Full-difficulty production
Stem, solution, tags, and difficulty mix you can audit.
Vertical · STEM
Leaderboard deltas come fromitem difficulty and solution quality.
From olympiad to doctoral difficulty, Lumesage produces expert items and solutions aligned to MATH-class reasoning — plus private suites that resist contamination.
Book a 15-min briefingWhat we deliver
Expert author network
Contest coaches and graduate-level reviewers — not template generators.
Frontier Reasoning suite
Private sets that expose long-horizon failures and drive the next pack.
- STEM-MATH full-difficulty pack
- Proof and multi-step traces
- Frontier Reasoning private eval