PRODUCT DESCRIPTION: To the best of my knowledge, OpenAI has not yet released a GPT-4 model. As of my knowledge cutoff date of September 2021, there had been no official announcement from OpenAI regarding the release of GPT-4. However, OpenAI has stated that they plan to continue developing and improving the GPT series of models, so it's possible that a GPT-4 or a successor model may be released in the future.

To the best of my knowledge, OpenAI has not yet released a GPT-4 model. As of my knowledge cutoff date of September 2021, there had been no official announcement from OpenAI regarding the release of GPT-4. However, OpenAI has stated that they plan to continue developing and improving the GPT series of models, so it's possible that a GPT-4 or a successor model may be released in the future.