There exist a fair amount of programs or web services to automatically master music. Is mastering with some automated mastering programs/services as good as mastering by professional humans nowadays? If that depends on the music genre, my main interest is electronic music.
No. There is actually no true AI in the world at this time. Everything that is called “AI” is actually just machine learning. These are systems that are given basic algorithms and then trained on a library of data. The algorithm allows the system to synthesize new results based on partially matching the training data using the specified parameters.
While sometimes machine learning systems can produce very human-seeming results, they are in many ways quite limited. The limits are the result of the training data sets and the parameters extracted from the training data.
Actual intelligence can synthesize new parameters when presented with training data that is different from the other data. Also actual intelligence can dynamically ignore some data in a data set by judging it to be specious or irrelevant.
In short, computers still cannot reproduce the sensitivity and judgment of trained and experienced humans. Those automated mastering services are mainly cash grabs, trying to find unusual ways to monetize machine learning.
You be the judge.
Will AI be as good? Well one should ask ones target audience. However that is not a thing that can be done preemptively. Only you can judge how much an AI can enhance your work.
Mastering is a subjective art where quality is as much kudos as professionalism. Can you pass of an AI's work as professionally mastered (implied)?
Here is "...so you can be the judge of whether AI beats real ears in an actual mastering studio." It compares 4 online (AI) mastering services against an experienced professional human, with examples for each product.
Listen to the samples and "You be the judge".