Today, GPT-5 is officially launched. It is now being rolled out across various platforms, including ChatGPT, the API, and Microsoft products like Microsoft 365 Copilot.
Key details about the launch and the new model:
Launch Date: The official announcement and rollout began on August 7, 2025. OpenAI teased the launch with a livestream scheduled for that day.
Unified System: GPT-5 consolidates OpenAI's previous separate models into a single, more capable system. This is intended to simplify the user experience and enhance performance.
Improved Capabilities: The model is expected to be significantly more powerful than its predecessors, with advancements in areas like logical reasoning, multi-step tasks, and multimodal processing. It is engineered to handle text, images, and other files in a single conversation thread.
Lower Hallucination Rate: OpenAI claims GPT-5 is designed to be more accurate and provide confidence scores on its outputs, aiming for a lower rate of "hallucinations."
Versions: The model is available in different variants: GPT-5 (high-end), GPT-5 mini (a smaller, lower-cost version), and GPT-5 nano (a light, API-only version). There is also a GPT-5-chat variant.
Availability: The rollout is happening in phases, with priority access for paid users (ChatGPT Plus, Team, and Enterprise). Free-tier users are also expected to gain access.
Sam Altman's Comments: OpenAI CEO Sam Altman has made several comments about the new model's power, even comparing its development to the Manhattan Project and describing a feeling of "uselessness" when testing it.
