OpenAI's new o3 system has achieved a breakthrough score of 75.7% on the Semi-Private Evaluation set of the ARC-AGI-Pub benchmark, and 87.5% with high-compute configuration. This represents a significant leap forward in AI capabilities, demonstrating novel task adaptation ability. The o3 model uses a form of LLM-guided natural language program search, which overcomes the limitation of traditional LLMs in adapting to new tasks. The achievement is seen as a major milestone, but it is also noted that the model is not yet considered a true Artificial General Intelligence (AGI).