OpenAI: GPT-5.2 Pro

proprietary

GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro.

Intelligence
Reasoning
Speed
Context
400K
Max output
128K
Input price
$21/1M tokens
Output price
$168/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming

Details

Model IDopenai/gpt-5.2-pro
Provider OpenRouter
Creator OpenAI
Familygpt-5.2
Licenseproprietary
Statusactive
Typechat
Input modalitiesimage, text
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window400K tokens
Max input—
Max output128K tokens
Reasoning tokensYes
Knowledge cutoff
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$21
Output
$168
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: gpt-5.2

ModelContextMax outPricing
OpenAI: GPT-5.2 (batch)400K128K$0.88$7
OpenAI: GPT-5.2 Chat128K32K$1.75$14
OpenAI: GPT-5.2-Codex400K128K$1.75$14
OpenAI: GPT-5.2400K128K$1.75$14
OpenAI: GPT-5.2 Pro (batch)400K128K$10.5$84
OpenAI: GPT-5.2 Pro400K128K$21$168

API

GET/v1/models/openrouter/openai/gpt-5.2-pro