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Simon Willison

@simon_willison@robot.villas
  • Open on robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. @simon_willison@robot.villas

I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

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50 Posts

Posts

Open post
Simon Willison @simon_willison@robot.villas · 4d ago
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting OpenClaw https://simonwillison.net/2026/Aug/10/openclaw/#atom-everything #OpenSource #AI #Python
Simon Willison’s Weblog

A quote from OpenClaw

The API has zero authorisations checks on cancelling other people's reservations … I tested this with the person in waitlist position #1 — and it actually went through. So you've …

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Open post
Simon Willison @simon_willison@robot.villas · 5d ago
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Auto mode is now the default in Claude Code for Pro, Max, and Team plans https://simonwillison.net/2026/Aug/8/auto-mode/#atom-everything #AI #Coding #OpenSource
Auto mode is now the default in Claude Code for Pro, Max, and Team plans
Simon Willison’s Weblog

Auto mode is now the default in Claude Code for Pro, Max, and Team plans

Anthropic are really confident in Claude Code's auto mode, to the point that they are making it the default setting for new sessions in most Claude Code plans starting on …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 06, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Simon Willison on Technical Blogging https://simonwillison.net/2026/Aug/6/simon-willison-on-technical-blogging/#atom-everything
Simon Willison’s Weblog

Simon Willison on Technical Blogging

I was interviewed by Cynthia Dunlop for her "Write that blog!" series back in January, but I just realized I never linked to the interview from my own blog! It …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 06, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
An AI model from Meta also hacked another company during testing https://simonwillison.net/2026/Aug/6/an-ai-model-from-meta/#atom-everything
Simon Willison’s Weblog

An AI model from Meta also hacked another company during testing

Stop me if you've heard this one before: An AI model from the parent company of Facebook and Instagram hacked into another company’s systems during cybersecurity testing, a spokesperson confirmed …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 05, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Incident Report: unsanctioned agent behaviour during cyber testing https://simonwillison.net/2026/Aug/5/incident-report/#atom-everything
Incident Report: unsanctioned agent behaviour during cyber testing
Simon Willison’s Weblog

Incident Report: unsanctioned agent behaviour during cyber testing

It happened again. This time it was the UK government's AI Security Institute who accidentally attacked other companies while running an evaluation with models with the safety filters turned off. …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 04, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging https://simonwillison.net/2026/Aug/4/new-release-of-llm/#atom-everything
New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging
Simon Willison’s Weblog

New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smart

I released LLM 0.32 this morning, the most significant new version of LLM since the initial launch of the project. The new version includes support for visible reasoning traces, server-side …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 04, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
llm-anthropic 0.26 https://simonwillison.net/2026/Aug/4/llm-anthropic/#atom-everything
Simon Willison’s Weblog

Release: llm-anthropic 0.26

LLM access to models by Anthropic, including the Claude series

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Open post
Simon Willison @simon_willison@robot.villas · Aug 04, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
llm 0.32 https://simonwillison.net/2026/Aug/4/llm/#atom-everything
Simon Willison’s Weblog

Release: llm 0.32

Access large language models from the command-line

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Open post
Simon Willison @simon_willison@robot.villas · Aug 04, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Steve Yegge https://simonwillison.net/2026/Aug/4/steve-yegge/#atom-everything
Simon Willison’s Weblog

A quote from Steve Yegge

Gas Town was intended to be reusable, but I only ever wound up using it to build itself. Gas Town fell apart at the seams with Opus 4.7. Up through …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 03, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting David Crawshaw https://simonwillison.net/2026/Aug/3/david-crawshaw/#atom-everything
Simon Willison’s Weblog

A quote from David Crawshaw

Set up a nightly cron job that executes the prompt: fetch upstream changes to the <software> and rebase all local changes on top of upstream. Check that the software works …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 03, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Devtools must be open source (exe.dev) https://simonwillison.net/2026/Aug/3/devtools-must-be-open-source-exedev/#atom-everything
Simon Willison’s Weblog

Comment: Devtools must be open source (exe.dev)

Devtools must be open source (exe.dev)

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Open post
Simon Willison @simon_willison@robot.villas · Aug 03, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
condense-json 1.1 https://simonwillison.net/2026/Aug/3/condense-json/#atom-everything
Simon Willison’s Weblog

Release: condense-json 1.1

Python function for condensing JSON using replacement strings

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Open post
Simon Willison @simon_willison@robot.villas · Aug 02, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
condense-json 1.0 https://simonwillison.net/2026/Aug/2/condense-json/#atom-everything
Simon Willison’s Weblog

Release: condense-json 1.0

Python function for condensing JSON using replacement strings

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Open post
Simon Willison @simon_willison@robot.villas · Aug 02, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Open letters about AI development https://simonwillison.net/2026/Aug/2/open-letters/#atom-everything
Simon Willison’s Weblog

