Hey there i am learning the course <langchain and vector databese in production> and I found i cannot call gpt-4 model whereas the course can. so may i ask if there's any change on OpenAI for this gpt-4 model? cuz I cannot find any news about it and the OpenAI document also saying 'gpt-4' somewhere.
Anyone help me out ? Thanks.
By the way I am a ChatGpt Plus user.