OpenAI's o1 model, which integrates reasoning directly into its architecture, has been a significant topic of discussion in the AI community. The model avoids Monte Carlo Tree Search (MCTS) and focuses on embedding reasoning within the model itself. Noam Brown has been a key figure in this development. However, there have been reports of AnthropicAI's Claude 3.5 Sonnet outperforming OpenAI's o1 in reasoning tasks when using specific prompting techniques. These techniques involve using Chain-of-Thought (CoT) prompting, where thoughts are enclosed within tags and solutions are broken down into clear steps. Dynamic Chain of Thoughts and verbal reinforcement are also part of these techniques. Despite these advancements, some experts believe that with better prompting, OpenAI's o1 could still outperform Claude 3.5 Sonnet.