Recipe ·
GPT-5.2 Pro
GPT-5.2 is OpenAI's latest flagship large language model, released on December 11, 2025. Succeeding GPT-5.1, it is a family of three large language models within the GPT series. It comes in two modes: GPT-5.2 instant and GPT-5.2 thinking, with the latter being a reasoning model. A GPT-5.2 Pro model
Ingredient list
Invented by OpenAI · 2022-03 · Velocity 4y
“OpenAI's alignment approach for flagship models is built on RLHF, as documented for GPT-4 and previous models.”
alignmenthighInvented by Google · 2022-01 · Velocity 4y
“GPT-5.2 thinking mode is explicitly designed for step-by-step reasoning, a core CoT capability.”
reasoninghighInvented by Google · 2021-09 · Velocity 4y
“As a flagship OpenAI model, it follows the established instruction-following paradigm refined from InstructGPT and GPT-4.”
traininghighInvented by Google · 2017-06 · Velocity 9y
“GPT-5.2 is a direct successor in the GPT series, which is fundamentally based on the Transformer architecture.”
architecturehigh
This recipe is part of the gentic.news Deployment Atlas. Every ingredient has an origin paper + evidence. Methodology is public. Dataset is CC BY 4.0.