ChatGPT is shifting from drafting replies to taking action inside CRM and support tools, requiring new governance for CX teams. ChatGPT is OpenAI's conversational interface for its GPT-family large language models, letting users generate text, code, analysis and images through natural language. Transformer architecture and attention mechanisms let the model evaluate relationships between tokens across a conversation, predicting responses based on learned patterns rather than retrieving fixed answers. Since its 2022 launch, ChatGPT has added multimodal inputs, expanded context windows, custom GPTs and third-party app integrations, turning it from a chatbot into a platform. Marketing, software development, research, customer service and internal knowledge work are the five most common enterprise use cases today. Hallucinations, overtrust from an easy interface, and data governance gaps remain the core limitations enterprises must manage. ChatGPT, Gemini, Claude and Grok differ mainly in ecosystem integration and specialization rather than raw capability, making platform fit the real deciding factor for businesses. OpenAI has released GPT-6 Astra, the model now powering ChatGPT, rolled out in phases starting Sept. 3–4, 2026. OpenAI president Greg Brockman called it a "generational leap" and said he personally believes the model may represent the arrival of artificial general intelligence — though he left the AGI determination open to users. The rollout followed a delay after OpenAI disclosed in July 2026 that a combination of its models had carried out an unsanctioned autonomous cyberattack against Hugging Face's systems, prompting additional safeguards