GDS weighs in on the NHS's decision to retreat from Open Source
The UK's NHS closed its open-source repositories due to security vulnerabilities, prompting a public rebuke from the Government Digital Service and sparking a deeper debate on open-source strategy in the AI era.
Simon Willison · May 17, 2026
Exploring the new `servo` crate
The Servo team released the first `servo` crate (v0.1.0), packaging their browser engine as an embeddable Rust library. Simon Willison used Claude Code to build a CLI screenshot tool called `servo-shot`, validating Servo's software rendering pipeline on stable Rust, though compiling to WebAssembly remains limited by threads and SpiderMonkey dependencies.
Simon Willison · Apr 13, 2026
Your harness, your memory
LangChain CEO argues that agent harnesses are inextricably tied to memory, and using a closed harness means ceding control of your memory to a third party, creating significant lock-in.
LangChain Blog · Apr 11, 2026
Safetensors is Joining the PyTorch Foundation
Safetensors joins the PyTorch Foundation, marking a new development in safety and governance in the open-source community.
Hugging Face Blog · Apr 8, 2026
research-llm-apis 2026-04-04
Simon Willison used AI to analyze raw HTTP APIs from Anthropic, OpenAI, Gemini, and Mistral to redesign LLM library's abstraction layer.
Simon Willison · Apr 5, 2026
Training mRNA Language Models Across 25 Species for $165
The OpenMed team developed an efficient mRNA optimization pipeline, training the CodonRoBERTa-large-v2 model across 25 species by comparing various transformer architectures, significantly enhancing protein expression capabilities.
Hugging Face Blog · Mar 31, 2026
GGML and llama.cpp join HF to ensure the long-term progress of Local AI
The joining of GGML and llama.cpp will provide stronger support for the development of Local AI, facilitating the popularization and development of open-source intelligence.
Hugging Face Blog · Feb 20, 2026
microgpt
Andrej Karpathy's microgpt project demonstrates how to implement a simplified GPT model from scratch in just 200 lines of Python code, revealing a trend towards minimalism in AI development.
Andrej Karpathy · Feb 12, 2026