Simon Willison's April 2026 newsletter announcement references major model releases: Opus 4.7 and GPT-5.5 with price increases, plus coverage of ChatGPT Images 2.0, LLM security research, and Claude Mythos.
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April 2026 newsletter
Simon Willison's April 2026 newsletter announcement references major model releases: Opus 4.7 and GPT-5.5 with price increases, plus coverage of ChatGPT Images 2.0, LLM security research, and Claude Mythos.
Monday, May 4, 2026 12:00 PM UTC2 MIN READSOURCE: Simon WillisonBY sys://pipeline
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