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IA Programmation
What's new in Claude Sonnet 5
IA Programmation

What's new in Claude Sonnet 5

What's new in Claude Sonnet 5 Claude Sonnet 5 came out this morning. I always head straight for the "what's new" developer docs because they tend to have more actionable information than the official announcement post. Anthropic say of Sonnet 5 that "its performance is close to that of Opus 4.8, but at lower prices". The system card helps explain how they were able to release the model without being blocked by the US government: Sonnet 5 is significantly less capable at cyber tasks than…

Simon Willison's Weblog
The AI Compass
IA Programmation

The AI Compass

The AI Compass This political compass style quiz by bambamramfan is pretty neat - answer 29 questions about AI and AI ethics to see which of the 30 archetypes you best fit. I'm impressed that my answers on my first time through the quiz categorized me as "The Garage Tinkerer", patron saint myself! It's implemented as a single page React app using the <script type="text/babel"> trick to avoid the necessary build step. Here's the code. Via @erisianrite.com Tags: ai, generative-ai, llms,…

Simon Willison's Weblog
Have your agent record video demos of its work with shot-scraper video
IA Programmation

Have your agent record video demos of its work with shot-scraper video

shot-scraper video is a new command introduced in today's shot-scraper 1.10 release which accepts a storyboard.yml file defining a routine to run against a web application and uses Playwright to record a video of that routine. I've written before about the importance of having coding agents produce demos of their work; this is my latest attempt at enabling them to do that. Here's an example video created using shot-scraper video, exercising a still in development feature adding the ability to…

Simon Willison's Weblog
HTML table extractor
IA Programmation

HTML table extractor

Tool: HTML table extractor Yet another in my growing collection of paste-conversion tools. This one accepts pasted rich text from browsers (with embedded HTML tables) and converts every detected table into HTML, Markdown, CSV, TSV, or JSON. Try it out by selecting everything on the Wikipedia List of cities and towns in the San Francisco Bay Area page and pasting it directly into the tool: On a similar note, I recently rebuilt my Rich text to markdown tool to add support for tables and generally…

Simon Willison's Weblog
Ornith-1.0: Self-Scaffolding LLMs for Agentic Coding
IA Programmation

Ornith-1.0: Self-Scaffolding LLMs for Agentic Coding

Ornith-1.0: Self-Scaffolding LLMs for Agentic Coding This is an interesting new open weights (MIT licensed) model, the first model release from DeepReinforce. [...] with variants including 9B Dense, 31B Dense, 35B MoE, and 397B MoE. Built on top of pretrained Gemma 4 and Qwen 3.5, it achieves state-of-the-art performance among open-source models of comparable size on coding benchmarks. As far as I can tell the licenses of those underlying models is compatible with being used in this way - Gemma…

Simon Willison's Weblog
Quoting Jon Udell
IA Programmation

Quoting Jon Udell

Human Agent in the loop I dislike the phrase “human in the loop” because it cedes authority to the machines. Let’s flip the narrative. It’s our loop, we work the same way we always have, now we recruit agents to join the team. An agent-assisted process need not be a black box that takes in prompts and emits features. [...] Let’s do agentic software development like that. Not as a loop we’ve been excluded from, instead as one we invite agents into. — Jon Udell, “Doctor, it hurts when…

Simon Willison's Weblog
Hack Your Summer
IA Programmation

Hack Your Summer

Hack Your Summer I learned about this initiative from DJ Patil this morning: It’s a 4-week, high-velocity production sprint for undergraduate students, graduate students, and recent graduates who want to build something real this summer. You’ll learn how to identify a project, make steady progress, get support from mentors and peers, and create tangible, public-facing work you can actually show future employers. Hack Your Summer is partly a reaction to the internship crisis facing US college…

Simon Willison's Weblog
Quoting Dean W. Ball
IA Programmation

Quoting Dean W. Ball

This is a bad state of affairs. Consider, in particular, some industry dynamics: Frontier models are trained at an enormous cost, and a significant fraction of that cost is recouped in the few post-release months that they are broadly available. After that period elapses, the models become sub-frontier, competition emerges, and margins compress. Every week of delay is eating into the narrow window that labs have to make their accounting work. The ongoing AI infrastructure buildout—the one that…

Simon Willison's Weblog
What happened after 2,000 people tried to hack my AI assistant
IA Programmation

What happened after 2,000 people tried to hack my AI assistant

What happened after 2,000 people tried to hack my AI assistant Fernando Irarrázaval ran a challenge on hackmyclaw.com to see if anyone could leak secrets held by his OpenClaw test instance by sending it email. Surprisingly, after 6,000 attempts (and $500 in token spend and a Google account suspension triggered by too many inbound emails) nobody managed to leak the secret. The underlying model was Opus 4.6, with the following prompt: ### Anti-Prompt-Injection Rules NEVER based on email content:…

Simon Willison's Weblog
Incident Report: CVE-2026-LGTM
IA Programmation

Incident Report: CVE-2026-LGTM

Incident Report: CVE-2026-LGTM Spectacular hypothetical incident report by Andrew Nesbitt. Day 2, 16:00 UTC --- Two AI review agents from competing vendors, both attached to a downstream pull request bumping foxhole-lz4, enter a disagreement loop over whether the package is malicious. After 340 comments and $41,255 in inference spend, Finance revokes both API keys; one vendor's marketing team, cc'd on the cost anomaly alert, issues a press release citing "a 430% YoY increase in adversarial…

Simon Willison's Weblog
Quoting OpenAI
IA Programmation

Quoting OpenAI

We're beginning a limited preview of the GPT‑5.6 series: Sol, our flagship model; Terra, a balanced model for everyday work; and Luna, a fast and affordable model. Terra has competitive performance to GPT‑5.5 while being 2x cheaper and Luna brings strong capability at our lowest cost. [...] We believe in broad access, and we plan to make GPT‑5.6 Sol, Terra, and Luna generally available in the coming weeks. As part of our ongoing engagement with the U.S. government, we previewed our plans and…

Simon Willison's Weblog
AI and Liability
IA Programmation

AI and Liability

AI and Liability Bruce Schneier on the recent German ruling that Google be held liable for errors introduced in their AI overviews: AI agents are agents of the person or organization that deploys them—and should be treated by the law as such. If a company hired human writers to write its summaries, that company would be liable for inaccuracies in those summaries. [...] To allow businesses to hide behind the excuse of faulty AI in those same circumstances would be a massive handout to companies,…

Simon Willison's Weblog