OpenAI: GPT-5.2

OpenAI: GPT-5.2

openai · Released Dec 10, 2025
67
Our Score

GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly to simple queries while spending more depth on complex tasks. Built for broad task coverage, GPT-5.2 delivers consistent gains across math, coding, sciende, and tool calling workloads, with more coherent long-form answers and improved tool-use reliability.

$1.75 / 1M Input Price
$14.00 / 1M Output Price
400,000 tokens Context Window
128,000 tokens Max Output

Capabilities

Tool Use Function Calling Vision

Architecture

ModalityText + Image + File → Text
TokenizerGPT

Performance Indices

Source: Artificial Analysis

51.3 Intelligence Index
48.7 Coding Index
65.9 Agentic Index
99 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 90.3%
Graduate-level scientific reasoning
HLE 35.4%
Humanity's Last Exam
MMLU Pro 87.4%
Multi-task language understanding
LiveCodeBench 88.9%
Live coding evaluation
SciCode 52.1%
Scientific computing
AIME 2025 99%
Competition mathematics (2025)
IFBench 75.4%
Instruction following
LCR 72.7%
Long-context reasoning
TerminalBench Hard 47%
Agentic terminal tasks
τ²-Bench 84.8%
Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID openai/gpt-5.2
Provideropenai
Release Date December 10, 2025
Context Length400,000 tokens
Max Completion128,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $1.75 $0.001750
Output $14.00 $0.014000

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

99.9%
Avg Uptime
3,344ms
Best Latency (TTFT)
48 tok/s
Best Throughput
2/2
Active Endpoints
Available via: OpenAI, Azure

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