xAI Open-Sources Grok Build Coding Agent — 1 Million Lines of Rust
xAI open-sourced Grok Build — its agentic coding tool with terminal UI — on GitHub on July 15, 2026. The project is approximately 1 million lines of Rust code.
Categories: AI, xAI, Willison (AI)
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Nedeľa 26. júla 2026
Simon Willison: Claude Opus 5 Is the Least Prompt-Injectable Model Yet
Simon Willison shared a quote from Boris Cherny (Anthropic) confirming that Claude Opus 5 is the most resistant model to prompt injection attacks in evaluations and red-teaming.
Simon Willison: Ruff v0.16.0 Expands Default Rules from 59 to 413
Simon Willison tested Ruff v0.16.0, which dramatically expanded default rules from 59 to 413, finding hundreds of previously undetected issues in three major projects — and used GPT-5.6 and Claude Opus to fix them automatically.
Sobota 25. júla 2026
Anthropic Releases Claude Opus 5, Its Most Capable Model
Anthropic launched Claude Opus 5, leading the Artificial Analysis leaderboard with major improvements in reasoning, coding, and cybersecurity.
Nvidia, Microsoft and Meta Lead 25-Company Open-Weight AI Coalition
Twenty-five tech companies including Nvidia, Microsoft, and Meta formed a coalition to advocate for development and distribution of open-weight AI models, directly pushing back against closed model approaches.
OpenAI Launches GPT-Live in ChatGPT Desktop App
OpenAI introduced full-duplex voice mode GPT-Live to the ChatGPT desktop app, also enabling voice control of Codex and ChatGPT Work agents during conversations.
Cognition AI Acquires Startup Poke
Cognition AI, maker of the autonomous coder Devin, acquired startup Poke, expanding its ecosystem of AI tools for developers.
Midjourney Acquires Astrology App Co-Star
Midjourney, known for AI image generation, acquired popular astrology app Co-Star, moving beyond the visual AI space.
China Seeks Clarity in AI Talks with the US
Chinese officials are requesting a more concrete agenda for AI talks with the United States amid ongoing technological and trade tensions.
White House AI Power Czar Departs
The White House advisor responsible for energy infrastructure for AI data centers is departing, raising questions about continuity of AI energy policy.
Israel and UK Appoint AI Ministers
Israel and the United Kingdom appointed dedicated AI ministers, strengthening governmental commitment to strategic AI development and related legislation.
Sobota 18. júla 2026
Simon Willison built an LLM cliché highlighter tool to identify AI-generated writing patterns
Simon Willison on July 17, 2026 released a browser-based tool that highlights ten recurring patterns in LLM-generated writing — from 'no X, no Y' chains to phrases like 'sit with that' — as a response to the homogenization of AI-assisted content.