Model Releases
Last Week in AI #251 - Mythos Back, Sonnet 5, Etched, LongCat
Last Week in AI #251 (July 1 2026) highlighted key industry moves: Trump lifted restrictions on Anthropic, which in turn released Claude Sonnet 5 with enhanced agentic coding, cybersecurity safeguards
Last Week in AI #251 (July 1 2026) highlighted key industry moves: Trump lifted restrictions on Anthropic, which in turn released Claude Sonnet 5 with enhanced agentic coding, cybersecurity safeguards, and a jailbreak‑severity framework. The episode also covered Google’s NotebookLM creating TikTok‑style vertical video summaries of research, the launch of Nano Banana 2 Lite, and chip‑related updates from Etched and Baidu.
Source: Last Week in AI | 2026-07-21