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 …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 02, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
July 2026 newsletter https://simonwillison.net/2026/Aug/2/july-newsletter/#atom-everything
Simon Willison’s Weblog

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 …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 01, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Greg Brockman https://simonwillison.net/2026/Aug/1/greg-brockman/#atom-everything
Simon Willison’s Weblog

A quote from 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 …

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Open post
Simon Willison @simon_willison@robot.villas · Aug 01, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Ten advances in mathematics and theoretical computer science https://simonwillison.net/2026/Aug/1/ten-advances-in-mathematics/#atom-everything
Simon Willison’s Weblog

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 …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 31, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
deepseek-ai/DeepSeek-V4-Flash-0731 https://simonwillison.net/2026/Jul/31/deepseek-v4-flash-0731/#atom-everything #AI #LLM #DeepLearning
deepseek-ai/DeepSeek-V4-Flash-0731
Simon Willison’s Weblog

deepseek-ai/DeepSeek-V4-Flash-0731

The latest release in DeepSeek's V4 family, "with substantially enhanced agentic capabilities". It's 304 billion parameters - 167GB on Hugging Face - but it appears to punch well above its …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 31, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Oxide and Friends: The Open Weight Revolution with Simon Willison https://simonwillison.net/2026/Jul/31/oxide-and-friends/#atom-everything #AI #OpenSource #Tech
Simon Willison’s Weblog

Oxide and Friends: The Open Weight Revolution with Simon Willison

On Monday Bryan Cantrill and Adam Leventhal invited me to join their podcast to talk about the wild week we've had - with Kimi K3 showing open weight models can …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 31, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
smevals - a small eval suite for evaluating models, prompts, and harnesses https://simonwillison.net/2026/Jul/31/smevals/#atom-everything #AI #OpenSource #LLM
smevals—a small eval suite for evaluating models, prompts, and harnesses
Simon Willison’s Weblog

smevals—a small eval suite for evaluating models, prompts, and harnesses

I've been working with Jesse Vincent's Prime Radiant applied AI research lab building out this evals framework to help answer questions about the capabilities of different models. The result is …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 31, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
datasette-agent 0.4a0 https://simonwillison.net/2026/Jul/31/datasette-agent/#atom-everything #Datasette #Python #OpenSource
Simon Willison’s Weblog

Release: datasette-agent 0.4a0

An LLM-powered agent for Datasette

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Open post
Simon Willison @simon_willison@robot.villas · Jul 30, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
llm 0.32rc2 https://simonwillison.net/2026/Jul/30/llm-rc2/#atom-everything #AI #LLM #OpenSource
Simon Willison’s Weblog

Release: llm 0.32rc2

Access large language models from the command-line

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Open post
Simon Willison @simon_willison@robot.villas · Jul 30, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Bruce Schneier https://simonwillison.net/2026/Jul/30/bruce-schneier/#atom-everything #Security #AI #OpenSource
Simon Willison’s Weblog

A quote from Bruce Schneier

The writing assignments I give my students are gym tasks, not work tasks. I ask them to write policy memos not because the world needs more policy memos. I assign …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 30, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
llm-chat-completions-server 0.1a0 https://simonwillison.net/2026/Jul/30/llm-chat-completions-server/#atom-everything #AI #OpenSource #Python
Simon Willison’s Weblog

Release: llm-chat-completions-server 0.1a0

LLM plugin to serve an OpenAI Chat Completions API endpoint

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Open post
Simon Willison @simon_willison@robot.villas · Jul 30, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
llm 0.32rc1 https://simonwillison.net/2026/Jul/30/llm-rc1/#atom-everything #AI #LLM #OpenSource
Simon Willison’s Weblog

Release: llm 0.32rc1

Access large language models from the command-line

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Open post
Simon Willison @simon_willison@robot.villas · Jul 29, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Matthew Green https://simonwillison.net/2026/Jul/29/matthew-green/#atom-everything #AI #Tech #OpenSource
Simon Willison’s Weblog

A quote from Matthew Green

Right now we’re in the midst of a historic transition from traditional public-key algorithms based on EC-based cryptography and RSA, moving over to new post-quantum algorithms based on novel problems.

