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Devtools must be open source (exe.dev)
IA Programmation

Devtools must be open source (exe.dev)

My comment on Devtools must be open source (exe.dev) — Hacker News.One of the arguments for open source software for end-users has always been the freedom to examine and modify how that software works. The reality for most people - even expert programmers - has been that the freedom is more about being able to lean on other people to do that. Most people can't justify the time commitment needed to read and then modify the code for tools they use very often. I think LLMs have changed that…

Simon Willison's Weblog
condense-json 1.1
IA Programmation

condense-json 1.1

Release: condense-json 1.1 After shipping condense-json 1.0 I started integrating it into LLM, and found there were some desirable new features already: Replacements object can now include values other than strings. These will be identified and used as structural replacements by condense_json() and uncondense_json(). #8 Objects can be used as the basis for merge operations. condense_json() will identify if there are objects that are a close match and will store instructions for keys to update…

Simon Willison's Weblog
Kicking off the PHP Onboarding Initiative Special Interest Group
Programmation Web

Kicking off the PHP Onboarding Initiative Special Interest Group

One of the most common pieces of feedback we hear from the PHP community is that the newcomer experience could use some improvement, and that we may be losing new users because of it. This is something that we as a community can address, and it's why The PHP Foundation made it part of our strategy document for the rest of 2026. Improving that experience matters a lot to us, because a better new user experience means more community growth and retention. We are launching the PHP Onboarding…

The PHP Foundation
condense-json 1.0
IA Programmation

condense-json 1.0

Release: condense-json 1.0 I'm trying to get braver at releasing 1.0 versions. This little library is a year and a half old now - I've applied some sensible and non-disruptive fixes and shipped the big 1.0 for it. Here's an example of what it can do, lifted from the README: { "foo": { "bar": { "string": "This is a string with foxes in it", "nested": { "more": ["Here is a string", "another with foxes in it too"] } } } } Combine that with a replacements object: {"1": "with foxes in it"} And…

Simon Willison's Weblog
Open letters about AI development
IA Programmation

Open letters about AI development

Open letters about AI development I wrote this summary of the past few weeks of open letters as a section of my sponsors-only newsletter but I've decided to share it here as well. Open Weights and American AI Leadership was shepherded by Microsoft, dated July 24th, and signed by 235 AI-adjacent companies including NVIDIA, Amazon, Y Combinator, The Linux Foundation and (a later signer) OpenAI. It's clearly an argument designed to counter any instincts by the current US government to ban or limit…

Simon Willison's Weblog
July 2026 newsletter
IA Programmation

July 2026 newsletter

The June edition of my sponsors-only monthly newsletter is out. If you are a sponsor (or if you start a sponsorship now) you can access it here. This month: Accidental cyberattacks by OpenAl and Anthropic models under test GPT-5.6 Sol, Terra, and Luna Claude Opus 5 Kimi K3 and DeepSeek-V4-Flash-0731 Open letters about Al development A fireside chat and a podcast Reigniting my interest in MCP Other model releases My projects What I'm using at the moment Here's a copy of the June newsletter as a…

Simon Willison's Weblog
Quoting Greg Brockman
IA Programmation

Quoting Greg Brockman

at openai, many people hook their chatgpt up to slack. people really don't like when a coworker's chatgpt contacts them asking for help with a task, even when they'd be perfectly happy doing that same work if asked by that coworker. reinforces how much people care about human relationships and helping each other, and want AI to give time back — or enhance time together — rather than become a layer separating people. — Greg Brockman, President and Co-Founder, OpenAI Tags: ai-ethics,…

Simon Willison's Weblog
datasette-apps 0.2a0
IA Programmation

datasette-apps 0.2a0

Release: datasette-apps 0.2a0 Changes that improve Datasette Apps when created and edited using Datasette Agent: New app_debug() tool allowing agent to open an app (invisibly) and test it using JavaScript. #33 New app_list() tool for listing apps the user has permission to edit, so the agent can edit them. #36 The app_debug() tool is pretty neat: it works by displaying the app in a opacity: 0 iframe with pointer-events: none (so it can't be seen or interacted with) and then executing…

Simon Willison's Weblog
Ten advances in mathematics and theoretical computer science
IA Programmation

Ten advances in mathematics and theoretical computer science

Ten advances in mathematics and theoretical computer science A few days ago it was Anthropic discovering cryptographic weaknesses with Claude using Mythos Preview, spending $100,000 on tokens and with prompts that included "again we are not looking for low hanging fruit, we want proper research to find genuinly hard findings." Now it's OpenAI's turn to flex. They set "an internal version of Astra, our next major model" on finding solutions to ten mathematical problems that "have seen no…

Simon Willison's Weblog
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