Simon Willison's Weblog: Entries simonwillison.net

Wilson Lin on FastRender: a browser built by thousands of parallel agents

simonwillison.net·15w·Hacker News

First impressions of Claude Cowork, Anthropic’s general agent

simonwillison.net·17w·Hacker News

My answers to the questions I posed about porting open source code with LLMs

simonwillison.net·17w·Hacker News

Fly’s new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time

simonwillison.net·17w·Hacker News

LLM predictions for 2026, shared with Oxide and Friends

simonwillison.net·17w

Introducing gisthost.github.io

simonwillison.net·18w

2025: The year in LLMs

simonwillison.net·18w·Lobsters, Hacker News, r/LocalLLaMA

How Rob Pike got spammed with an AI slop “act of kindness”

simonwillison.net·19w·Hacker News

A new way to extract detailed transcripts from Claude Code

simonwillison.net·19w·Hacker News

Cooking with Claude

simonwillison.net·20w·Hacker News

Your job is to deliver code you have proven to work

simonwillison.net·20w·Lobsters, Hacker News, r/programming

Gemini 3 Flash

simonwillison.net·20w·Hacker News

I ported JustHTML from Python to JavaScript with Codex CLI and GPT-5.2 in 4.5 hours

simonwillison.net·21w·Hacker News

JustHTML is a fascinating example of vibe engineering in action

simonwillison.net·21w·Hacker News

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

simonwillison.net·21w·Hacker News

GPT-5.2

simonwillison.net·21w

Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson

simonwillison.net·24w

Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult

simonwillison.net·24w·Hacker News, Hacker News

sqlite-utils 4.0a1 has several (minor) backwards incompatible changes

simonwillison.net·24w

Olmo 3 is a fully open LLM

simonwillison.net·24w·Hacker News

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