Here's why it's not a simple yes or no:
* GPA Weighting and Scale: MIT and Stanford don't use a 10-point scale. They need to convert your GPA to their own system, and how that conversion works depends on your high school's grading system and rigor. A weighted GPA (where advanced courses earn extra points) would be viewed more favorably.
* Course Rigor: Taking the most challenging courses available significantly impacts your application. A 8.5 in easy classes is far less impressive than an 8.5 in a demanding curriculum including AP, IB, or honors courses.
* Standardized Test Scores: While some colleges are test-optional or test-blind, strong SAT or ACT scores are still highly influential at MIT and Stanford. Exceptional scores can compensate for a slightly lower GPA, while weak scores can severely hurt even a strong GPA.
* Extracurricular Activities: MIT and Stanford want well-rounded students. Exceptional achievements in extracurricular activities, research, leadership, or community service are crucial. A stellar GPA alone won't be enough.
* Letters of Recommendation: Strong letters of recommendation that highlight your abilities and character are essential.
* Essays: Your essays provide the admissions committee with a personal understanding of your motivations, aspirations, and experiences. Compelling essays are crucial to show your fit for the university and distinguish you from other applicants.
In short: An 8.5 GPA is a great foundation, but it's far from a guarantee of admission to MIT or Stanford. You need a holistic application demonstrating excellence across all areas mentioned above. These universities are incredibly selective, accepting only a small percentage of applicants even with perfect GPAs and SAT scores.