# RULER-FINAL: Ruler v0.4 on BoarLite's final engine (desktop twin) > Living preprint · as of 2026-10-25 · map node X-405 (experiment) · interim record, not a final result. - [X-405] RULER-FINAL · Ruler v0.4 on BoarLite's final engine (desktop twin) · question: What is BoarLite's U-total on v0.4 under both judge families? · result: U-total Claude 0.164 (0.123-0.208), OpenAI gpt-5.6-sol 0.245 (0.194-0.300); minimum over families 0.164 (0.123-0.206); win-rate 0 of 71 under both (1 gpt-5.6-sol tie) · set v0.4 (71 headline + 4 anchors), judge Claude Opus + OpenAI gpt-5.6-sol, n 71, seeds 1 (42), CI Claude 0.123-0.208; gpt-5.6-sol 0.194-0.300; minimum 0.123-0.206 · verdict: measurement (run complete; below the 0.50 bar on the lower judge family; published 2026-10-25 as history (desktop twin of b4ef94f3, before the Rat persona line); the headline is DEVICE-FINAL (OF-8)) ## Outgoing - uses: [G-u-total] U-total → https://r4topunk.github.io/boar-research/map/g-u-total.md - led to: [D-216] Publish LabRat's numbers, keep the app maintainer's internal; headline = DEVICE-FINAL; b4ef94f3 desktop run = history; applyShown documented, not fixed (published as history (F-2215)) → https://r4topunk.github.io/boar-research/map/d-216.md ## Incoming - led to: [D-204] Final ruler run frozen: BoarLite b4ef94f3, v0.4, one seed, both judge families (the final ruler run (desktop twin)) → https://r4topunk.github.io/boar-research/map/d-204.md Read chapter 12, A second ruler (bench v0.4): https://r4topunk.github.io/boar-research/research/new-ruler.md ## Facts cited {#facts} Resolve every [F-…] marker in https://r4topunk.github.io/boar-research/data/facts.json. Each line gives the claim, the number with its metric family, set and status, judge, n, seeds, CI, date and caveat. - [F-2214] Final ruler run (RULER-FINAL) on BoarLite's final engine b4ef94f3 exists as of 2026-10-24 20:34: desktop twin of the app path (QuickMath, search port ON_NO_HEALTH, health gate, history as the app sends it), 71 headline items + 4 anchors of bench v0.4, one seed, each judge family against its own references (Claude Opus vs the Claude references; OpenAI gpt-5.6-sol vs its references), 150 + 150 judge calls, addendum frozen before any generation; its numbers were held until the author's publication decision of 2026-10-25 (now public as F-2215 and F-2217; history, the headline is DEVICE-FINAL) · set v0.4 (held-out ruler; exposed) (held-out ruler (v0.4; now exposed to three engines)) · judge Claude Opus + OpenAI gpt-5.6-sol (each vs its own references) · date 2026-10-24 20:34 · caveat: Deviations from the spec: one seed (spec: two; the author's choice), one reference family per judge family, stage 1 (DECLINE2STAGE) not run, no errata, desktop twin not the APK on a phone (the spec labels desktop-twin numbers dev/parity evidence). v0.4 is the claim set: no tuning after this run. - [F-2215] RULER-FINAL U-total of BoarLite b4ef94f3 on v0.4: Claude family 0.164 (0.123-0.208), OpenAI gpt-5.6-sol family 0.245 (0.194-0.300); minimum over families 0.164 (0.123-0.206); win-rate 0 of 71 (Claude) and 0 of 71 with 1 tie (gpt-5.6-sol); fixed-text refusals on 3 items. Claude 0.164; gpt-5.6-sol 0.245; min 0.164; win-rate 0 (ruler U-total) · set v0.4 (held-out ruler; exposed) (held-out ruler (v0.4; exposed)) · judge Claude Opus + OpenAI gpt-5.6-sol (each vs its own references) · n 71 headline items · seeds 1 (42) · CI Claude 0.123-0.208; gpt-5.6-sol 0.194-0.300; min 0.123-0.206 · date 2026-10-24 20:34 · caveat: Metric: ruler v0.4 U-total (71 headline items, health weight 0.5); never on one axis with the judge.v1 ratio or outcome labels. Desktop twin, one seed. Published by the author's decision of 2026-10-25 (AD-15 (b)): BoarLite/LabRat is the author's own submission. History, not the headline: desktop twin of engine b4ef94f3, one seed, before the Rat persona line and the cleanup (F-2223, F-2225); not a measurement of LabRat 7788924a. The headline is the on-phone run DEVICE-FINAL (OF-8). - [F-2217] RULER-FINAL information-available split: Claude family U-total 0.164 where the installed packs hold the answer (n 19), 0.174 partly (n 25), 0.155 not at all (n 27); gpt-5.6-sol family 0.272 / 0.238 / 0.233: with the information present, the 1.7B does not deliver it. AVAILABLE 0.164 vs NONE 0.155 (Claude) (ruler U-total) · set v0.4 (held-out ruler; exposed) (held-out ruler (v0.4; exposed)) · judge Claude Opus + OpenAI gpt-5.6-sol · n 19 / 25 / 27 headline items · seeds 1 (42) · CI not computed · date 2026-10-24 20:34 · caveat: Metric: ruler v0.4 U-total (71 headline items, health weight 0.5); never on one axis with the judge.v1 ratio or outcome labels. Pre-registered stratifier (spec r4). Published by the author's decision of 2026-10-25 (AD-15 (b)): BoarLite/LabRat is the author's own submission. History, not the headline: desktop twin of engine b4ef94f3, one seed, before the Rat persona line and the cleanup (F-2223, F-2225); not a measurement of LabRat 7788924a. The headline is the on-phone run DEVICE-FINAL (OF-8). --- Cite as: r4to, independent researcher. RatLab — A Boar Research (2026), research record 1.0, as of 2026-10-25. Text and data CC BY 4.0. Fact ids or a link must travel with a quote. How to cite: https://r4topunk.github.io/boar-research/cite/ · https://r4topunk.github.io/boar-research/CITATION.cff. AI-reviewed, not clinically reviewed. Nothing here is medical advice.