OpenAI GPT MODEL FAMILY
A journey from text to unified intelligence.
Chronological Evolution: One Milestone After Another
The GPT family has set the standard in the AI industry with releases that have redefined the capabilities of language models.
November 2022
Launch of **ChatGPT (GPT-3.5)**: The conversational AI that changed everything.
March 2023
**GPT-4** Launch: Enhanced reasoning skills and first steps in multimodality.
May 2024
**GPT-4o** Launch: Native multimodality with real-time audio interactions.
August 2025
Launch of **GPT-5**: A unified AI system, capable of selecting the appropriate model for each task.
The Multimodal Revolution
The ability to process and generate different types of data is one of the biggest evolutions of the GPT series, moving from a purely textual approach to a comprehensive understanding of the world.
GPT-5: A Doctoral Level Expert
OpenAI describes GPT-5 as an AI system with unprecedented capabilities across multiple domains, a true "PhD-level expert".
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PhD Level Expert
Superior performance in coding, mathematics, and visual perception.
The Jump in the Context Window
The context window, or the amount of information a model can process at once, has grown exponentially, allowing for a much deeper understanding and the handling of complex tasks.
New Features and Features
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Unified System: Smart router to use the most efficient sub-model according to the task.
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Response Modes: Choose between "Fast" or "Thought" for quick or complex answers.
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Safe-Completions: A new approach to security that offers useful answers within safe limits.
Alignment and Safety
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RLHF: Reinforcement through human feedback to improve safety and usability.
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Fewer Hallucinations: Use of advanced methods to drastically reduce incorrect answers.
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Web Navigation: Ability to access real-time information for up-to-date responses.
Availability
Access to GPT models has been democratized, reaching a wide range of users and developers.
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Access for All: GPT-5 was rolled out to all ChatGPT users (including the free tier).
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Product Integration: Strong integration into ecosystems such as Microsoft 365 Copilot and Azure AI.
