Media Bias occurs when journalists or news organizations let their own opinion affect the news that they report, and how they report it. Journalistic standards and practices are designed to minimize implicit biases, but nothing humans produce is entirely free of bias. This is also true for generative AI, as it, too, was created by humans and continues to learn from humans. Therefore, media bias isn't necessarily a bad thing, but hidden bias can mislead, manipulate, and even deceive. This is why it is important to learn how to detect media bias in the news and information that we consume.
Partisan
A type of bias in which a journalist’s political views affect news coverage.
Demographic
A type of bias in which race, gender, ethnicity or other factors — such as culture or economic class — affect news coverage.
Corporate
A type of bias in which the business or advertising interests of a news outlet, or its parent company, influence how — or even whether — a story is reported.
"Big story"
A type of bias in which journalists’ perceptions of an event or development as a major, important story can cause them to miss key details and misrepresent key facts.
Neutrality
A type of bias in which a journalist or news outlet tries so hard to avoid appearing biased to anyone that the coverage actually misrepresents the facts.
~ News Literacy Project
For example, this image shows Partisan Bias in the forms of Word Choice or Tone as well as Image Selection.
Let’s look a little closer at Partisan Bias. It is a big one in our current society as most media outlets seem to align with one political party or another. Sometimes the media even seems to be driving politics through their coverage. This type of biased coverage can be both good and bad. It may repeat and normalize misinformation spread by a politician or a political party. Conversely, it may reveal misinformation from an opposing viewpoint. Either way, people seem to enjoy viewing media that agrees with their world view. (Confirmation Bias)
There are organizations that track partisan bias in the media. They can be helpful when trying to identify where on the political spectrum different news outlets fall. For example, examine the following charts:


For an interactive, more readable version visit adfontesmedia.com
With all these kinds of bias, it can be pretty hard to find unbiased news. In fact, everyone has some bias, and that will come through in the news to one degree or another. There is no one perfect source of news that you can consult for a completely unbiased take on the world. But that doesn't mean it's not worth reading the news. You are biased too, and there's nothing wrong with that, but the best way to compensate for your own bias is to read and hear different perspectives to keep your mind open. Reading the news, especially reading multiple publications, can be incredibly helpful for having a fuller understanding of the world. This is especially true in a time with the Wild West of social media, which are designed to keep you using them as long as possible, which means information is not being checked by journalists or editors, and is biased in whatever way means it will keep you using it the most.
~Libguides: News Media: News Bias. News Bias - News Media - LibGuides at Triton College. (n.d.). https://library.triton.edu/c.php?g=1393486&p=10306402