How to set ChatGPT as your default search engine in Safari
Starting from iOS 18.1, you can set ChatGPT as the default search engine in Safari. Here's how to use the LLM service for your browser queries.
With Apple Intelligence in iOS 18, Apple provides OpenAI's ChatGPT integration into several features of iOS. 
OpenAI also has a ChatGPT app (Free) which you can download from the App Store.
Setting up ChatGPT as Default Search Engine
Once you have ChatGPT installed in iOS, you can use it as your default search engine within Safari.
While Apple currently doesn't provide a direct way to set OpenAI as your default search engine in iOS specifically, you can effectively enable it as the default for searches in Safari. It does require a few more steps than the typical changing of the default search.
Now if you run Safari and type text in its search bar, it will ask ChatGPT to perform the search for you. This is a great addition to iOS and Safari as it makes searching via ChatGPT seamless and easy. Hopefully we'll be seeing more AI integration options from Apple in the near future.
It seems a bit excessive to fire up an entire LLM for a simple search query. The power consumption is massive and it's slower for the end-user, so ideally there should be an easy to reach choice button for each search query.
First off, I was quite excited to be able to integrate ChatGPT into my Safari browser. But then I remembered that other than Brave - which I have been using for years - I do not use any other browser, especially Chrome or Safari which track queries and then on sell the data to brokers. 
With Brave's Private mode all ads, tracking etc are blocked.
So, I guess, I will have to do without ChatGPT integrated into my Safari browser, which, incidentally, I deleted moons ago.
