GPT-5.2 Pro

ModelActive

by OpenAI · family “gpt-pro”

GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,... (description from the OpenRouter listing)

in: imagein: textin: fileout: textReasoningTool useStructured output

Epoch Capabilities Index

155.4 #23 of 268

90% CI 152.8 – 158.3

Listing ↗

Released

11 Dec 2025

Context window

400K tokens

Max output

128K tokens

Input $ / 1M tokens

$21.0

Output $ / 1M tokens

$168.0

Cached input $ / 1M

Unknown

Each benchmark shown separately with its own source

Benchmark results (5)

All benchmarks

Benchmark	Domain	Score	vs best recorded	Setting	Run	Source
FrontierMath-Tiers-1-3-v2-Private	math	74.0% ±2.6	79%	xhigh	13 Jun 2026	Epoch ↗
FrontierMath-Tier-4-v2-Private	math	46.0% ±7.8	47%	xhigh	13 Jun 2026	Epoch ↗
ARC-AGI-2	reasoning	54.2%	57%	high	—	External ↗
SimpleBench	reasoning	57.4%	70%	—	—	External ↗
ARC-AGI	reasoning	90.5%	92%	xhigh	—	External ↗

Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.

API list price over time

Price history

$ per 1M tokens

10 observations (OpenRouter listing + Internet Archive snapshots). History accumulates with every ingest run; a single point means no change has been observed yet.