As of now, OpenAI has not officially released any information about GPT-4. Therefore, it’s safe to assume that ChatGPT Plus does not currently use GPT-4.

The current version of ChatGPT Plus is built on GPT-3, which stands for “Generative Pre-trained Transformer 3.” This powerful language model, developed by OpenAI, has been touted for its ability to generate human-like text and has been used in a wide range of applications, including chatbots, content generation, and language translation.

While GPT-3 has been highly successful and influential in the field of natural language processing, there has been much speculation about the potential release of GPT-4. Many researchers and industry experts anticipate that OpenAI will continue to improve and iterate upon its language models, potentially leading to the development of GPT-4 in the future.

One can imagine that a potential GPT-4 would likely build upon the strengths of GPT-3 by improving its language understanding, generating more coherent and contextually relevant responses, and potentially reducing biases and ethical concerns present in previous models. However, until OpenAI officially announces the release of GPT-4, it is purely speculative.

For now, users can enjoy the robust capabilities of ChatGPT Plus, which utilizes GPT-3 to provide conversational, informative, and engaging interactions. With its ability to understand and respond to a wide range of prompts, ChatGPT Plus has already demonstrated the potential of advanced language models.

As the field of natural language processing continues to evolve, it’s exciting to consider the possibilities that future iterations of GPT models may bring. Whether it’s GPT-4 or other advancements in the field, these developments are sure to have a significant impact on how we interact with and utilize language processing technology.