Last Week in AI Last Week in AI

#244 - GPT-5.5 Instant, Grok 4.3, OpenAI vs Musk

May 11, 2026

Summary

Hosts Andrei Kurenkov and Jeremy Harris discuss the real-world impact of Mythos on cybersecurity, defending its significance against skeptics. They review OpenAI’s GPT-5.5 Instant, noting its cyber risks and a quirky "goblin" training anomaly. The episode also covers XAI’s cost-effective Grok 4.3, Mistral’s unified Medium 3.5 model, and Anthropic’s new agent features like "Dreaming" for self-improvement.

Topics discussed

Intro, Box AI Agent sponsorship, and MIFOs discussion Mythos paper analysis and bioweapon risks OpenAI o1 model capabilities and training quirks Grok 3, Mistral, and Cohere model updates AI agents, dreaming, and Suno music licensing OpenAI lawsuit, Elon Musk, and Sam Altman drama XAI compute deals, Palantir, and FIS partnership Data center sales, bank debt, and financial risks Anthropic funding, China AI, and interpretability NVIDIA GB200, Pentagon contracts, and safety NSA cyber offense and safety adapter training Recursive agents, Hamiltonian dynamics, and chess Outro and listener questions
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