01A reference cohort
A GitHub artifact’s timestamp does not establish when its chat was generated, or precisely when its link was added. The explorer uses the creation date of the issue, pull request, or comment containing each recovered chat’s share link. Multiple sources are assigned to the earliest qualifying source creation date, so each recovered chat contributes only once.
02Platform, not model
Model versions are unverified. Milestones come from linked provider announcements and describe availability, not attribution, adoption or causal effects on the collected chats.
03A recovered sample
Public sharing, discovery order and retrieval success shape these counts. Platform proportions do not estimate usage or market share. Development relevance, transcript completeness and model versions remain unverified.