GPT-5.2 Thinking

OpenAI

Reasoning-optimized GPT-5.2 variant excelling at coding, document analysis, math, and planning. State-of-the-art on GDPval benchmark, beats top professionals on 70.9% of knowledge work tasks.

Text Generation API GPT Family v5.2

Documentation Back to Models

Parameters

-

params

Context Window

400K

tokens

Max Output

128K

tokens

Input Price

$1.75

per 1M tokens

Output Price

$14

per 1M tokens

GPT Family 18 models

The full GPT line by generation — pricing and capabilities vary across the family.

GPT-5.5

GPT-5.5 Instant

Everyday assistant, low-latency chat

Hardest reasoning, research, complex coding

Agentic workflows, coding, research, data analysis

GPT-5.4

Complex reasoning, research, advanced analysis

General-purpose, reasoning, multimodal, document editing

GPT-5.3

Code generation, software engineering, reasoning

GPT-5

GPT-5.2 Thinking Current

$1.75 / $14

in / out · 1M

Dec 2025

GPT-5.2 Instant

Multimodal reasoning, reduced hallucinations

GPT-5.1

GPT-5.1 Instant

Fast, warm responses, customizable tone

GPT-5.1 Thinking

Complex reasoning, persistent problem-solving

GPT-4

GPT-4o (Nov 2024)

Multimodal, fast, versatile

Complex tasks, vision, analysis

Enterprise Azure integration

o1

Complex reasoning, math, code

STEM reasoning, efficient

GPT-3.5

Fast, cost-effective

Capabilities

👁️

Vision

⚡

Function Calling

📋

JSON Mode

🌊

Streaming

💬

System Prompt

🖥️

Code Execution

🔍

Web Search

🔌

MCP Support

Details

Release Date: December 11, 2025
Knowledge Cutoff: August 31, 2025
Source: API
API Key Required: Yes
License: Proprietary
Model ID: gpt-5.2-thinking

Last updated: December 12, 2025