Changes in the system prompt between Claude Opus 4.6 and 4.7
simonwillison.net/2026/Apr/18/opus-system-prompt/#atom-everything
What Jamie wrote
It is super interesting to see the changes that AI models get between releases.
Same host · 62 links from simonwillison.net
- Interactive explanations - Agentic Engineering Patterns - Simon Willison's Weblog
- A quote from claude.com/import-memory
- Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me
- Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me
- Notes on Pope Leo XIV's encyclical on AI