SimonWillison.net is the long-running blog of Simon Willison, a software engineer, open-source creator, and co-author of the original Django framework. He writes about Python, Django, Datasette, AI tooling, prompt engineering, search, databases, APIs, data journalism, and practical software architecture. The blog includes detailed notes from experiments, conference talks, and real projects. Readers will find clear explanations of topics such as LLM workflows, SQL patterns, data publishing, scraping, deployment, caching, and modern developer tooling. Simon also publishes frequent micro-posts and TIL entries that document small discoveries and tricks from day-to-day engineering work. The tone is practical and research oriented, making the site a valuable resource for anyone interested in serious engineering and open data.
365 articles from this blog
OpenAI releases GPT-5.6 family (Luna, Terra, Sol) with pricing, benchmarks, and new API features like programmatic tool calling and multi-agent support.
Announcement of Muse Spark 1.1 with API access, improved agentic tool calling, and computer use capabilities.
Release of llm-meta-ai 0.1, an LLM plugin for the Meta AI API supporting the muse-spark-1.1 model.
Release notes for llm 0.31.1, a command-line tool for accessing large language models, with a bug fix for OpenAI Chat Completion endpoints.
Jarred Sumner details rewriting Bun from Zig to Rust using AI coding agents, highlighting memory safety and test suite benefits.
OpenAI upgrades ChatGPT voice mode with GPT-Live, featuring GPT-5.5 for complex tasks and improved conversation flow.
sqlite-utils 4.0 introduces database schema migrations, nested transactions, and compound foreign keys for SQLite databases.
Announcement of sqlite-migrate 0.2, a simple database migration system for SQLite based on sqlite-utils.
A web component for embedding code from GitHub URLs, built with GPT-5.5, fetching raw content and displaying line ranges.
Announcement of sqlite-utils 4.0, a Python CLI and library for SQLite database manipulation with new schema migration features.
Release of sqlite-utils 4.0rc4, a Python CLI and library for manipulating SQLite databases, with feedback from Claude Fable 5.
Tencent releases Hy3, a 295B-parameter MoE model outperforming larger open-source models, available free on OpenRouter.
sqlite-utils 4.0rc3 release adds compound foreign key support and case-insensitive column name handling.
Introduction of datasette-agent-edit 0.1a0, a storage-agnostic plugin providing file-editing tools for Datasette Agent plugins.
Release of micropython-wasm 0.1a2, a Python library for running MicroPython sandboxes using WebAssembly with a new CLI.
Exploring a Python code sandbox using MicroPython compiled to WebAssembly for safe plugin execution.
OpenAI introduces Lockdown Mode to prevent data exfiltration from prompt injection attacks in ChatGPT.
Andreas Kling explains Ladybird browser's shift to no longer accept public pull requests, emphasizing responsibility and code quality.
Analysis of the tension between AI enthusiasts and skeptics in software teams, highlighting the race for innovation versus maintaining reliability.
Uber caps employee AI coding tool spending at $1,500/month per tool to manage costs after overshooting its 2026 AI budget.
