FiveThirtyEight media bias rating is Center.

FiveThirtyEight is a polling aggregation website with a blog created by Nate Silver. Sometimes referred to as 538, the website takes its name from the number of electors in the United States electoral college.[1] Established on March 7, 2008, as FiveThirtyEight.com, in August 2010 the blog became a licensed feature of The New York Times online and was renamed FiveThirtyEight: Nate Silver's Political Calculus. In July 2013, ESPN announced that it would become the owner of the FiveThirtyEight brand and site, and Silver would become editor-in-chief.[2] The ESPN-owned FiveThirtyEight began publication on March 17, 2014.

Source http://en.wikipedia.org/wiki/FiveThirtyEight

See how we rate the media bias of other news outlets and writers.

The AllSides Media Bias Rating reflects the average judgment of the American people.

The AllSides Media Bias RatingTM reflects the average judgment of the American people. We don't use a convoluted mathematical or artificial intelligence model, but instead have regular people representing the broad spectrum of Americans blindly rate the bias of articles. That produces a fair, verifiable bias rating.

This media bias rating was determined using the following levels of bias verification.

Basis of Rating:

Blind Survey
Third Party Data
0
Community Feedback
0
Editorial Review
1
Secondary Research

Confidence Level:

Low or Initial Rating

Unless otherwise noted, this bias rating refers only to news articles on their web site, not from opinion pieces or what is broadcasted on TV or radio. The opinion writers from the same media source may have different bias ratings, so individual writers often are rated separately.