According to the below article, Prosecutors had asked for the maximum sentence (30 yrs in adult prison) under the plea agreement. The judge sentenced Bunsom to 7 years in youth offender services, with a 30-year suspended sentence in the Dept of Corrections.
Denver teen who murdered her 7-year-old nephew sentenced to 7 years in Youth Offender Services
“Every day is a reminder of what I did,” Bunsom, sobbing, told the court. “There still has to be justice for Jordan, he was just a child. I took an innocent life, I have to pay for my sins.”
...
"Marty Beyer, the psychologist, told the court of Bunsom’s troubled youth and upbringing, based in part on multiple interviews with Bunsom. Beyer told the court that Bunsom had been sexually assaulted, including by family members, growing up. Bunsom was bullied in middle school for being Asian, poor and skinny. She had a difficult and troubled relationship with her mother.
...
Bunsom was “emotionally delayed,” Beyer said. Trauma in her life sent her into an emotional downward spiral. Depressed, she acted out in anger and turned to alcohol and marijuana in her youth."
More at link
According to the article Bunsom has been invested in her treatment, taking meds, and attending counseling sessions. The judge said that she believes ""Bunsom is working hard to change her life and to somehow atone."