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Set Gemini Effort Levels After the October 9 Change

How to set Gemini effort levels and Deep Think after the October 9 model change for free, AI Plus, AI Pro, and AI Ultra plans.

October 4, 2026 Yum News

Google is narrowing which Gemini models a personal account can open, and it is adding a control that changes how hard the model works on each prompt. From October 9, 2026, people without a Google AI plan start seeing the new model list. AI Plus subscribers get an email that says when the same change hits their account.

The useful part is not only which model remains. Google’s help page now says you can set an effort level of low, medium, or high on each available model. AI Pro and AI Ultra also get Deep Think for maximum parallel reasoning. Higher effort uses more of your limit.

What changes on October 9

Google’s Gemini Apps help page says model availability for personal accounts changes in October 2026. Users without an AI subscription see the change starting October 9. AI Plus users should wait for the email that sets their date, rather than assuming the free-account cutoff applies to them the same day.

Update the Gemini mobile app before you check the picker. Google says the latest app version is required for the best experience.

9to5Google’s reading of the updated support document maps the models like this after the change:

No plan: Flash-Lite only. Flash and Pro are no longer available.
AI Plus: Flash-Lite and Flash. Pro is removed.
AI Pro and AI Ultra: Flash-Lite, Flash, and Pro.

That matrix is how the help table is being reported. If your picker still shows a model Google says you should lose, the rollout may not have reached your account yet.

Limits stay compute-based. They refresh every five hours until you hit the weekly cap. Google factors in prompt complexity, features, and chat length. Compared with no plan, AI Plus is 2x the standard limit, AI Pro is 4x, and AI Ultra is 5x or 20x AI Pro depending on the subscription.

Person working on a laptop at a desk

Pick the model your plan still allows

Open the Gemini app on Android or iOS, or go to gemini.google.com. Use the model control at the top of the chat. Pick only a model your plan still lists.

Use Flash-Lite when you want a short answer, a rewrite, or a quick lookup. It is the only model left for accounts with no plan, so it is the default you should expect after October 9.

Use Flash on AI Plus, AI Pro, or AI Ultra when the task needs more than a one-line reply but does not need Pro. Examples include outlining a document, comparing two options, or summarizing a long note you paste in.

Keep Pro for harder work if your plan still includes it. Google lists the Pro model among the features that consume more of your usage budget, along with media generation, Deep Research, extended thinking, and Deep Think.

If Pro is missing and you are on AI Plus, that matches the reported change. Upgrading is the path back to Pro, not a hidden toggle. See how to manage your Google AI plan in Gemini if you need the upgrade, downgrade, or cancel steps.

Set low, medium, or high effort

Google’s help page says each available model can also take an effort level: low, medium, or high. Higher effort improves the model’s ability to finish tasks and give more thorough answers. It also uses more of your limit.

After you select a model, look for the effort control in the same model area or prompt bar. Choose one level before you send the prompt.

Start a new chat so an old thread does not keep a previous setting.
Select the model your plan allows.
Set effort to low for short, familiar tasks such as a subject line or a unit conversion.
Set effort to medium for everyday writing and planning.
Set effort to high when the answer needs several steps, a comparison, or a draft you will edit.
Send the prompt. If you hit a limit message, drop one effort level or switch to Flash-Lite and retry.

Do not leave high effort on for every message. A chain of high-effort turns will reach the five-hour and weekly caps faster, even on AI Pro.

Hands using a smartphone above a keyboard

Turn on Deep Think on AI Pro or AI Ultra

Deep Think is the extra option for maximum parallel reasoning. Google’s October help page says AI Pro and AI Ultra subscribers get it. It is not listed for free accounts or AI Plus.

Earlier Gemini app instructions from Google were to select the Pro model, then turn on Deep Think in the prompt bar before you submit. Use that same sequence if the control appears:

Confirm the account is on AI Pro or AI Ultra.
Select Pro in the model menu.
Turn on Deep Think.
Write a prompt that needs more than one line of reasoning. Ask it to check assumptions, compare options, or show the steps.
Submit and wait. Deep Think is built to consider more than one path, so it is slower than a low-effort Flash-Lite reply.

Google counts extended thinking and Deep Think as premium usage. A few Deep Think prompts can spend more of the five-hour window than a long Flash-Lite chat. Save it for decisions, debugging, or drafts where a shallow answer would waste your time.

The Google DeepMind clip above shows Deep Think working through a math conjecture by testing many ideas before it settles on a proof. That is the behavior the mode is for. It is not a faster chat toggle.

Match the setting to the job

A practical split keeps you inside the limit without dropping quality on hard tasks.

Low effort, Flash-Lite: captions, quick rewrites, simple lists.
Medium effort, Flash (paid plans that still include it): meeting notes, email drafts, trip outlines.
High effort, Pro: multi-step plans, code review notes, side-by-side comparisons.
Deep Think on Pro: problems where a single pass is likely to miss a constraint.

Paste only the source text you need. Longer chats count toward usage. If you generate images, video, or music in the same session, expect the cap to arrive sooner. Those features are called out separately from model choice.

If the control is missing

Update the Gemini app, then sign out and back in with the Google account that holds the plan. Family or work profiles can show a different model list than the personal account you pay for.

AI Plus users should read the email before assuming Pro disappeared on October 9. Google says that email explains when the change applies.

If Deep Think never appears, the account is probably not on AI Pro or AI Ultra, or the app build is old. The help page does not list Deep Think for free or AI Plus plans.

Bottom line

After October 9, free Gemini accounts should plan on Flash-Lite. AI Plus keeps a middle tier and loses Pro on the date in Google’s email. AI Pro and AI Ultra keep Pro and gain Deep Think for maximum parallel reasoning.

Set effort on purpose. Low and medium cover most chats. High and Deep Think are for the prompts that justify the extra usage.