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5 1239 September 22, 2020
Request to extend the deadline of Phase 1
ARC White-Box Estimation Challenge 2026
6 331 July 30, 2026
Recommendation: restoring the estimation framing (neutralizing the wall-time compute channel)
ARC White-Box Estimation Challenge 2026
clarification ,  bug
0 206 July 28, 2026
A bet on a floor, filed before the reveal
ARC White-Box Estimation Challenge 2026
announcement
3 363 July 28, 2026
Potential flopscope accounting bypass bug
ARC White-Box Estimation Challenge 2026
bug
2 496 July 28, 2026
Phase I Submission: Structure-Aware Estimation for Random ReLU MLPs
ARC White-Box Estimation Challenge 2026
0 332 July 27, 2026
Smoke wall time limit is different from evaluation limit?
ARC White-Box Estimation Challenge 2026
0 158 July 26, 2026
Cost-model question: releasing temporaries of counted ops is charged to residual — and a request to expose out= on fnp.matmul
ARC White-Box Estimation Challenge 2026
0 252 July 26, 2026
There is a bug in flopscope.numpy.linalg.solve that undercounts batched right-hand sides
ARC White-Box Estimation Challenge 2026
bug
5 646 July 25, 2026
Phase 1 write-up: Stabilizing cumulant propagation at depth 32 — a trajectory-calibrated moment chain, with an error budget (submission #314695)
ARC White-Box Estimation Challenge 2026
0 525 July 24, 2026
Submissions score 50/50 with 0 failures but flagged "Evaluation could not complete"
ARC White-Box Estimation Challenge 2026
1 265 July 23, 2026
[whest run] Residual Wall Time in the budget-breakdown panel reads ~39,807 s under --runner subprocess
ARC White-Box Estimation Challenge 2026
0 268 July 23, 2026
[flopscope] budget_summary_dict() cost grows with process history — silently inflates residual and can cost the 0.1 multiplier floor
ARC White-Box Estimation Challenge 2026
0 331 July 23, 2026
Phase 1 write-up: A variance/bias budget for deep white-box mean estimation (submission 317660)
ARC White-Box Estimation Challenge 2026
0 728 July 21, 2026
Flopscope v0.8.0 Release Candidate Available!
ARC White-Box Estimation Challenge 2026
12 1651 July 20, 2026
📹 Townhall Summary & Recording
ARC White-Box Estimation Challenge 2026
0 667 July 17, 2026
[flopscope] Bug report: empty contractions receive negative FLOP charges (budget increases)
ARC White-Box Estimation Challenge 2026
1 400 July 17, 2026
Live Q&A with ARC Organisers | Join the Townhall on July 6
ARC White-Box Estimation Challenge 2026
3 764 July 16, 2026
Leaderboard issue!
ARC White-Box Estimation Challenge 2026
0 1008 July 12, 2026
Unbiased randomized-QMC + Rao-Blackwell for post-ReLU activation means — method, unbiasedness proof, and where the frontier is
ARC White-Box Estimation Challenge 2026
1 1446 July 7, 2026
Algorithmic contribution prize guidelines: How ARC judges these prizes — discretion, technical writeups & LLM usage
ARC White-Box Estimation Challenge 2026
4 1384 July 6, 2026
[Phase 1 write-up] Characterizing a systematic scale bias in the Gaussian-closure estimator (submission #314331)
ARC White-Box Estimation Challenge 2026
0 1098 July 6, 2026
Same submission but different scores?
ARC White-Box Estimation Challenge 2026
2 569 June 30, 2026
Datasets with higher moments?
ARC White-Box Estimation Challenge 2026
1 948 June 30, 2026
How to use pytorch in this challenge?
ARC White-Box Estimation Challenge 2026
5 687 June 26, 2026
Explain this issue
ARC White-Box Estimation Challenge 2026
1 555 June 26, 2026
Memory usage limit
ARC White-Box Estimation Challenge 2026
2 603 June 23, 2026
:speech_balloon: Feedback & Suggestions
ARC White-Box Estimation Challenge 2026
17 1532 June 23, 2026
Submission validates locally but fails with Evaluation error
ARC White-Box Estimation Challenge 2026
bug
2 531 June 23, 2026
Submission fails due to the redirect
ARC White-Box Estimation Challenge 2026
7 630 June 20, 2026