GPT-5.2 Pro
GPT-5.2 Pro is OpenAI's 2025 flagship reasoning model featuring Extended Thinking for SOTA performance in mathematics, coding, and expert knowledge work.
openaiGPT-5December 11, 2025Try GPT-5.2 Pro Free
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About GPT-5.2 Pro
Learn about GPT-5.2 Pro's capabilities, features, and how it can help you achieve better results.
A New Frontier in Reasoning
GPT-5.2 Pro is OpenAI's state-of-the-art reasoning model designed specifically for high-stakes intellectual tasks. Released in late 2025, it introduces an 'extended thinking' mode that allows the model to process complex problems for extended durations to ensure logical consistency. It is widely considered the industry leader for professional mathematical proofs and advanced competitive programming, frequently solving problems that previous generations found impossible.
Technical Precision and Output
The model is characterized by its strict adherence to complex instructions and significantly lower hallucination rates in logical inference compared to its competitors. It maintains a highly organized and professional conversational tone, although it is noted for a 'colder' interaction style and increased latency due to its heavy reasoning overhead. It has become a staple for developers requiring mechanical codebase-wide checks and researchers requiring PhD-level precision across its massive 400,000 token context window.
Expert-Level Performance
Beyond benchmarks, GPT-5.2 Pro is the first model to consistently outperform human industry experts with over 14 years of experience on specialized work task benchmarks. Its ability to generate tens of thousands of lines of functional code in a single pass marks a significant shift away from the 'laziness' issues observed in earlier models, making it the primary choice for complex agentic workflows.
Use Cases for GPT-5.2 Pro
Discover the different ways you can use GPT-5.2 Pro to achieve great results.
Olympiad Mathematics
Excels at solving professional-level and IMO math problems with long-form proofs.
Mechanical Coding Tasks
Efficiently processes massive lists of mechanical code updates and checks without laziness.
Logical Inference
Performs deep reasoning for complex world-building and alternate history analysis.
Technical Research
Accurately retrieves and synthesizes niche technical data from specialized documentation.
Instruction Following
Strictly executes highly complex or counter-intuitive user requirements with extreme precision.
Creative Writing
Capable of producing high-density creative writing that mimics the texture of literary classics.
Strengths
Limitations
API Quick Start
openai/gpt-5.2-pro
import OpenAI from 'openai';
const openai = new OpenAI();
async function main() {
const completion = await openai.chat.completions.create({
model: 'gpt-5.2-pro',
messages: [
{ role: 'user', content: 'Prove the existence of infinite primes using the extended thinking mode.' }
],
reasoning_effort: 'high'
});
console.log(completion.choices[0].message.content);
}
main();Install the SDK and start making API calls in minutes.
What People Are Saying About GPT-5.2 Pro
See what the community thinks about GPT-5.2 Pro
"GPT-5.2-codex xhigh is a beast that sweeps through your entire codebase and leaves nothing pending."
"GPT Pro is absolutely SOTA in this area [Mathematics]. It can sometimes even solve the third and sixth problems."
"GPT-5.2 Pro continues to blow me away... I got back a rigorous analysis in a professional Excel workbook."
"This model is like a very intelligent, creative person who is unreliable but brilliant."
"5.2's hallucinations are actually less than Opus, and it can very strictly execute my requirements."
"The reasoning overhead is massive but the results for mathematical proofs are literally Nobel-tier."
Videos About GPT-5.2 Pro
Watch tutorials, reviews, and discussions about GPT-5.2 Pro
“This is the first time in history that a human is outperformed in average... by an AGI.”
“GPT 5.2 thinking sets a new state-of-the-art score 70%... our first model that performs at or above human expert level.”
“It is a singular model that outperforms 44 real-world US occupations.”
“The internal reasoning trace is finally showing signs of genuine self-correction.”
“We are looking at a model that doesn't just predict text, it simulates logic.”
“Generating 24,000 lines of code in a single response is just unheard of.”
“There is now a selectable thinking time option here... allowing for an 'Extended Thinking' mode.”
“This model scored higher than all the other models on the Mensa Norway test... IQ 145 to 147.”
“The context window retrieval is essentially perfect even at 400k tokens.”
“It's not just more data, it's a completely different architecture for logical depth.”
“Beating human experts on GDP-Val over 50% of the time is a scary milestone for the labor market.”
“Everything just works... I'm really impressed by the coding abilities of GPT 5.2.”
“The canvas feature makes debugging 3JS code instantaneous.”
“OpenAI has finally solved the 'laziness' problem that plagued GPT-4.”
“This is the most 'professional' sounding AI I have ever interacted with.”
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Pro Tips
Expert tips to help you get the most out of this model and achieve better results.
Extended Thinking
Use the 'extended thinking' mode for math or logic problems where accuracy is more critical than speed.
Codex Integration
Leverage its high performance in specialized environments like Codex for mechanical codebase management.
Verify Premises
If the first premise of a long response is wrong, interrupt and correct it immediately.
Iterative Refinement
If initial code fails, provide the console error back for a highly effective second-try fix.
Testimonials
What Our Users Say
Join thousands of satisfied users who have transformed their workflow
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Co-Founder/CEO, rpatools.io
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Co-Founder/CEO, rpatools.io
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Mohammed Ibrahim
CEO, qannas.pro
I have used many tools over the past 5 years, Automatio is the Jack of All trades.. !! it could be your scraping bot in the morning and then it becomes your VA by the noon and in the evening it does your automations.. its amazing!
Ben Bressington
CTO, AiChatSolutions
Automatio is fantastic and simple to use to extract data from any website. This allowed me to replace a developer and do tasks myself as they only take a few minutes to setup and forget about it. Automatio is a game changer!
Sarah Chen
Head of Growth, ScaleUp Labs
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David Park
Founder, DataDriven.io
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Frequently Asked Questions
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