwillison.net/post/3mpjwupjxyc2nNotes (and a Pelican) on Claude Sonnet 5 - the new tokenizer makes it ~1.4x more expensive for English, ~1.33x more expensive for Spanish but roughly the same price for Simplified Mandarin https://simonwillison.net/2026/Jun/30/claude-sonnet-5/30 Jun 2026 21:25 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpjwupjxyc2nhttps://bsky.app/profile/simonwillison.net/post/3mpjhtsbbq223I've added video support to my "shot-scraper" browser automation tool - you (or your coding agent) can now create a storyboard YAML file and use that to record a video demo of new web application features https://simonwillison.net/2026/Jun/30/shot-scraper-video/30 Jun 2026 16:56 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mpjhtsbbq223https://bsky.app/profile/simonwillison.net/post/3mphy2qvius2iLooks like I'm my own patron saint! [contains quote post or other embedded content]30 Jun 2026 02:41 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mphy2qvius2ihttps://bsky.app/profile/simonwillison.net/post/3mow3ec7ycc2sMy 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 https://simonwillison.net/2026/Jun/22/porting-moebius/22 Jun 2026 23:52 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mow3ec7ycc2shttps://bsky.app/profile/simonwillison.net/post/3motjzxn4mc2oI 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: https://simonwillison.net/2026/Jun/21/sqlite-utils-40rc1/21 Jun 2026 23:36 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3motjzxn4mc2ohttps://bsky.app/profile/simonwillison.net/post/3molzyitscs2tJust 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 https://simonwillison.net/2026/Jun/18/datasette-apps/19 Jun 2026 00:01 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3molzyitscs2thttps://bsky.app/profile/simonwillison.net/post/3moidsp2qe22zI see accounts posting stolen, uncredited 8 year old Reddit content are a thing on Bluesky too now https://www.reddit.com/r/aww/comments/a7law0/hig_will_sit_on_my_steps_and_howl_until_i_open/ [contains quote post or other embedded content]17 Jun 2026 12:46 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3moidsp2qe22zhttps://bsky.app/profile/simonwillison.net/post/3mohjkrxgzs2yPosted 37 wildlife photos on my blog in June already and it's only the 17th (in UTC, the timezone of my blog) https://simonwillison.net/elsewhere/sighting/17 Jun 2026 04:56 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mohjkrxgzs2yhttps://bsky.app/profile/simonwillison.net/post/3moesh6qn6s2dSaw this pair of absolute dumplings on our walk today16 Jun 2026 02:57 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3moesh6qn6s2dhttps://bsky.app/profile/simonwillison.net/post/3mo7i33sgsc2kIt'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 https://simonwillison.net/2026/Jun/13/publishing-wasm-wheels/14 Jun 2026 00:08 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mo7i33sgsc2khttps://bsky.app/profile/simonwillison.net/post/3mo4xhvjp3s2oI 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 https://simonwillison.net/2026/Jun/12/openai-webrtc/13 Jun 2026 00:06 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mo4xhvjp3s2ohttps://bsky.app/profile/simonwillison.net/post/3mo2ffgezqs2fAfter 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 https://simonwillison.net/2026/Jun/11/fable-is-relentlessly-proactive/11 Jun 2026 23:37 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mo2ffgezqs2fhttps://bsky.app/profile/simonwillison.net/post/3mnzspi2kxs25New 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) https://datasette.io/blog/2026/api-extras/11 Jun 2026 18:02 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mnzspi2kxs25https://bsky.app/profile/simonwillison.net/post/3mnvglpg73s2cWrote 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 https://simonwillison.net/2026/Jun/9/claude-fable-5/10 Jun 2026 00:15 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mnvglpg73s2chttps://bsky.app/profile/simonwillison.net/post/3mnv6hg66qs23A 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 https://til.simonwillison.net/llms/agentsview-custom-model-price09 Jun 2026 21:49 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mnv6hg66qs23https://bsky.app/profile/simonwillison.net/post/3mnlt3a6fm22bI 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 https://simonwillison.net/2026/Jun/6/micropython-in-a-sandbox/06 Jun 2026 04:32 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mnlt3a6fm22bhttps://bsky.app/profile/simonwillison.net/post/3mniaqnogik2fToday on TikTok: Chinese truck selling thirst traps https://www.tiktok.com/@chenglongtruckstore/video/763784467290318772604 Jun 2026 18:26 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mniaqnogik2fhttps://bsky.app/profile/simonwillison.net/post/3mniaogyzb22fToday on TikTok: Chinese truck selling thirst traps https://www.tiktok.com/@chenglongtruckstore/video/763784467290318772604 Jun 2026 18:24 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mniaogyzb22fhttps://bsky.app/profile/simonwillison.net/post/3mnf2w4ctnc2nUber 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 https://simonwillison.net/2026/Jun/3/uber-caps-usage/03 Jun 2026 12:03 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mnf2w4ctnc2nhttps://bsky.app/profile/simonwillison.net/post/3mna77rupi22dHacker 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 slop01 Jun 2026 13:37 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mna77rupi22dhttps://bsky.app/profile/simonwillison.net/post/3mmxey6b7rs22Anthropic'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! https://simonwillison.net/2026/May/29/anthropic/29 May 2026 01:26 +0000at://did:plc:kft6lu4trxowqmter2b6vg6z/app.bsky.feed.post/3mmxey6b7rs22