Simon Willison's April 2026 newsletter highlights upcoming price increases for Opus 4.7 and GPT-5.5, alongside new releases like Claude Mythos and ChatGPT Images 2.0. The newsletter also touches on LLM security research and other model advancements. Additionally, it features an article discussing the refactoring of LLM 0.32a0 and the historical context of the OpenAI Microsoft AGI clause. AI
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IMPACT Anticipates price changes for key models and new product features, impacting user costs and capabilities.
RANK_REASON The cluster discusses multiple model releases and research papers, fitting the 'research' bucket.