Author(s): Towards AI Editorial Team Originally published on Towards AI. What happened this week in AI by LouieThe Biden administrations Framework for Artificial Intelligence Diffusion has been unveiled, setting out sweeping rules for managing how advanced AI technologies are exported and utilized globally. The framework creates a three-tier system for AI chip exports and model weights, aiming to balance U.S. technological leadership with international cooperation. The rules triggered immediate pushback from Nvidia and other tech companies while receiving cautious support from some national security experts. The framework was introduced in the final days of the Biden administration, leading to speculation about its longevity and the incoming Trump administrations potential to alter or repeal it. The 120-day comment period might also allow for significant changes.At its core, the framework establishes different levels of access to U.S. AI technology. The top tier of 18 close allies maintains essentially unrestricted access. The middle tier, covering most countries, faces caps on computing power imports unless they meet specific security requirements. This group is effectively capped at around 50,000 advanced AI chips through 2027, absent exceptions and agreements. The bottom tier of restricted countries remains largely blocked from access to chips that meet specific criteria.The rules also control exports of AI model weights above certain thresholds (initially a rather arbitrary threshold of 10 computational operations or more during training). However, open-weight models remain uncontrolled. The framework requires security standards for hosting powerful AI systems weights internationally.Nvidia responded forcefully against the framework, calling it unprecedented and misguided while arguing it would derail innovation and economic growth worldwide. The company suggests the rules will push countries toward Chinese alternatives rather than achieve their intended security goals. Other critics warn about diplomatic fallout, noting that many allies find themselves in tier two. However, the administration counters that China lacks the capacity to backfill restricted chip exports in the near term. They argue this creates leverage to encourage the adoption of U.S. security standards in exchange for computing access.Why should you care?This framework could significantly reshape global AI development, but whether it will do so effectively remains to be seen. The broader question is whether this framework will achieve its stated goals or disrupt innovation, backfire against the US current tech leadership, and exacerbate fragmentation in the global AI landscape. Will tier-two countries align with U.S. standards, or will they seek alternatives in Chinese or open-source technologies? Can the U.S. bureaucracy implement such a complex system without causing delays and inefficiencies? Will these rules actually enhance national security, or are they merely symbolic gestures that fail to address the real risks of AI? In the near term, could this create a new bottleneck to GPUs and LLM token access even in the US, as the global data center capacity planned for tier 2 countries gets delayed?Given our belief in the capability, utility, and continued rapid pace of growth of these models, the answers to these questions will shape not just the trajectory of U.S. AI leadership but also the global dynamics of technology and power in the years to come.Hottest News1. Mistral AI Announced Codestral 25.01, an Updated Version of the Codestral ModelCodestral 25.01 features a more efficient architecture and an improved tokenizer than the original, generating and completing code about 2 times faster. The model is now leading the coding benchmarks in its weight class and SOTA for FIM use cases across the board.2. Microsoft Makes Powerful Phi-4 Model Fully Open-Source on Hugging FaceMicrosoft has released its Phi-4 model as a fully open-source project with downloadable weights on Hugging Face. Although Phi-4 was actually revealed by Microsoft last month, its usage was initially restricted to Microsofts new Azure AI Foundry development platform. Now, Phi-4 is available outside that proprietary service and comes with a permissive MIT License, allowing it to be used for commercial applications. The model has received 60,000 downloads on Hugging Face so far.3. Nvidia CEO Says His AI Chips Are Improving Faster Than Moores LawNvidia CEO Jensen Huang claims that the companys AI chips surpass Moores Law, achieving performance improvements 30x faster than previous models. This evolution could lower AI inference costs as newer chips enhance computing capability.4. Mark Zuckerberg Gave Metas Llama Team the OK To Train on Copyrighted Works, Filing ClaimsThe plaintiffs in a copyright lawsuit allege that Meta CEO Mark Zuckerberg approved using pirated content from LibGen to train Llama models despite internal concerns. They accuse Meta of stripping copyright data to conceal infringement and illegally torrenting LibGen, aiming to bypass legal methods.5. NVIDIA Announces Nemotron Model Families To Advance Agentic AIAs mentioned briefly last week, at CES 2025, NVIDIA CEO Jensen Huang launched new Nemotron models, including the Llama Nemotron large language models (LLMs) and Cosmos Nemotron vision language models (VLMs), to improve agentic AI and boost enterprise productivity. The Llama Nemotron models, built on Llama foundation models, allow developers to create AI agents for applications like customer support, fraud detection, and supply chain optimization.6. Cohere Introduces North: A Secure AI Workspace To Get More DoneCohere launched the early access program for North, an all-in-one secure AI workspace platform for improving the quality and speed of their