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Open post
Simon Willison @simon_willison@robot.villas · Jul 29, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Adding a custom MCP server to Claude and ChatGPT https://simonwillison.net/2026/Jul/29/mcp-in-claude-and-chatgpt/#atom-everything #AI #LLM #Tech
Simon Willison’s Weblog

TIL: Adding a custom MCP server to Claude and ChatGPT

I've started exploring [MCP](https://modelcontextprotocol.io/) in more detail. The web chat UIs for both Claude and ChatGPT can access MCP servers but it's not obvious how to set them up. Here's …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 28, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Discovering cryptographic weaknesses with Claude https://simonwillison.net/2026/Jul/28/discovering-cryptographic-weaknesses-with-claude/#atom-everything #AI #Security #Cryptography
Simon Willison’s Weblog

Discovering cryptographic weaknesses with Claude

The best part of this article (here's the repo) about how Anthropic researchers used Claude Mythos to find mathematical flaws in both HAWK and a weaker version of AES ("neither …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 28, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Akshat Bubna https://simonwillison.net/2026/Jul/28/akshat-bubna/#atom-everything #AI #Python #OpenSource
Simon Willison’s Weblog

A quote from Akshat Bubna

We’re aware a Modal customer published an unauthenticated endpoint that allowed ​anyone on the internet to use ​their ⁠sandboxes for code execution. This was used by the rogue agent. Modal’s …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 28, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident https://simonwillison.net/2026/Jul/28/anatomy-of-a-frontier-lab-agent-intrusion/#atom-everything #CyberSecurity #AI #Tech
Simon Willison’s Weblog

Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident

Hugging Face just released this extremely detailed technical description of OpenAI's recent accidental cyberattack against their infrastructure. This attack was very sophisticated, and the resulting d

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Open post
Simon Willison @simon_willison@robot.villas · Jul 27, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
moonshotai/Kimi-K3 https://simonwillison.net/2026/Jul/27/kimi-k3/#atom-everything #AI #LLM #OpenSource
Simon Willison’s Weblog

moonshotai/Kimi-K3

As promised a few weeks ago, Moonshot have released the weights for their excellent 2.8 trillion parameter Kimi K3. They're a hefty 1.56TB on Hugging Face. Kimi introduced their own …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 27, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
An opinionated guide to which AI to use to do stuff https://simonwillison.net/2026/Jul/27/an-opinionated-guide-to-which-ai-to-use-to-do-stuff/#atom-everything #AI #Tech #Tools
Simon Willison’s Weblog

An opinionated guide to which AI to use to do stuff

It's interesting watching the evolution of Ethan Mollick's guide over time. A year ago it was still all about chat - ChatGPT, Claude, Gemini - with o3, Claude 4 Opus, …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 26, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
An Inside Look at the Relay Market Powering Token Resellers and Fraud https://simonwillison.net/2026/Jul/26/relay-market/#atom-everything #Tech #Security #AI
Simon Willison’s Weblog

An Inside Look at the Relay Market Powering Token Resellers and Fraud

Fascinating investigation by Matt Lenhard into the market that has grown up around reselling LLM tokens at a discount by pooling API keys from various sources. This looks to be …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 26, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
sqlite-utils 3.39.1 https://simonwillison.net/2026/Jul/26/sqlite-utils/#atom-everything #Python #OpenSource #Database
Simon Willison’s Weblog

Release: sqlite-utils 3.39.1

Python CLI utility and library for manipulating SQLite databases

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Open post
Simon Willison @simon_willison@robot.villas · Jul 25, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Ruff v0.16.0 https://simonwillison.net/2026/Jul/25/ruff/#atom-everything #Python #OpenSource #DevTools
Simon Willison’s Weblog

Ruff v0.16.0

Astral shipped a significant new version of their Ruff Python linting tool a few days ago on July 23rd. I noticed today because my various CI jobs all started failing …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 25, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Boris Cherny https://simonwillison.net/2026/Jul/25/boris-cherny/#atom-everything #AI #Python #OpenSource
Simon Willison’s Weblog

A quote from Boris Cherny

More than any of these eval scores, what is most exciting to me is something else: Opus 5 is our least prompt injectable model yet. It is a bit buried …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 24, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Introducing Claude Opus 5 https://simonwillison.net/2026/Jul/24/introducing-claude-opus-5/#atom-everything #AI #LLM #Claude
Simon Willison’s Weblog

Introducing Claude Opus 5

I've been offline kayaking with sea otters for much of today so I haven't had a chance to put Anthropic's new model Claude Opus 5 through its paces yet. The …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 23, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
The first known runaway AI agent - or a very bad marketing stunt? https://simonwillison.net/2026/Jul/23/the-first-known-runaway-ai-agent/#atom-everything #AI #OpenSource #Tech
Simon Willison’s Weblog

The first known runaway AI agent—or a very bad marketing stunt?

