Overview

• GPT-5 merges OpenAI’s GPT and o-model families into a single architecture to streamline performance and simplify user choices.
• The launch lineup includes the full GPT-5 alongside stripped-down Mini and Nano options available through ChatGPT and the API.
• All ChatGPT users will receive unrestricted access to the base GPT-5 model, while paid subscribers unlock an enhanced version with Deep Research capabilities.
• Microsoft’s Copilot will integrate GPT-5 to leverage its automated model and tool selection for more intuitive responses.
• Sam Altman cautioned that GPT-5 may require several months of real-world usage before reaching peak ‘Gold-Level’ performance.