o3
Advanced reasoning: 200K context, adaptive effort, strong STEM benchmarks, safer alignment.
Advanced reasoning model breakthrough achieving exceptional performance across mathematics, coding, and complex reasoning. Demonstrates ARC AGI breakthrough and exceptional performance on professional tasks. Supports 200K token context window for extensive documentation analysis. Features adaptive reasoning with multiple effort levels balancing speed and accuracy. Scores 96.7% on AIME 2025 and 87.7% on GPQA Diamond benchmarks. Implements deliberative alignment for enhanced safety and jailbreak resistance. Available to ChatGPT subscribers enabling advanced problem-solving capabilities. Offers cost-effective reasoning tier compared to o3-pro. Suitable for research, development, and professional analysis requiring strong reasoning capabilities. Significantly outperforms previous reasoning models on benchmarks.
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