What is GPT-5.1 Instant and Thinking?
GPT-5.1 Instant and Thinking are trained using the same stack as OpenAI's reasoning models, so they score higher on factuality and complex problem-solving than GPT-5, while also introducing a more natural, conversational tone. We think many people will find that GPT-5.1 does a better job of bringing IQ and EQ together, but one default clearly can’t meet everyone’s needs.
Problem
Users experienced limitations with previous ChatGPT versions (e.g., GPT-5) in factual accuracy, complex problem-solving, and conversational naturalness, leading to less reliable or engaging interactions.
Solution
An AI language model tool enabling smarter, more conversational interactions with improved factuality and IQ/EQ balance, exemplified by GPT-5.1 variants like "Instant" and "Thinking" optimized for different tasks.
Customers
Developers, AI researchers, and content creators requiring advanced natural language processing for applications like chatbots, research analysis, or creative writing.
Unique Features
Combines high IQ (factual accuracy, problem-solving) with EQ (natural tone), customizable personalities, and specialized model variants for distinct use cases.
User Comments
Enhanced intelligence and responsiveness
More human-like conversations
Occasional inconsistencies in outputs
High computational costs
Better task adaptability
Traction
Over 100 million weekly active ChatGPT users globally (OpenAI, 2024)
Reportedly generating $2 billion annualized revenue (2023)
Market Size
The global generative AI market is projected to reach $1.3 trillion by 2032 (Grand View Research, 2024), with enterprise adoption driving growth.
