Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
What changed
Impact summary
Google lists October 23, 2026 shutdown for deep-research-pro-preview-12-2025; replacement deep-research-preview-04-2026.
Affected models and systems
deep-research-pro-preview-12-2025Migration action
Source and interpretation
Google Gemini API · Direct developer platform; eligibility and regional restrictions are account-specific.
Not Vertex AI.
Reviewed merge · 2026-10-13.
Unconfirmed regions are not assumed to be global. Scheduled checks cover only sources in the current monitored list. Source checks
Official evidence locators
Same calendar day as OpenAI legacy GPT wave; distinct Google agent preview ID.
Action / deadline: Review required · Stated deadline
This record is classified as official announcement. The facts above were normalized from the provider's public developer documentation.