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Abstract collage of AI model logos and benchmark charts representing the week of April 27 2026 in AI news
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Artem Vysotsky

AI News, Week of April 27: GPT-5.5 Ships, DeepSeek V4 Goes Open-Weight, Anthropic Pulls $65B

GPT-5.5 lands with doubled long-context scores, DeepSeek releases two MIT-licensed open-weight models at a fraction of frontier price, and Anthropic collects $65 billion in investment pledges from Amazon and Google — all in one week.

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