April 2026 Newsletter

·2026.05.05 07:38

Key point

Simon Willison sent out the April 2026 newsletter for $10/month sponsors.

Details

Simon Willison sent out the April 2026 newsletter for subscribers to his GitHub Sponsors at the $10/month tier. Subscribers can read the full content, while non-subscribers can preview last month's issue, the March 2026 issue.

This issue covers the price increases for Opus 4.7 and GPT-5.5, Claude Mythos and LLM security research, ChatGPT Images 2.0, additional model releases, blog highlights, and the tools in use as of April 2026.

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