GPT-5.1

GPT-5.1

OpenAI
GPT-5.1 Pro

GPT-5.1 Pro

OpenAI
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+

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About

GPT-5.1 is the latest update in the GPT-5 series, designed to make ChatGPT dramatically smarter and more conversational. The release introduces two distinct model variants: GPT-5.1 Instant, which is described as the most-used model and is now warmer, better at following instructions, and more intelligent; and GPT-5.1 Thinking, which is the advanced reasoning engine that’s been tuned to be easier to understand, faster on straightforward tasks, and more persistent on complex ones. Users' queries are now routed automatically to the variant best-suited to the task. The update emphasizes not just improved raw intelligence but also enhanced communication style; the models are tuned to be more natural, enjoyable to talk to, and better aligned with user intents. The system card addendum notes that GPT-5.1 Instant uses “adaptive reasoning” that lets it decide when to think more deeply before responding, while GPT-5.1 Thinking adapts its thinking time accurately to the question at hand.

About

GPT-5.1 Pro is the highest-performance version of the GPT-5.1 model family, designed for research-grade reasoning and advanced analytical workloads. It delivers deeper, more structured thinking, making it ideal for complex problem-solving across coding, science, finance, law, and technical research. Unlike the Instant and Thinking versions, GPT-5.1 Pro is built to maintain accuracy under heavy cognitive load, producing clearer logic and more reliable multi-step reasoning. Pro users also gain access to extended context windows, allowing significantly longer inputs and deeper information processing. While it supports the full range of ChatGPT features, GPT-5.1 Pro is optimized for precision, rigor, and high-stakes tasks. It is available exclusively to ChatGPT Pro and Business customers.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers, data scientists and enterprise users wanting a solution to handle both smooth interactions and deep reasoning tasks

Audience

GPT-5.1 Pro is ideal for researchers, technical professionals, and advanced users who require ChatGPT’s strongest reasoning capabilities for high-precision, high-complexity work

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1/

Company Information

OpenAI
Founded: 2015
United States
openai.com

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Categories

Categories

Integrations

C++
CSS
ChatGPT Atlas
ChatGPT Search
FastRouter
Ghost
GitHub
Go
Java
JavaScript
JetBrains AI Assistant
Kotlin
LaunchLemonade
Microsoft 365 Copilot
OpenRouter
Python
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TypeScript
Vertex AI

Integrations

C++
CSS
ChatGPT Atlas
ChatGPT Search
FastRouter
Ghost
GitHub
Go
Java
JavaScript
JetBrains AI Assistant
Kotlin
LaunchLemonade
Microsoft 365 Copilot
OpenRouter
Python
React
Transor
TypeScript
Vertex AI
Claim GPT-5.1 and update features and information
Claim GPT-5.1 and update features and information
Claim GPT-5.1 Pro and update features and information
Claim GPT-5.1 Pro and update features and information