The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
IBM's[2] announcement page is dated 18 December 2024 and says 'today marks the release of IBM Granite 3.1'; the Granite 3.1 8B Instruct and Granite Guardian 3.1 model cards both give the release date as December 18, 2024.
Launch post by IBM's[1] Kate Soule, a day after release, restating the 128K context, embedding and Guardian additions.
IBM's[1][2] model card: Apache 2.0, 128K context and 'Release Date: December 18th, 2024'.
Model card of the Guardian 3.1 8B safety model that adds function-calling hallucination detection; lists release date December 18, 2024.[1]
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