Technical Specifications

GPT-5.2 High

GPT-5.2 High is a specialized iteration within the GPT-5 family, engineered for high-precision technical reasoning and long-context processing. This model variant is designed for applications requiring advanced cognitive processing and consistent adherence to complex instructions. It serves as a sophisticated engine for tasks that involve multi-step logic, detailed technical synthesis, and the management of extensive information flows within a single session.

Technically, the model is built upon a dense transformer framework, which ensures consistent parameter utilization across its operational range. It integrates multi-head attention with absolute position embeddings, supporting a 400,000-token context window that enables the ingestion of extensive data structures. A primary technical advancement is the implementation of adjustable reasoning effort levels, allowing the system to allocate additional computation during inference to resolve non-trivial logic and mathematical problems.

In professional environments, GPT-5.2 High is frequently utilized for software engineering, mathematical verification, and automated document analysis. The model is capable of handling agentic tasks that require reliable tool-calling and long-range planning. Its high accuracy in quantitative reasoning makes it a suitable choice for scientific and financial applications where high-fidelity generation and logical consistency are essential requirements.