timetobail
My stack

Playbook for makers · Forced move · free while in beta

Act

Gemini 2.5 models retire on Vertex AI on October 20, 2026

Readers can stay on Gemini Enterprise Agent Platform: they change a setting or plan. Help the ones who would rather leave.

4 days left · October 20, 2026 · Public page

Medium switching pressure50/100

An estimate from the deadline, cost, discussion and need to move. It is not a product rating.

What goes into it

Confidence: medium.

deadline30/30
money14/25
attention0/25
audience0/12
force6/8
  • Hard deadline in 4 days.
  • The change is forced: it reaches users even if they wait.

  1. 1 Related discussions

    Only threads tied to this event that talk about leaving, moving or prices. Saved, not live. Check the date and read the thread before replying.

    No live threads yet.

  2. 2 What people ask

    No common questions yet.

  3. 3 Reply templates

    Answer the question first. Link only if it helps. Always keep the disclosure line. Never post the same text twice.

    Helpful first
    Sorry you have to deal with this. You can stay on Gemini Enterprise Agent Platform. Here is what to change before October 20, 2026:

1. Find every call to a 2.5 model. Search your code and settings for gemini-2.5-pro, gemini-2.5-flash and gemini-2.5-flash-lite.
2. Pick a model with a later date. Google lists gemini-3.8-flash for all three. Skip gemini-3.6-flash: it retires November 19, 2026.
3. Test, then ship. Run your usual prompts on the new model. Check the output format, speed and cost. Ship before October 20.

If they would rather leave, describe a verified way <your product> can help: <your link>
[Disclosure: I build <your product>.]
    Short answer
    You have until October 20, 2026. You can stay on Gemini Enterprise Agent Platform. First: find every call to a 2.5 model. Then pick a model with a later date.
Happy to help if you get stuck.
[Disclosure: I build <your product>.]
    If you do nothing
    > What happens if I do nothing?

Google Cloud says:
- If you do nothing: Calls to a retired model can fail with errors; Google says to update to a newer model.

You can stay on Gemini Enterprise Agent Platform. To choose when it happens, make the change yourself before October 20, 2026.
Details: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions

I build a tool for people who would rather leave: <your link>
[Disclosure: I build <your product>.]

  4. 4 Switch-page builder

    Create a draft “Switch from Gemini Enterprise Agent Platform” page. Add your product, review every claim, then copy HTML or Markdown. Your product claims need your own evidence.

    • Add your product name to replace “Your product”.
    Preview

    Switch from Gemini Enterprise Agent Platform to Your product

    Gemini 2.5 models on Vertex AI: a change is due by October 20. You can stay on Gemini Enterprise Agent Platform. If you would rather leave, here is how to move to Your product.

    What changes at Gemini Enterprise Agent Platform

    Google retires Gemini 2.5 Pro, Flash and Flash-Lite on Vertex AI on October 20, 2026. Google now calls Vertex AI the Agent Platform. Apps must switch to a newer model first.

    • Retirement date: October 20, 2026 (Google Cloud)
    • Models that retire: gemini-2.5-pro, gemini-2.5-flash and gemini-2.5-flash-lite (Gemini 2.5 Pro, Flash, Flash-Lite) (Google Cloud)
    • Google's picks for 2.5 Pro: gemini-3.8-flash or gemini-3.5-flash (Google Cloud)
    • Google's picks for 2.5 Flash: gemini-3.8-flash, gemini-3.5-flash-lite or gemini-3.1-flash-lite (Google Cloud)
    • Google's picks for 2.5 Flash-Lite: gemini-3.8-flash, gemini-3.1-flash-lite or Gemma 4 (Google Cloud)
    • Careful: a newer model also retires soon: gemini-3.6-flash retires November 19, 2026 (Google Cloud)
    • Retirement date for the newest Flash model: gemini-3.8-flash: none announced yet (Google Cloud)
    • Other picks retire: gemini-3.5-flash: May 19, 2027 or later; gemini-3.1-flash-lite: May 7, 2027 or later (Google Cloud)
    • Can the date move earlier?: No. Google says dates may be extended, but not moved earlier (Google Cloud)
    • If you do nothing: Calls to a retired model can fail with errors; Google says to update to a newer model (Google Cloud)
    • What Google calls Vertex AI now: Gemini Enterprise Agent Platform (Agent Platform for short) (Google Cloud)
    • Apps that call Gemini 2.5 on Vertex AI: Must move to another model by October 20, 2026 (Google Cloud)

    You can stay on Gemini Enterprise Agent Platform if you make the change. This page is for people who would rather leave.

    What Your product gives you

    Write two or three short lines here. Say what Your product does, who it is for, and what it costs. Use only facts you can show.

    How to move from Gemini Enterprise Agent Platform to Your product

    1. Save what you need from Gemini Enterprise Agent Platform. Keep a copy before you cancel anything.
    2. Import into Your product. Say which files you accept and how long an import takes.

    Tell readers the key date: October 20, 2026.

    Questions people ask

    If Your product has a direct answer to one of these, add it here. Keep it short and true.

    How to help new users settle in

    Send one short email. Say what changed, where to find you now, and what they need to do. Put the most important line first.

    If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.

    Sources

  5. 5 Search ideas to validate

    suggested, not measured Phrases people may search when a tool changes like this. We have no search volume data for them.

    • gemini 2.5 models on vertex ai
    • gemini enterprise agent platform alternative
    • gemini enterprise agent platform alternatives
    • gemini enterprise agent platform export
    • how to leave gemini enterprise agent platform
    • switch from gemini enterprise agent platform
    • gemini enterprise agent platform migration
    • gemini enterprise agent platform migration 2026