Writing about Agentic Engineering Patterns
I’ve started a new project to collect and document Agentic Engineering Patterns—coding practices and patterns to help get the best results out of this new era of coding agent development …
AI programming tools: Simon talks about tools to make AI programming more effective. One helps a coding agent demonstrate what the code it wrote can do. The other is for making screenshots.
https://simonwillison.net/2026/Feb/10/showboat-and-rodney/ #documentation #colding #simonw #agents #llm #ai #+
Introducing Showboat and Rodney, so agents can demo what they’ve built
A key challenge working with coding agents is having them both test what they’ve built and demonstrate that software to you, their overseer. This goes beyond automated tests—we need artifacts …
2025: The year in LLMs: Simon's retrospective on trends in AI in the last year
https://simonwillison.net/2025/Dec/31/the-year-in-llms/ #summary #simonw #2025
#llm #ai #+
2025: The year in LLMs
This is the third in my annual series reviewing everything that happened in the LLM space over the past 12 months. For previous years see Stuff we figured out about …
Gemma 3 270M: Google released a new LLM that is very very small and intended as a building block for your own tuned systems
https://simonwillison.net/2025/Aug/14/gemma-3-270m/ #hacking #google #simonw #gemma #llm #fun #ai #+
Introducing Gemma 3 270M: The compact model for hyper-efficient AI
New from Google: Gemma 3 270M, a compact, 270-million parameter model designed from the ground up for task-specific fine-tuning with strong instruction-following and text structuring capabilities already trained in. This …
GPT-5: Key characteristics, pricing and model card
I’ve had preview access to the new GPT-5 model family for the past two weeks (see related video and my disclosures) and have been using GPT-5 as my daily-driver. It’s …
ChatGPT for extended coding: Remarkable lengthy session getting an LLM to write C code, compile it as a sqlite extension, then test and use it from Python
https://fedi.simonwillison.net/@simon/112145894103840794 #programming #simonw #llm #ai #+
Just got ChatGPT Code Interpreter to write me a SQLite extension in C from scratch, then compile it with GCC, then load it into Python and test it out, then iterate on it to fix the bugs
All on my phone while pottering around the house
Here's the full transcript - it got stuck in a bit of an error loop towards the end of this first one: https://chat.openai.com/share/a52ee3e4-7a91-48ee-a16e-3f680a65edf2
So I pasted what it had done so far into a fresh session and got it working there: https://chat.openai.com/share/29bd1d15-66ed-4902-8eb1-3e9c7b820af2
Catching up on LLMs: Simon Willison gave a talk / overview of recent AI work from a hands-on perspective
https://simonwillison.net/2023/Aug/3/weird-world-of-llms/ #learning #simonw #llm #ai #+
Catching up on the weird world of LLMs
I gave a talk on Sunday at North Bay Python where I attempted to summarize the last few years of development in the space of LLMs—Large Language Models, the technology …
Welcome to Datasette Cloud - Datasette Cloud
Datasette Cloud is the new SaaS hosting platform for the Datasette open source project. It enables teams to create a private collaboration space, upload and share data securely with each other, and then selectively publish that data to the world.
Some Bits: Nelson's Linkblog