Author: Nadali. Prepared with AI assistance.
What changed
On 2 November, Google deprecated Gemini 2.5 Pro and Flash, removing them from AI Studio selection. From 1 December 2026, API requests will automatically route: gemini-2.5-pro → gemini-3.8-flash; gemini-2.5-flash → gemini-3.5-flash-lite, at replacement rates. This is not an API shutdown today.
Who benefits: small-business owners whose team or contractor has connected the Gemini API to a workflow. The practical takeaway: commission an integration check before December, rather than just renaming the model in settings.
What to ask the person responsible
Nadali’s suggested action plan:
- List workflows using the Gemini API, exact model identifiers and responsible contractors. Do not include API keys in that inventory.
- Agree on test cases without confidential customer information: an ordinary request, missing information and a connected-tool error. Define unacceptable answers and actions beforehand.
- Ask a technical specialist to work through the relevant migration guide. For 3.8 Flash, Google separately covers reasoning settings and function-call checks. For 3.5 Flash-Lite, there is another requirements checklist. Do not assume an old request remains compatible after changing its model name.
- Before enabling real actions, compare outputs, errors and actual costs on the agreed cases. Record the release decision and a manual fallback if the checks fail.
This is a proposed review process, not a test we conducted or a promise of savings.
Scope and limits
The news concerns these Gemini API models and AI Studio selection; it does not establish changes across all consumer Gemini apps. Automatic request routing does not, by itself, demonstrate compatibility with a particular business integration.
Sources read on 2 November. The separate deprecations page did not open; the full official changelog establishes the dates and routes, while two migration guides explain transition requirements. Nadali did not make API requests or inspect a customer account. The cover is a reused AI illustration of checking records, not Google’s interface or a test result.
