Large language models derive from decades of accessible text, but their data consumption outpaces human production, leading to a need for self-generated experiences in AI. The article discusses the importance of exploration in reinforcement learning and how better exploration can enhance generalization in models, highlighting the role of pretraining in solving exploration challenges. It emphasizes that the future of AI progress will focus more on collecting the right experiences rather than merely increasing model capacity.

The article describes the implementation of the DeepSeek R1-zero style training for large language models (LLMs) using a single or multiple GPUs, with a focus on simplicity and efficiency. It highlights the capabilities of the nanoAhaMoment project, which includes full parameter tuning, multi-GPU support, and a full evaluation suite, while maintaining competitive performance with minimal complexity. The repository offers interactive Jupyter notebooks and scripts for training, complete with installation instructions and dependency management.

Reinforcement Learned Teachers (RLT) train teacher models to generate clear explanations from question-answer pairs, enhancing student models' understanding. This innovative approach allows compact teacher models to outperform larger ones in reasoning tasks, significantly reducing training costs and times while maintaining effectiveness. The framework shifts the focus from problem-solving to teaching, promising advancements in AI reasoning models.

Large language models (LLMs) typically cannot adapt their weights dynamically to new tasks or knowledge. The Self-Adapting LLMs (SEAL) framework addresses this limitation by allowing models to generate their own finetuning data and directives for self-adaptation through a reinforcement learning approach, resulting in persistent weight updates and improved performance in knowledge incorporation and few-shot generalization tasks.

TreeRL is a novel reinforcement learning framework that integrates on-policy tree search to enhance the training of language models. By incorporating intermediate supervision and optimizing search efficiency, TreeRL addresses issues common in traditional reinforcement learning methods, such as distribution mismatch and reward hacking. Experimental results show that TreeRL outperforms existing methods in math and code reasoning tasks, showcasing the effectiveness of tree search in this domain.

AI is entering a new phase where the focus shifts from developing methods to defining and evaluating problems, marking a transition to the "second half" of AI. This change is driven by the success of reinforcement learning (RL) that now generalizes across various complex tasks, requiring a reassessment of how we approach AI training and evaluation. The article emphasizes the importance of language pre-training and reasoning in enhancing AI capabilities beyond traditional benchmarks.

Reinforcement Pre-Training (RPT) is introduced as a novel approach for enhancing large language models through reinforcement learning by treating next-token prediction as a reasoning task. RPT utilizes vast text data to improve language modeling accuracy and provides a strong foundation for subsequent reinforcement fine-tuning, demonstrating consistent improvements in prediction accuracy with increased training compute.

Reinforcement Learning on Pre-Training Data (RLPT) introduces a new paradigm for scaling large language models (LLMs) by allowing the policy to autonomously explore meaningful trajectories from pre-training data without relying on human annotations for rewards. By adopting a next-segment reasoning objective, RLPT improves LLM capabilities, as demonstrated by significant performance gains on various reasoning benchmarks and encouraging broader context exploration for enhanced generalization.

The study presents Intuitor, a method utilizing Reinforcement Learning from Internal Feedback (RLIF) that allows large language models (LLMs) to learn using self-certainty as the sole reward signal, eliminating the need for external rewards or labeled data. Experiments show that Intuitor matches the performance of existing methods while achieving better generalization in tasks like code generation, indicating that intrinsic signals can effectively facilitate learning in autonomous AI systems.