OpenAI reaches one billion active users as it cuts GPT-5.6 prices by up to 80%

OpenAI slashed prices for two of its GPT-5.6 models by up to 80%, one day before announcing it now serves over one billion active users and two million businesses. The cuts were made possible by efficiency gains, including AI-assisted GPU optimization that reduced serving costs by 20%. However, despite $13 billion in revenue in 2025, OpenAI lost $21 billion, and analysts warn the lower prices could squeeze margins even further.