CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 3 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 betterThe Google Developers Blog[3] post "Start building with Gemini 2.5 Flash" is dated 17 April 2025 and says the preview is available that day in the Gemini API via Google AI Studio and Vertex AI.
Google puts Gemini 2.5 Flash in preview, its first fully hybrid reasoning model, where developers can switch thinking off or cap it with a thinking budget of up to 24,576 tokens.