Researchers from Beijing Jiaotong University developed 'O1-CODER' to replicate OpenAI's o1 model for coding tasks.O1-CODER incorporates reinforcement learning and Monte Carlo Tree Search techniques to improve System-2 thinking.The model trains a Test Case Generator (TCG) to standardize code testing and learns to reason through the coding process.Other models like Gemini 2, DeepSeek-R1-Lite-Preview, Marco-o1, and QwQ-32b have also emerged as alternative competitors.