Change feed / 2026-03-09
gemini-3-pro-preview shut down; model ID silently aliased to Gemini 3.1 Pro
Roughly four months after launch and without reaching a stable GA ID, Google shut down gemini-3-pro-preview and repointed the ID to gemini-3.1-pro-preview. Requests to the old ID now reach a different model — the canonical silent-version-swap failure mode this index tracks.
Evidencequoted verbatim from the source
Sources (1)
How to cite thisCC BY 4.0 — reuse freely, attribution required
Plain
ModelRiskIndex. "gemini-3-pro-preview shut down; model ID silently aliased to Gemini 3.1 Pro." Change feed, 2026-03-09. https://modelriskindex.com/changes/gemini-3-pro-preview-shutdown
BibTeX
@misc{mri-2026-03-09,
title = {gemini-3-pro-preview shut down; model ID silently aliased to Gemini 3.1 Pro},
author = {{ModelRiskIndex}},
year = {2026},
note = {Change feed, 2026-03-09},
url = {https://modelriskindex.com/changes/gemini-3-pro-preview-shutdown}
}Please cite the dated entry rather than the site root. Every assessment here is a point-in-time judgment bound to evidence retrieved on a specific date — an undated citation asserts something the data does not.
