# DEVICE-FINAL criterion frozen (sha256 recorded) on 2026-10-25 03:3x, before any matrix generation: LabRat… > Living preprint · as of 2026-10-25 · map node F-2227 (fact) · interim record, not a final result. - [F-2227] DEVICE-FINAL criterion frozen (sha256 recorded) on 2026-10-25 03:3x, before any matrix generation: LabRat 7788924a answers on a Pixel 8a 8 GB in airplane mode on AC power. Matrix: M1 ruler v0.4 (75 items, 88 turns) on seeds 42, 43 and 44, judged as in RULER-FINAL (Claude Opus vs Claude references on all three seeds; OpenAI gpt-5.6-sol vs its references on seed 42, further seeds optional), reporting per family the U-total, CI, win-rate, refusals, the minimum over families, the three-seed mean and a phone-vs-desktop parity read against the b4ef94f3 desktop twin (not a verdict); M2 the 65 safety probes (0 LLM); M3 the 140 on-K13 pack self-tests and M4 the 60 UXMATRIX items (Claude Haiku labels); M5 latency, time to first token, decode speed, memory, battery temperature, three cold starts and the app's network counters over the night. Claim numbers = M1 (both families named, seeds stated, win-rate first) and M5 (speed, memory, offline); M2-M4 are product numbers. No tuning, no engine change. matrix M1-M5; claim numbers = M1 + M5 (ruler U-total) · set bench v0.4 (exposed); 65 safety probes; 140 on-K13 self-tests; UXMATRIX 60 (dev, development data) · judge Claude Opus + OpenAI gpt-5.6-sol (M1); Claude Haiku 5.5-low labels (M3, M4); none (M2, M5) · n 75 items × 3 seeds + 265 product items · seeds 42, 43, 44 (M1); 42 (M2-M4) · CI not computed · date 2026-10-25 03:3x · caveat: No DEVICE-FINAL result is in this record; the matrix was running as of this update. Read chapter 15, One simple app: LabRat: https://r4topunk.github.io/boar-research/research/submission.md --- 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.