CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins88% CONFIDENCEOverall confidence: 88%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better1.5 years ago
OpenAI's[1] own model release notes date this entry April 16, 2025OpenAI releases o3, its most powerful reasoning model, and o4-mini, a smaller model optimized for fast, cost-efficient reasoning.
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