- June 2026
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Anthropic will silently downgrade Claude Fable 5 on AI-development prompts (simonwillison.net)
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Nathan Lambert leaves Ai2, warns open post-training is falling behind (interconnects.ai)
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Apple's new Siri runs on a custom Gemini and Google Cloud GPUs (simonwillison.net)
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Claude Fable 5 and Mythos 5: Anthropic's next frontier release (anthropic.com)
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Mollick on working with Mythos: from steering to commissioning (oneusefulthing.org)
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OpenAI files confidentially for IPO, a week after Anthropic (techcrunch.com)