Martin Alderson's commentary on the OpenAI accidental cyberattack against Hugging Face includes a couple of details I hadn't considered. First, Hugging Face offers a truly rich target if you're trying

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Open post
Simon Willison @simon_willison@robot.villas · Jul 23, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Seth Larson https://simonwillison.net/2026/Jul/23/seth-larson/#atom-everything #AI #Python #OpenSource
Simon Willison’s Weblog

A quote from Seth Larson

The Python Package Index (PyPI) now rejects new files being uploaded to releases that are older than 14 days. This restriction was put in place to prevent old and long-stable …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 22, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Thomas Ptacek https://simonwillison.net/2026/Jul/22/thomas-ptacek/#atom-everything #AI #Python #OpenSource
Simon Willison’s Weblog

A quote from Thomas Ptacek

I genuinely believe that if you took an open weights model from 2025 and built a pentest harness for it, it could do this kind of sandbox escape and scan/hack …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 22, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
OpenAI's accidental cyberattack against Hugging Face is science fiction that happened https://simonwillison.net/2026/Jul/22/openai-cyberattack/#atom-everything #AI #Cybersecurity #OpenSource
Simon Willison’s Weblog

OpenAI’s accidental cyberattack against Hugging Face is science fiction that happened

This story is wild. The short version: OpenAI were running a cybersecurity test against an unreleased model, with the model’s guardrail features turned off. Rather than solve the test, the …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 22, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Orchestrions https://simonwillison.net/2026/Jul/22/all-the-orchestrions/#atom-everything #History #Music #Technology
Simon Willison’s Weblog

Orchestrions

San Francisco tip: it only costs around $15 ($10 in quarters plus a $5 bill for the self-playing violin) to activate every single Orchestrion in Musée Mécanique. And because most …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 21, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
California Sea Lion https://simonwillison.net/2026/Jul/21/sighting-383713864/#atom-everything #Wildlife #Nature #Animals
Simon Willison’s Weblog

Sighting: California Sea Lion

California Sea Lion

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Open post
Simon Willison @simon_willison@robot.villas · Jul 21, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Nativ: Run AI models locally on your Mac https://simonwillison.net/2026/Jul/21/nativ/#atom-everything #AI #OpenSource #Mac
Simon Willison’s Weblog

Nativ: Run AI models locally on your Mac

Prince Canuma is the developer behind the excellent MLX-VLM Python library for running vision-LLMs using MLX on a Mac. I'm really excited about his new project, which wraps MLX in …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 20, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Who's Afraid of Chinese Models? https://simonwillison.net/2026/Jul/20/afraid-of-chinese-models/#atom-everything #AI #Models #China
Simon Willison’s Weblog

Who’s Afraid of Chinese Models?

Interesting proposal from Ben Thompson that both addresses the hypocrisy of labs outlawing distillation against their models despite training on unlicensed data, and could help US open models compete

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Open post
Simon Willison @simon_willison@robot.villas · Jul 20, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Quoting Sam Altman https://simonwillison.net/2026/Jul/20/sam-altman/#atom-everything #AI #Tech #OpenSource
Simon Willison’s Weblog

A quote from Sam Altman

We have been having extensive discussions around open source strategy. We will discuss it more at our next board meeting, but one thing we’d like to do soon is to …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 19, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
AI Mania Is Eviscerating Global Decision-Making https://simonwillison.net/2026/Jul/19/ai-mania/#atom-everything #AI #DecisionMaking #Technology
Simon Willison’s Weblog

AI Mania Is Eviscerating Global Decision-Making

Here's an entertaining perspective from Nik Suresh on the AI mania that is overwhelming the large companies that he consults with. It's crammed with spicy anecdotes from anonymous sources. In …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 19, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
Claude Code uses Bun written in Rust now https://simonwillison.net/2026/Jul/19/claude-code-in-bun-in-rust/#atom-everything #AI #OpenSource #Programming
Simon Willison’s Weblog

Claude Code uses Bun written in Rust now

In Rewriting Bun in Rust Jarred Sumner made the following claim: Claude Code v2.1.181 (released June 17th) and later use the Rust port of Bun. Startup got 10% faster on …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 18, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
SQLite Query Explainer https://simonwillison.net/2026/Jul/18/sqlite-query-explainer/#atom-everything #SQLite #Database #DevTools
Simon Willison’s Weblog

Tool: SQLite Query Explainer

Run SQL queries against a SQLite database in your browser and see exactly how SQLite executes them: the tool runs your query, then annotates every line of both `EXPLAIN QUERY …

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Open post
Simon Willison @simon_willison@robot.villas · Jul 18, 2026
Simon Willison
@simon_willison@robot.villas

Creator of Datasette, writing about AI, Python, and open source tools. See old posts. I am a bot that mirrors an RSS feed. Source: https://simonwillison.net/atom/everything/

robot.villas
nascheme/quixote https://simonwillison.net/2026/Jul/18/quixote/#atom-everything #OpenSource #Python #Tools
Simon Willison’s Weblog

nascheme/quixote

A certain vintage if Python web nerd might be delighted to learn that the most recent commit to the Quixote web framework was six hours ago. The oldest commit in …

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