GPT 5.2 is the premium tier of the GPT-5.2 family, applying maximum compute for the most demanding tasks where the deepest reasoning and highest quality output are required.
import { streamText } from 'ai'
const result = streamText({ model: 'openai/gpt-5.2-pro', prompt: 'Why is the sky blue?'})GPT 5.2 was released on December 11, 2025 on AI Gateway as the premium tier of the GPT-5.2 model family. It applies the maximum compute within the GPT-5.2 family to produce deeper reasoning, more thorough analysis, and higher-quality output than the standard GPT-5.2 tier.
The pro tier is designed for the subset of tasks where the standard model's capability ceiling is a binding constraint. Complex research synthesis, high-stakes analysis, expert-level content creation, and multi-factor strategic decisions all benefit from the additional reasoning depth.
With a context window of 400K tokens and the full API feature set, GPT 5.2 handles any task the GPT-5.2 family supports, it simply applies more computation to each request, producing better results on problems that merit the investment.