OpenAI: GPT-5.2

OpenAI: GPT-5.2

openai · Released Dec 10, 2025 Professional
Intelligence #26 / 557
81.1 Our Score
Speed #160 / 259
66.7 tokens / sec
Input #465 / 560
$1.75 per 1M tokens
Output #508 / 560
$14.00 per 1M tokens
Context #77 / 560
400,000 tokens

Analysis Summary

OpenAI: GPT-5.2 sits in the Professional tier on our leaderboard, ranked #26 of 557 published models on overall intelligence. At $1.75 input and $14.00 output per 1M tokens, it is among the most expensive on the market. It offers a generous context window for extended reasoning and code review and supports tool use, function calling, vision, and reasoning.

Editorial notes

GPT-5.2 from OpenAI delivers excellent reasoning, strong agentic performance, vision and file support, a 400K context window, and broad tool use capability across a well-supported platform.

Assessed May 14, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence8.2Technical8.1Value6.5Content8
Intelligence 8.2/10
Technical 8.1/10
Content 8/10
Value 6.5/10

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..

Capabilities

Tool Use Function Calling Vision

Performance Indices

Source: Artificial Analysis

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

Benchmark Scores

Intelligence

GPQA Diamond 90.3% Graduate-level scientific reasoning
HLE 35.4% Humanity's Last Exam
MMLU Pro 87.4% Multi-task language understanding
AIME 2025 99% Competition mathematics (2025)
SciCode 52.1% Scientific computing

Technical

LiveCodeBench 88.9% Live coding evaluation
TerminalBench Hard 47% Agentic terminal tasks
τ²-Bench 84.8% Conversational agent benchmark

Content

IFBench 75.4% Instruction following
LCR 72.7% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does OpenAI: GPT-5.2 stack up?

Compare side-by-side with other professional models.

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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.

98.2%
Avg Uptime
2,780ms
Best Latency (TTFT)
45 tok/s
Best Throughput
2/2
Active Endpoints
Available via: Azure, OpenAI

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