Episode
#251 - Mythos Back, Sonnet 5, Etched, LongCat
- Podcast
- Last Week in AI
- Published
- Jul 9, 2026
- Duration seconds
- 5402
- Processing state
not_requested
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Summary
Our 251st episode with a summary and discussion of last week's big AI news! Recorded on 07/01/2026 Hosted by Andrey Kurenkov and Jeremie Harris Feel free to email us your questions and feedback at [email protected] and/or [email protected] Read out our text newsletter and comment on the podcast at https://lastweekin.ai/ In this episode: Anthropic redeploys Claude Fable 5 after talks with the US government, adding new cybersecurity classifiers, drafting a jailbreak-severity framework with major partners, and expanding model-testing coordination; broader concerns remain about the inevitability of jailbreaks and uneven release constraints versus OpenAI. Anthropic launches Claude Sonnet 5 with time-limited discounted pricing, improved agentic coding and benchmark performance, reduced misaligned behavior, and default cyber safeguards despite relatively weaker cybersecurity capability than top-tier models. New tools and apps include Google NotebookLM generating TikTok-style vertical video summaries of uploaded research and Google releasing Nano Banana 2 Lite, a faster, cheaper image generator available via API. Business and research updates span Etched’s push toward full-stack inference hardware with major funding and contracts, Baidu’s AI chip unit IPO ambitions, Agility Robotics’ SPAC plan, DeepSeek’s hiring expansion, and China’s open-source Longcat 2.0 MoE model with notable large-scale training and efficiency techniques alongside new long-horizon agent benchmarks. Timestamps (note - these don't take into account dynamically inserted ads and therefore may be off by a couple of minutes): (00:00:10) Intro / Banter (00:02:07) News Preview Tools & Apps (00:02:32) Trump drops restrictions on Anthropic's Mythos and Fable models | TechCrunch (00:16:08) Anthro…