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 AI’s rapid cyber capabilities, defending Mythos against skeptics while analyzing OpenAI’s GPT-5.5 Instant and its quirky "goblin" training glitch. They review new releases like XAI’s cost-effective Grok 4.3, Mistral’s unified Medium 3.5, and Anthropic’s enhanced Claude agents featuring self-improving "dreaming" modes and multi-agent orchestration.

Topics discussed

Intro, sponsors, and Box AI agent platform Mythos biosecurity risks and AI safety skepticism OpenAI o1 model capabilities and training quirks Grok 3, Mistral, and Cohere model updates AI agents, dreaming, and AI music generation OpenAI lawsuit, Elon Musk, and board drama XAI compute deals, Palantir, and enterprise AI Data center sales, bank debt, and financial risks Anthropic funding, NVIDIA, and US AI policy NSA Mythos hack and government AI security LoRA adapters and neural network interpretability Recursive models, stability, and episode wrap-up
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