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Claude Opus 5 Arrives, Gemini 4 Pre-Training Begins, and AI Steps Into the Research Lab: Top 3 AI Updates, July 27, 2026
Anthropic released Claude Opus 5 with a 1M-token context window and near-Fable-5 performance at the same price as Opus 4.8. Google announced that Gemini 4 pre-training has already begun — described as the most ambitious training run in Google history. And Claude Science, Anthropic's AI workbench for scientists connected to 60+ research databases, is quietly redefining what it means to do research with AI.
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