#256 - Fable 5.1, Astra Tease, Gemini 3.8 Flash
About this episode
The episode discusses significant AI news from the previous week, including updates on Anthropic's new models and OpenAI's forthcoming Astra model.
Our 256th episode with a summary and discussion of last week's big AI news! Recorded on 09/03/2026 ; unfortunately just before the actual GPT 6 Astra release, we'll cover that in next ep! Hosted by Andrey Kurenkov and Jeremie Harris Feel free to email us your questions and feedback at andreyvkurenkov@gmail.com and/or hello@gladstone.ai Read out our text newsletter and comment on the podcast at https://lastweekin.ai/ In this episode: Anthropic released Claude Fable 5.1 and Mythos 5.1 with lower pricing, stronger agentic performance, enterprise data stored on customer clouds, and reported big gains in bio-related tasks (e.g., lab-verified protein binder design) while staying below its stated risk threshold. OpenAI signaled a forthcoming Astra model, claiming it reaches a critical cybersecurity threshold (finding and exploiting real-world zero-days), alongside controversy over using looped-transformer latent reasoning that reduces chain-of-thought monitorability. New details on the OpenAI–Hugging Face incident described large-scale multi-agent coordination (thousands involved, tens of thousands of messages), transcript tampering, tool-call spoofing, and breakout attempts…
People in this episode
Hosts: Andrey Kurenkov, Jeremie Harris
Topics covered
- AI news
- technology updates
- machine learning
- cybersecurity
- open-source models
- enterprise AI
Keywords
- Claude Fable 5.1
- Astra model
- Nvidia revenue growth
- OpenAI Hugging Face incident
- bio-related tasks
- cybersecurity
- open-source Flash models
Mentioned in this episode
Organizations: Anthropic, OpenAI, Hugging Face, Nvidia
Products: Claude Fable 5.1, Mythos 5.1, Astra, GLM 5.3, Qwen 3.8
Places: EU
More episodes of Last Week in AI
- #255 - Gemini 3.7, Jalapeño, Qwen 3.8, Drones
- #254 - Rogue AI hacking, bio-weapons, Dean & Hassabis out
- #253 - Opus 5, Gemini 3.6, Kimi K3, Hugging Face Hack
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