GPT-5.1
GPT-5.1 is OpenAI’s advanced reasoning flagship featuring adaptive thinking, native multimodality, and state-of-the-art performance in math and technical...
openaiGPT-5November 12, 2025About GPT-5.1
Learn about GPT-5.1's capabilities, features, and how it can help you achieve better results.
Reasoning Architecture
GPT-5.1 features a System 2 thinking architecture. This allows the model to adjust its processing time based on the complexity of the query. For mathematical proofs, it applies deep logical deductions, while simple conversational tasks maintain low latency. The adaptive reasoning system ensures compute is allocated where it provides the most value.
Multimodal Performance
The model uses an omni multimodal framework for text and vision inputs. It provides 84% lower latency on enterprise document extraction tasks compared to its predecessor. Improved memory retention ensures that context is maintained throughout long-horizon agentic workflows, making it suitable for large-scale software engineering projects.
Personalization Systems
A new engine enables tone and trait steering. Users can configure the model to be professional, casual, or expressive through explicit system instructions. These traits allow developers to deploy bots that better match specific brand identities and user preferences without extensive few-shot prompting.
Use Cases
Discover the different ways you can use GPT-5.1 to achieve great results.
Agentic Software Engineering
The model automates complex refactors across large codebases using high-accuracy reasoning.
PhD-Level Research
It solves intricate problems in biology and physics that require verified multi-step deductions.
Enterprise Document Analysis
The system extracts structured data from massive sets of tabular documents with high visual precision.
Personalized Customer Support
Developers deploy bots with specific brand traits like quirky or professional to match user sentiment.
Mathematical Problem Solving
The model utilizes its 99.6% AIME scores to verify proofs and tutor students in advanced mathematics.
Vision-Based Business Intelligence
It analyzes complex charts and financial reports to generate executive summaries with visual context.
Strengths
Limitations
API Quick Start
openai/gpt-5.1
import OpenAI from 'openai';
const openai = new OpenAI();
const response = await openai.chat.completions.create({
model: "gpt-5.1",
messages: [{ role: "user", content: "Analyze the security of this smart contract." }],
reasoning_effort: "high",
});
console.log(response.choices[0].message.content);Install the SDK and start making API calls in minutes.
Community Feedback
See what the community thinks about GPT-5.1
“GPT-5.1 etc in Codex is still the best reviewer for planning and code review tasks.”
“Our evals found GPT-5 performed up to 190% better than other leading models in complex reasoning.”
“GPT-5.1 is better calibrated to prompt difficulty, consuming far fewer tokens on easy inputs.”
“This release is all about the personality and making ChatGPT feel less clinical and sterile.”
“The 400k context window is a lifesaver for our entire repo analysis.”
“Still no native audio is a bummer, but the reasoning gains are real.”
Related Videos
Watch tutorials, reviews, and discussions about GPT-5.1
“GPT 5.1 is here. It is faster. It is more accurate. It is more conversational.”
“For the first time, GPT 5.1 Instant can use adaptive reasoning to decide when to think.”
“The logic here is significantly better than the standard GPT 5 model.”
“It manages to maintain a warmer tone than we saw in the previous preview versions.”
“If you are a developer, the extended prompt caching is going to save you a ton of money.”
“It's even more personalizable than ever before.”
“The tone sounds a lot more natural... 5.1 is much better for energy.”
“I noticed it doesn't hallucinate as much during complex workflow steps.”
“The speed of the instant mode is almost equivalent to GPT 4o mini but with more smarts.”
“Personalization features mean you can actually tell it to stop being so formal.”
“This is probably one of the most relaxed iterative updates to a Frontier AI model.”
“It produced a successful bumper car game result compared to GPT5 thinking.”
“The vision processing on handwritten documents is noticeably sharper.”
“I think the reasoning effort toggle is the best feature for managing API costs.”
“It finally feels like a model you can talk to without it sounding like a textbook.”
Supercharge your workflow with AI Automation
Automatio combines the power of AI agents, web automation, and smart integrations to help you accomplish more in less time.
Pro Tips
Expert tips to help you get the most out of GPT-5.1 and achieve better results.
Adjust Reasoning Effort
Use the reasoning_effort parameter to set the thinking level to high for math but none for simple chat to save on latency.
Leverage Large Context
Utilize the 400k context window for entire project folders since the model retains information well in long prompts.
Tone Steering
Enable tone traits in your system instructions to make the model sound less clinical and more like a teammate.
Prompt Caching
Take advantage of 24-hour prompt caching to reduce costs when running repetitive agentic loops on the same codebase.
Testimonials
What Our Users Say
Join thousands of satisfied users who have transformed their workflow
Jonathan Kogan
Co-Founder/CEO, rpatools.io
Automatio is one of the most used for RPA Tools both internally and externally. It saves us countless hours of work and we realized this could do the same for other startups and so we choose Automatio for most of our automation needs.
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
We've tried dozens of automation tools, but Automatio stands out for its flexibility and ease of use. Our team productivity increased by 40% within the first month of adoption.
David Park
Founder, DataDriven.io
The AI-powered features in Automatio are incredible. It understands context and adapts to changes in websites automatically. No more broken scrapers!
Emily Rodriguez
Marketing Director, GrowthMetrics
Automatio transformed our lead generation process. What used to take our team days now happens automatically in minutes. The ROI is incredible.
Jonathan Kogan
Co-Founder/CEO, rpatools.io
Automatio is one of the most used for RPA Tools both internally and externally. It saves us countless hours of work and we realized this could do the same for other startups and so we choose Automatio for most of our automation needs.
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
We've tried dozens of automation tools, but Automatio stands out for its flexibility and ease of use. Our team productivity increased by 40% within the first month of adoption.
David Park
Founder, DataDriven.io
The AI-powered features in Automatio are incredible. It understands context and adapts to changes in websites automatically. No more broken scrapers!
Emily Rodriguez
Marketing Director, GrowthMetrics
Automatio transformed our lead generation process. What used to take our team days now happens automatically in minutes. The ROI is incredible.
Related AI Models
Qwen3.5-397B-A17B
alibaba
Qwen3.5-397B-A17B is Alibaba's flagship open-weight MoE model. It features native multimodal reasoning, a 1M context window, and a 19x decoding throughput...
Kimi K2.5
Moonshot
Discover Moonshot AI's Kimi K2.5, a 1T-parameter open-source agentic model featuring native multimodal capabilities, a 262K context window, and SOTA reasoning.
Grok-4
xAI
Grok-4 by xAI is a frontier model featuring a 2M token context window, real-time X platform integration, and world-record reasoning capabilities.
Claude Opus 4.5
Anthropic
Claude Opus 4.5 is Anthropic's most powerful frontier model, delivering record-breaking 80.9% SWE-bench performance and advanced autonomous agency for coding.
Gemini 3.1 Flash-Lite
Gemini 3.1 Flash-Lite is Google's fastest, most cost-efficient model. Features 1M context, native multimodality, and 363 tokens/sec speed for scale.
Claude Sonnet 4.6
Anthropic
Claude Sonnet 4.6 offers frontier performance for coding and computer use with a massive 1M token context window for only $3/1M tokens.
GLM-5
Zhipu (GLM)
GLM-5 is Zhipu AI's 744B parameter open-weight powerhouse, excelling in long-horizon agentic tasks, coding, and factual accuracy with a 200k context window.
Gemini 3 Flash
Gemini 3 Flash is Google's high-speed multimodal model featuring a 1M token context window, elite 90.4% GPQA reasoning, and autonomous browser automation tools.
Frequently Asked Questions
Find answers to common questions about GPT-5.1