ChatGPT Pro is a subscription product launched by OpenAI at a monthly fee of $200, providing scalable access to OpenAI's most advanced models and tools. The plan includes unlimited access to the OpenAI o1 model, as well as o1-mini, GPT-4o, and advanced voice capabilities. The o1 pro mode is a version of o1 that employs more computational resources to enable deeper thought and provide better answers, particularly when addressing the most challenging problems. ChatGPT Pro is designed to enhance productivity for researchers, engineers, and other individuals who utilize research-level intelligence in their daily work while remaining at the cutting edge of AI advances.