RESEARCH RECORD
Announcing the ARC White-Box Estimation Challenge — Alignment Research Center
Original publication ↗ · BibTeX · RISWhite-box methods are motivated by limits of behavioral sampling.Current methods degrade with depth, and trained-network transfer remains unresolved.
Research question
Can internal access improve estimates of neural-network expectations?
Design & assumptions
A compute-constrained challenge estimates random MLP expected outputs using mean-squared error.
Findings
White-box methods are motivated by limits of behavioral sampling.
Current methods degrade with depth, and trained-network transfer remains unresolved.
Limits & counterevidence
Initial-announcement configuration only; later contest rounds may differ and current round is unverified. Foundational estimation challenge, not a frontier-model safety score.
Source evidence
| System | Measure | Reported value | Conditions & location |
|---|---|---|---|
| — | width | 256neurons | Initial announcement dated 2026-06-02 only; not current contest configuration. Initial announced width; contest omits final linear layer per L45L15 |
| — | hidden layers | 8layers | Initial announcement dated 2026-06-02 only; not current contest configuration. Initial challenge configuration, can change between roundsL15 |
Reading scope & review
Selected substantive passages of original institutional article; linked full paper, data and figures not independently audited
Model-assisted reading; independent evidence review pending.
Check the original source ↗