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July 2026 newsletter

The June edition of my sponsors-only monthly newsletter is out. If you are a sponsor (or if you start a sponsorship now) you can access it here . This month: Accidental cyberattacks by OpenAl and Anthropic models under test GPT-5.6 Sol, Terra, and Luna Claude Opus 5 Kimi K3 and DeepSeek-V4-Flash-0731 Open letters about Al development A fireside chat and a podcast Reigniting my interest in MCP…

We haven't written up this one. Simon Willison has the full story — the link below goes straight to it.

Read the original at simonwillison.net →

More in AI

Turn Chatbot Misunderstandings Into Grammar Regression Tests

A custom-grammar bot can be reliable right up until someone types a perfectly reasonable sentence that the grammar author did not anticipate.

  • Separate command parsing from domain validation.
  • Implement time validation function for feeding times.
  • Use failed conversations to improve grammar.

Open letters about AI development

Open letters about AI development I wrote this summary of the past few weeks of open letters as a section of my sponsors-only newsletter but I've decided to share it here as well. Open Weights and American AI Leadership was shepherded by Microsoft, dated July 24th, and signed by 235 AI-adjacent companies including NVIDIA, Amazon, Y…

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