OpenAI launched its most advanced language model Thursday with the release of GPT-5, a flagship product the company says will enhance ChatGPT as it reportedly nears a $500 billion valuation and aims to stave off competitors in Google, Anthropic and more.

The company has often claimed its technology is advancing quickly toward the point it will be able to match or exceed humans at every possible task. Executives said in a news briefing before GPT-5’s release that it does not perform at that level.

Pro, GPT-5 mini, and GPT-5 nano—what the company calls its "best AI system yet," with availability across all ChatGPT tiers, including free users. The new model family arrives with claims of reduced confabulations,