At a Glance · AI-generated

OpenAI released GPT-4.1 to its API in April 2025, followed by the o3 and o4-mini models. Throughout spring and summer, the company introduced complementary tools including Codex for code generation, the o3 Operator for task automation, and voice agent capabilities. By mid-July, OpenAI launched ChatGPT Agent with a system card, and subsequently added study mode and personal agents powered by the Realtime API, expanding AI capabilities across code development, financial analysis, and enterprise automation.