But yet there are no confirmations regarding that will it be a separate service by Google or it will be integrated in it's search engine.
By the end of 2023 we are going to se a tough competition in the search engine market as new competitors are joining the market.
It is also confirmed that Microsoft is partnering with ChatGPT and integrating it in it's search engine called 'Bing' (more on that here) So Google soon is going to face a tough competition in the search engine market and so Google will soon release it's own ChatGPT like service.