FLTEval C
AI benchmark · Coding
What is FLTEval?
A repository-level Lean 4 proof engineering benchmark that measures whether a model can complete formal proofs and correctly define new mathematical concepts inside realistic FLT project pull requests.
Tier C
C
Niche: a handful of models scored, or built by an RL vendor.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- 1 models scored
- fewer than 5 models scored
- in curated RL directories (2 pts)
How we got to tier C
- Adoption: 1 models scored; fewer than 5 models scored. Tier D.
- Not yet read on X.
- In curated RL directories: 2 points, a floor of C. Raised to C.
- Not yet confirmed by a line from its own site or paper.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Not on the map yet: no line from its own site or paper places it in a domain.
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-10-11 snapshot.