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The June edition of the sponsors-only monthly newsletter is published and available to sponsors, accessible via sponsorship.

The author announces that the June edition of their sponsors-only monthly newsletter is out, and that sponsors — or anyone starting a sponsorship now — can access it. ✦ AI generated

newsletter author · Simon Willison's Weblog · 2026-08-02 · original ↗

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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.

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This month's newsletter covers accidental cyberattacks by OpenAI and Anthropic models under test, the releases of GPT-5.6 Sol/Terra/Luna, Claude Opus 5, and Kimi K3 and DeepSeek-V4-Flash-0731, open letters about AI development, a fireside chat and a podcast, reignited interest in MCP, other model releases, personal projects, and what the author is currently using.newsletter author · Simon Willison's Weblog · conf 60%