OpenAI has officially unveiled GPT-5, its most advanced AI model to date, coinciding with ChatGPT’s weekly user base surpassing 700 million globally. Marketed as OpenAI’s “smartest, fastest, most useful model yet,” GPT-5 represents a significant leap in embedding AI intelligence into core business operations.
The company highlighted major improvements in reasoning, accuracy, speed, and structured thinking. Several large organisations, including BNY Mellon, California State University, Figma, Intercom, Lowe’s, Morgan Stanley, SoftBank, and T-Mobile, have already begun deploying GPT-5-powered tools across departments.
More than 5 million users subscribe to ChatGPT’s business products, according to OpenAI. Sean Bruich, Senior Vice President of AI & Data at Amgen, praised GPT-5 for its increased accuracy and ability to navigate complex contexts with higher reliability.
Key upgrades include faster, more precise responses; improved understanding of context and ambiguity; advanced reasoning; and enhanced API performance for agent-based applications. These features make GPT-5 ideal for critical business uses such as coding, customer engagement, research, and enterprise decision-making.
GPT-5 is now available to ChatGPT Team customers, with Enterprise and Education clients gaining access next week. Developers can also use the model via the live OpenAI API. A premium GPT-5 Pro version, offering deeper reasoning and more reliable outputs, is slated for imminent release.
The launch comes amid escalating investments by leading AI firms — Alphabet, Meta, Amazon, and Microsoft — which together expect to spend nearly $400 billion this fiscal year on AI infrastructure. OpenAI itself is reportedly negotiating employee cash-outs at a $500 billion valuation, up from $300 billion, with top AI talent commanding $100 million signing bonuses.
