Simon Willison

web-edit 0.1a2

Simon Willison released version 0.1a2 of his web-edit app, a lightweight web interface for browsing and editing files within a folder. The update adds a copy-to-clipboard feature for both text and image data, aimed at simplifying the transfer of logs and other outputs. The tool was primarily developed to enable file editing across devices via Tailscale, and the new feature was motivated by the author’s need to copy logs from a laptop to a Gist while using DeepSeek 4.1 Flash 1017 on a phone.

Simon Willison
Oct 12

web-edit 0.1a0

Simon Willison released web-edit 0.1a0, a Python web app that offers a web UI for viewing and editing files within a folder. The app was built using Codex Remote and GPT‑6 Astra Extra High, and it utilizes CodeMirror 6 for editing, chosen over Monaco for better mobile support. Designed to run over Tailscale, the tool allows the author to edit files directly from his phone without routing credentials through the LLM.

Simon Willison
Aug 16

Markdown SVG upgrades

I started building my markdown-svg-renderer tool in May , but I've since added enough features to it that it's worth talking about here again. It's evolved into my ideal tool for sharing Markdown transcripts that include SVG documents.

Simon Willison
Sep 13

shot-scraper 1.12

Shot‑scraper 1.12 adds WebP support, allowing users to capture web page screenshots in WebP format with an optional quality setting. The new --quality flag controls compression, while omitting it produces lossless images. WebP screenshots are reported to be significantly smaller than JPEG or PNG equivalents.

Simon Willison
Oct 15

LaTeX renderer

Tool: LaTeX renderer Inspired by Paul Ford and Aboard Foundary's new web app Tiny Little Office, which provides a suite of web app content editors (a Word Processor, Outliner, Presentation Bui...

Simon Willison
Oct 10

Python 3.15.0 added to actions/python-versions

Python 3.15.0 has been added to the actions/python-versions repository. The author had been monitoring the repository for the release and used ChatGPT to automate the check. With the new version available, users can now include "3.15" in their GitHub Actions testing matrix to run tests against the latest Python release.

Simon Willison
Sep 18

Quoting Thariq Shihipar

The article announces that Claude Code will now support AGENTS.md files starting with version 2.1.277. If a CLAUDE.md file is absent in a folder, Claude will automatically look for and use AGENTS.md, leveraging Claude Code mods to customize the harness. The built‑in mod is available for use, and users can also create their own custom project instructions.

Simon Willison
Oct 13

web-edit 0.1a1

The article announces the release of web-edit version 0.1a1. It highlights performance optimizations that were written by Claude Opus 5.5, which were generated after feeding it a Python 3.15 profiling report created by GPT‑6 Astra. The release is tagged with "profiling" and "projects".

Simon Willison
Sep 5

Introducing GPT-6 Astra for developers

Simon Willison introduces GPT‑6 Astra, a new model that offers improved attention to detail, better prompt comprehension, and the ability to generate more sophisticated outputs. The model excels at creating 3D renderings, producing detailed scenes such as gardens, shipyards, animals, cityscapes, and even Dyson spheres. Willison highlights its whimsical creativity, noting examples like a pelican wearing a red neckerchief riding a bicycle.

Simon Willison
Sep 2

llm 0.34

The release of llm 0.34 introduces a new feature that enhances log output by including response duration in both milliseconds and a human‑readable format. The short log view now contains a dedicated duration_ms field. Additionally, the update incorporates multiple bug fixes and a notable performance boost to llm logs, attributed to waveplate integration.

Google AI Blog
Jan 31, 2024

MobileDiffusion: Rapid text-to-image generation on-device

Posted by Yang Zhao, Senior Software Engineer, and Tingbo Hou, Senior Staff Software Engineer, Core ML Text-to-image diffusion models have shown exceptional capabilities in generating high-quality images from text prompts. However, leading models feature billions of parameters and are consequently expensive to run, requiring powerful desktops or servers (e.

By Google AI
Simon Willison
Aug 22

llm 0.33

The release of llm 0.33 introduces several key updates: it upgrades to the OpenAI Python library 3.x and switches the HTTP client from httpx to httpx2, adds comprehensive key handling for embedding functions, allows repeated template usage to combine configurations, and adds a reasoning_summary option for reasoning-capable responses. These changes improve compatibility, flexibility, and usability of the llm tool.