Anthropic Withholds Claude Mythos, Meta's Closed Pivot & Agentic Software

from AI Radar: Daily Tech Brief · host Easify

In this episode of AI RADAR, we cover a major turning point: **Anthropic** halts the release of **Claude Mythos** due to severe zero-day hacking risks, launching Project Glasswing to harden global cyber infrastructure instead.Next, **Meta** pivots from its open-weights ethos to launch **Muse Spark**, a closed multimodal reasoning model. We also cover Sierra's **Ghostwriter**, as Bret Taylor predicts the end of traditional SaaS software, replaced by autonomous AI agents.Finally, quick hits on **Oracle's** new Fusion Agentic Applications and **OpenAI's** radical policy blueprint preparing the grid and economy for superintelligence.Sources:• Anthropic: https://www.anthropic.com/news/project-glasswing• Meta: https://artificialanalysis.ai/models/muse-spark/launch• Sierra: https://techcrunch.com/2026/04/09/sierras-bret-taylor-says-the-era-of-clicking-buttons-is-over/• Oracle: https://futurumgroup.com/insights/oracles-fusion-agentic-apps-can-platform-first-ai-finally-deliver-enterprise-roi/• OpenAI: https://news.bloomberglaw.com/tech-and-telecom-law/openai-suggests-electric-grid-safety-net-spending-in-ai-era

Episode metadata supplied by the publisher feed · Published Apr 11, 2026

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Anthropic Withholds Claude Mythos, Meta's Closed Pivot & Agentic Software

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