At a Glance · AI-generated

OpenAI launched ChatGPT in November 2022 and progressively expanded its core capabilities through 2025. The platform added multimodal features including vision, audio input and output, and image generation via DALL·E 3 integration. OpenAI introduced advanced tools such as custom instructions, memory functionality, data analysis improvements, and enhanced data management controls. The company released successively more capable models—GPT-4, GPT-4o, and GPT-4o mini—while publishing technical documentation addressing performance characteristics and safety considerations.