Simon Willison’s Weblog
112 articles in the Truth Foundry index. Each links out to the original.
- Nilay Patel Warns Augmented Reality Glasses Require Mass Surveillance · Nilay Patel argues that practical AR glasses necessitate invasive cloud recording, threatening user privacy.
- Anthropic Rewrites Bun in Rust Using AI Agents · Anthropic engineers used AI agents to rewrite the Bun runtime from Zig to Rust.
- OpenAI Launches GPT-Live Voice Mode Powered by GPT-5.5 · OpenAI introduces GPT-Live, a voice mode for ChatGPT powered by GPT-5.5 with advanced reasoning and web search capabilities.
- Developer Kenton Varda Bans AI-Generated PR Descriptions · Kenton Varda has banned AI-written change descriptions for his team due to poor quality.
- sqlite-utils 4.0 Adds Schema Migrations, Nested Transactions, and Compound Foreign Keys · sqlite-utils 4.0 introduces database migrations, nested transactions via db.atomic(), and compound foreign key support.
- Simon Willison's Monthly Briefing Highlights sqlite-utils and LLM Updates · Simon Willison shares a monthly update on sqlite-utils and key LLM developments.
- Experimental Web Component Embeds GitHub Code with Line Numbers · A new Web Component uses GPT-5.5 to fetch and display specific lines from GitHub repositories.
- Simon Willison Announces sqlite-utils 4.0rc4 Release · Developer Simon Willison releases the fourth release candidate for sqlite-utils.
- Tencent Releases Hy3: 295B-Parameter MoE Model Rivals Flagship Open-Source Models · Tencent unveils Hy3, a 295B-parameter MoE model with 256K context length available on OpenRouter
- sqlite-utils 4.0 Stable Adds Compound Foreign Keys and Case-Insensitive Columns · sqlite-utils 4.0 introduces compound foreign keys and case-insensitive column support.
- sqlite-utils 4.0rc2 Fixes Critical Transaction Bugs After AI-Assisted Review · Developer releases sqlite-utils 4.0rc2 after fixing data loss and transaction bugs with AI help
- Simon Willison Announces Monthly LLM Briefing Subscription · Simon Willison launches a paid monthly email digest covering key LLM developments.
- Course Creator Josh W. Comeau Reports 50% Revenue Drop Amid AI Disruption · Developer course creator Josh W. Comeau notes significant sales declines attributed to AI replacing paid education.
- June 2026 Newsletter: New AI Models, Export Rules, and Tool Updates · Newsletter covers Claude Fable 5, GPT-5.6, GLM-5.2, and US export restrictions
- Developer Ships Alpha Coding Agent Built on Evolved LLM Framework · A new Python-based coding agent using GPT-5.5 automates file editing and command execution via TDD
- DSPy Framework Improves Datasette Agent SQL Prompt Accuracy · Researchers use DSPy to optimize Datasette Agent's SQL system prompts, reducing column-guessing errors.
- Understanding Code is Essential for Collaborating with AI Agents · Geoffrey Litt argues developers must deeply understand code to effectively collaborate with AI agents.
- US Lifts Export Controls on Anthropic's Claude Fable 5 and Mythos 5 Models · The US Department of Commerce has lifted export controls on Anthropic's Claude Fable 5 and Mythos 5 AI models.
- Gemini 3.1 Flash Lite Image Model Delivers Improved Raccoon Illustration · The Nano Banana 2 Lite image model generates a superior Where's Waldo-style raccoon illustration compared to previous versions.
- Claude Sonnet 5 Released with 1M Context Window and New Tokenizer · Anthropic launches Claude Sonnet 5 with 1M token context and a new tokenizer that increases input costs by roughly 30%.
- Developer Shares React Code for AI Ethics Political Compass Quiz · Simon Willison shares the React code for a quiz that categorizes users into 30 AI ethics archetypes.
- Simon Willison Releases shot-scraper 1.10 with AI-Generated Video Demos · Simon Willison launches shot-scraper video command to automate browser demo recording for coding agents.
- Simon Willison Launches Paid Newsletter for LLM Development Updates · Developer Simon Willison launches a paid monthly newsletter curating important LLM developments.
- Review of HTML Table Extraction Tool for Converting Rich Text to Multiple Formats · A new tool converts HTML tables from pasted rich text into HTML, Markdown, CSV, TSV, and JSON formats.
- Simon Willison Shares Monthly Safari Tab Count and Applescript Usage · Simon Willison reports 69 Safari tabs, 26 TIL posts, and 9 Applescript scripts.
- DeepReinforce Releases Ornith-1.0 Self-Scaffolding LLM for Agentic Coding · DeepReinforce launches Ornith-1.0, an open-weight LLM designed for autonomous coding agents.
- Jon Udell Advocates for Human-Centric Agentic Software Development · Jon Udell argues developers should invite AI agents as team members rather than treating them as external loops.
- Hack Your Summer Initiative Offers Alternative to Internship Crisis · DJ Patil's Hack Your Summer provides a 4-week production sprint for students lacking internships.
- Dean W. Ball Warns AI Infrastructure Costs Threaten US Economic Goals · Dean W. Ball argues that high training costs and narrow market access undermine US AI infrastructure plans.
- Timothy B. Lee Criticizes Claim That LLMs Require No Skill · Timothy B. Lee argues that LLMs have a significant learning curve and require skill to use effectively.