Layne Weant
Layne Weant founded Wentropy Labs and built Grey Mirror, which analyses complete message histories rather than screenshots. NLP and privacy engineering.
Who built Grey Mirror?
Layne Weant is the founder of Wentropy Labs and the creator of Grey Mirror, a system that analyses complete exported message histories rather than isolated screenshots. The work sits at the intersection of computational conversation analysis, natural language processing and consumer AI, with a privacy posture that treats a message history as the most sensitive thing a person owns. Not a clinician, therapist or lawyer, and Grey Mirror is not a clinical or legal instrument.
- Computational conversation analysis: measuring reciprocity, escalation, rupture and repair across a full history instead of a sampled moment.
- Natural language processing and machine learning: the classifier stack behind message-level labels, and the evidence grounding that ties every claim back to specific messages.
- Consumer AI product design: making a measurement system legible to someone in the middle of a hard week, without overclaiming what it knows.
- Privacy engineering: aggregate-only publication, anonymisation before scoring, and suppression of small cohorts.
- Published position: a screenshot is the weakest possible evidence about a relationship, and the most commonly used.
- Published position: a tool that measures patterns should publish what it cannot show, next to what it can.
- Author of Relationship Texting Benchmarks 2026, the aggregate study of reciprocity, conflict and repair published at justlay.me/research/relationship-texting-benchmarks-2026.
Layne Weant founded Wentropy Labs and built Grey Mirror, a system that reads a complete exported message history rather than isolated screenshots. The work sits across computational conversation analysis, natural language processing, machine learning and privacy engineering, and it is published rather than described: the methodology, the data dictionary, the provenance audit and the underlying CSVs are all downloadable from the research pages.
The published output is the credential worth checking. Two observed cohorts of complete relationship-message histories have been released -- a 29-history signal cohort covering 4,600,611 messages from 20 accounts, and a 44-history conflict cohort covering 2,994,932 messages -- alongside a synthetic turning-point benchmark and an evidence-retrieval benchmark, each with its scope and its limits stated. The eligibility funnel behind the cohorts is published in full, from a 347-conversation operational universe down to the 29 histories that were actually released.
One reply-latency measure was withheld because the data split 9 to 13 on direction and did not support a claim. That decision is documented on the research page rather than quietly omitted, and it is the clearest available statement of how findings here are handled: figures are attributed to the cohort they came from, cohorts are never summed, and a measure that does not hold is published as withheld rather than dropped.
Grey Mirror ships on the web, as a free native Mac app that reads the Messages and Apple Mail conversations already on the machine, and as a free iPhone app, with one account across all three. Mirror Veil, a separate free tool that strips names, numbers, emails and addresses from a transcript entirely inside the browser with nothing uploaded, is published as open source with a security policy.
Start here
- Analyze your messages — upload a full exported history on the web and watch the first scenes free.
- Grey Mirror for iPhone — the free native iOS app, App Store id 6799236359, iOS 18 or later. Same exports, same report as the web.
- Pricing — the complete report is a one-time $25 unlock, no subscription.
- Published research — aggregate benchmarks across 4,600,611 messages, with the withheld measures stated.
- The Signal Is Rare — conflict outran repair 36 to 1, 97.4% of messages carried no detectable signal, and one claim was withheld.