Regeneron ISEF 2026 vs MLH Fellowship - Software Engineering Track
Comparing two elite STEM opportunities. Regeneron ISEF 2026 is a competition while MLH Fellowship - Software Engineering Track is a internship.
| Regeneron ISEF 2026 | MLH Fellowship - Software Engineering Track | |
|---|---|---|
| Prestige Tier | Tier 1 — Elite | Tier 2 — Highly Competitive |
| Type | Competition | Internship |
| Organization | Regeneron | Major League Hacking (MLH) |
| Acceptance Rate | Roughly 1,700 finalists are selected from 365 affiliated fairs worldwide. Getting to ISEF requires first winning regionally, which itself is competitive. Estimated <1% of all science fair participants globally reach ISEF. At the ISEF itself, approximately 600 of the 1,700 finalists (~35%) receive some award. | Highly competitive (exact rate not disclosed); MLH notes 'overwhelming demand from students' and significantly more applicants than available projects |
| Applicants | Millions of students compete in science fairs globally each year; approximately 1,700–1,800 reach ISEF as finalists | Not officially published; described as receiving 'overwhelming demand' suggesting hundreds to thousands annually |
| Deadline | — | Rolling |
| Cost to Apply | Free | Free |
| US Only | No / International | No / International |
| Grades | Grades 9–12 (high school students only; middle schoolers compete in the separate Junior Innovators Challenge) | Open to high school students and early-career developers; no specific grade level restriction mentioned, but intermediate to advanced coding proficiency required |
| College Impact | ISEF finalist status is one of the most powerful extracurricular credentials in college admissions. Being named an ISEF finalist (simply qualifying) is Tier 1 on most admissions frameworks. Grand Awar... | Strong positive impact on college applications and career prospects: 1) Demonstrates real-world professional experience (not just school projects or tutoring), which top colleges value significantly; ... |