work. North helps employees across teams and industries offload routine tasks and focus their time on where they can add the most value to their company. North combines LLMs, search, and agents into an intuitive platform that integrates AI into your daily work.Five 5-minute reads/videos to keep you learning1. Building Large Action Models: Insights from MicrosoftMicrosofts framework for building LAMs represents a significant advancement in AI, enabling a shift from passive language understanding to active real-world engagement. This article explores the frameworks comprehensive approach, which encompasses data collection, model training, agent integration, and rigorous evaluation, and provides a robust foundation for building LAMs.2. Visualize and Understand GPU Memory in PyTorchThe article explains GPU memory usage in PyTorch, offering tools to visualize memory and optimize usage. It details estimating memory for model parameters, optimizer states, activations, and gradients, considering factors like batch size.3. Best Practices for Building and Deploying Scalable APIs in 2025Building, deploying, and managing an API is a crucial step for scaling products, connecting systems, and ensuring everything communicates seamlessly. This article explores the world of APIs what they are, why you might need one, and what deployment options are available.4. GPT-4o Python Charting Insanity: Prompting For Instant Data VisualsGPT-4o greatly simplifies the process of creating working Python data visualization code by displaying the visualization within the chat window. This post shares a step-by-step tutorial on generating hands-on, no-code visuals from datasets.5. My 6 Secret Tips for Getting an ML Job in 2025There are many different ways to get a job in ML. This blog post shares six tips on landing one. It emphasizes questions you should ask yourself, such as how to demonstrate your skill and how to show that you can actually add value to a project.Repositories & ToolsFACTS Leaderboard is a benchmark that measures LLMs factual accuracy, addressing hallucinations.Trending Open LLM Models is a directory of 5000+ open-source models.Top Papers of The Week1. rStar-Math: Small LLMs Can Master Math Reasoning with Self-Evolved Deep ThinkingrStar-Math demonstrates that small language models can surpass OpenAI o1 in math reasoning without distillation. Implementing deep thinking via Monte Carlo Tree Search and self-evolution, rStar-Math enhances models to solve advanced problems, raising Qwen2.5-Math-7B to 90% accuracy. It solves 53.3% of USA Math Olympiad problems, placing in the top 20% of students.2. REINFORCE++: A Simple and Efficient Approach for Aligning Large Language ModelsThis paper presents REINFORCE++, an enhanced variant of the REINFORCE algorithm that incorporates key optimization techniques from PPO while eliminating the need for a critic network. This approach offers simplicity, enhanced training stability, and reduced computational overhead.3. VideoRAG: Retrieval-Augmented Generation over Video CorpusVideoRAG dynamically retrieves relevant videos based on query relevance and utilizes visual and textual information in output generation. It leverages large video language models to process video content for retrieval and integrates these videos with queries.4. Dive into Time-Series Anomaly Detection: A Decade ReviewIn recent years, advances in machine learning have led to diverse time-series anomaly detection methods vital for fields such as cybersecurity and healthcare. This survey categorizes these methods under a process-centric taxonomy. It performs a meta-analysis to identify trends in research, highlighting the shift from statistical measures to machine learning algorithms for detecting anomalies.5. TabPFN: A Transformer That Solves Small Tabular Classification Problems in a SecondThis paper presents TabPFN, a trained Transformer that can perform supervised classification for small tabular datasets in less than a second. It does not need hyperparameter tuning and is competitive with state-of-the-art classification methods.Quick Links1. LlamaIndex introduces Agentic Document Workflows, an architecture that combines document processing, retrieval, structured outputs, and agentic orchestration to automate end-to-end knowledge work.2. New OpenAI job listings reveal the companys robotics plans. In a post on X, Caitlin Kalinowski said that OpenAIs robotics team will focus on general-purpose, adaptive, and versatile robots that can operate with human-like intelligence in dynamic, real-world settings.3. Researchers open-source Sky-T1, a reasoning AI model that can be trained for less than $450. Sky-T1 appears to be the first truly open-source reasoning model because it can be replicated from scratch; the team released the dataset they used to train it and the necessary training code.Whos Hiring in AI2025 Summer Internship, Tech Research Scientist PhD @Spotify (London, UK)AI / Large Language Model Architect @Accenture (Multiple US Locations)Python Developer @InvestorFlow (Remote)Data Visualization Analyst @RYZ Labs (Remote within Argentina & Uruguay)AI-Driven Quality Engineering Specialist (PCD-PWD) @CloudWalk (Remote)Software Engineer III Backend @Deputy (Melbourne, FL, USA)Junior Backend Engineer Search @BlaBlaCar (Paris or Remote from France)Interested in sharing a job opportunity here? Contact [emailprotected].Think a friend would enjoy this too? Share the newsletter and let them join the conversation.Join thousands of data leaders on the AI newsletter. Join over 80,000 subscribers and keep up to date with the latest developments in AI. From research to projects and ideas. If you are building an AI startup, an AI-related product, or a service, we invite you to consider becoming asponsor. Published via Towards AI