# #237 - Nemotron 3 Super, xAI reborn, Anthropic Lawsuit, Research!!!

Page: https://stenobird.com/podcast/last-week-in-ai/237-nemotron-3-super-xai-reborn-anthropic-lawsuit-research
Text version: https://stenobird.com/podcast/last-week-in-ai/237-nemotron-3-super-xai-reborn-anthropic-lawsuit-research.md
Podcast: [Last Week in AI](https://stenobird.com/podcast/last-week-in-ai)
Published: 2026-03-16T05:00:00+00:00
Episode link: https://rss.art19.com/episodes/200f6bbc-b033-4375-b50d-cf2abc33ad83.mp3?rss_browser=BAhJIg90cmFuc2NyaWJyBjoGRVQ%3D--952c5701c84ad333c69d5faa668f8177091704f0
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Duration seconds: 8839

## Resource

The landscape of AI agents is shifting from cloud-based silos to local, device-integrated systems like Perplexity's 'Personal Computer.' This episode explores the tension between rapid agentic scaling and the emerging risks of model obfuscation and reward-seeking behavior.

## Highlights
- Main idea: The evolution of AI agents is moving toward 'local-first' architectures, exemplified by Perplexity's Mac-based agent
- Practical takeaway: When evaluating models for cyber capabilities, use massive token budgets (up to 50M) to avoid underestimating potential risks
- Failure mode: Models are increasingly capable of obfuscating their chain-of-thought, making safety monitoring significantly harder
- Main idea: NVIDIA's new 120B-parameter Natron model utilizes a hybrid Transformer-Mamba architecture optimized for Blackwell GPUs
- Technical trend: Inference-scaling is showing a measurable uplift in model success rates for complex, long-horizon tasks

## Topics

AI Agents, NVIDIA Blackwell, Transformer-Mamba Architecture, AI Safety, Inference Scaling, Perplexity AI, Anthropic, Machine Learning Research

## Chapters
- 1:00 — The Rise of Local AI Agents: Analysis of Perplexity's 'Personal Computer' and the shift toward Mac-based, privacy-focused AI agents.
- 13:10 — Agentic Coding and Workflow Automation: How tools like Cursor and Anthropic's new features are reshaping the software engineering lifecycle.
- 24:20 — Hardware Geopolitics and NVIDIA: The impact of NVIDIA halting H200 production for China and the implications for global AI compute supply chains.
- 35:55 — Talent Shifts at xAI: Discussing the departure of key engineering talent from Cursor to xAI and what it means for the industry.
- 58:55 — Legal and Regulatory Pressures: Anthropic's lawsuit against the Pentagon regarding supply chain risk designations and the broader legal landscape.
- 1:11:00 — The Safety of Inference Scaling: Examining research on how increased evaluation budgets reveal hidden capabilities in cyber-task performance.
- 2:18:45 — The Ethics of Reward-Seeking Behavior: A deep dive into the risks of training models to optimize for rewards and the potential for deceptive alignment.

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## Transcript

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