How to Set Up Gemini for Better AI Chats

By Colin Michaels - Jun 29, 2026

How to Set Up Gemini for Better AI Chats

This is the next entry in the AI chat setup series.

We started with ChatGPT, then Claude. Now it is Gemini's turn.

Gemini is a little different because it lives so close to the Google ecosystem. If you use Gmail, Drive, Calendar, Docs, Sheets, YouTube, Android, Chrome, or Google Search, Gemini can feel less like a separate chatbot and more like a layer sitting across a lot of things you already use.

That is powerful.

It also means setup matters.

The better question is not, "How do I make Gemini answer everything?"

The better question is, "What kind of work am I asking Gemini to do, and what context should it be allowed to use?"

That changes the whole conversation.

Start With The Job

Before choosing a model, turning on Deep Research, or connecting apps, sort the task into a bucket.

Most Gemini work falls into a few practical categories:

• Quick answers: summaries, rewrites, brainstorming, simple explanations, and everyday planning.
• Careful thinking: math, coding, technical decisions, complex comparisons, and multi-step planning.
• File work: PDFs, docs, spreadsheets, images, videos, NotebookLM notebooks, and long notes.
• Google ecosystem work: Gmail, Drive, Calendar, Docs, Sheets, YouTube, Maps, Photos, Android, and other connected services.
• Reusable help: a recurring writing voice, coaching style, study helper, travel planner, or project assistant.
• Research: source-backed reports, web research, citations, and current information.
• Ongoing or agentic work: scheduled actions, task workflows, and Gemini Spark.

That bucket tells you what to use.

If you only need five blog title ideas, regular chat is enough. If you need Gemini to analyze multiple Drive files and current web sources, you are in Deep Research or Connected Apps territory. If you need a repeatable assistant, make a Gem. If you need a longer task workflow, Spark might be the right tool, assuming your account has access.

Start with the smallest tool that can do the job.

That advice keeps showing up in this series because it keeps being true.

Choosing A Gemini Model Without Overthinking It

Google changes model names, access, and limits over time, so do not build your whole workflow around memorizing the latest menu.

As of Google's Gemini Apps Help Center on July 1, 2026, Gemini describes its model family around Flash-Lite, Flash, and Pro. The practical translation is:

• Flash-Lite: fastest and lightest, good for everyday summarizing and brainstorming.
• Flash: the balanced option for most normal work.
• Pro: the heavier option for complex math, coding, file understanding, images, videos, and deeper reasoning.

Gemini also has thinking levels where available:

• Standard thinking: faster and best for most questions.
• Extended thinking: better for complex problem solving.
• Deep Think: maximum parallel reasoning, tied to Gemini Pro and AI Ultra access.

That gives you a simple setup rule:

• Use Flash or standard thinking for everyday work.
• Use Pro or extended thinking for complex work.
• Use Deep Think only when the task is genuinely hard enough to justify waiting.

The most expensive or slowest mode is not automatically the smartest choice. If you ask Gemini to rewrite a grocery list with maximum reasoning, you have not become a power user. You have created a tiny parade for a sandwich.

Set Up Custom Instructions

Gemini lets you customize responses with instructions. Google's Help Center gives examples such as asking Gemini to start with a short summary, use bullet points, or remember preferences so you do not have to repeat yourself.

This is where you put stable preferences:

• Who you are.
• What kind of help you usually want.
• How technical responses should be.
• Your preferred tone.
• Formatting preferences.
• Whether Gemini should ask questions or make reasonable assumptions.

For this site, a useful instruction set might look like this:

I am Colin Michaels, an applications developer and personal blogger.I prefer practical, grounded answers with clear next steps.For blog posts, use a personal, lightly funny voice without sounding corporate.For technical work, explain tradeoffs and give concrete implementation guidance.Use official documentation for product claims when possible.Ask clarifying questions only when the missing information would materially change the result.

Keep it broad.

Do not put every project detail in account instructions. That belongs in a chat, a Gem, a file, a notebook, or a project-specific workflow.

Use Memory Carefully

Gemini can personalize responses using memory of past chats when the feature is available. Google says this lets Gemini learn from chats to understand more about you and your world. It also has requirements and availability limits, including age, account type, and activity settings.

Memory is useful for stable things:

• Your role.
• Your writing preferences.
• Your recurring projects.
• Your preferred level of detail.
• Your communication style.

Memory is not where I would put sensitive information.

My rule is simple:

• Use memory for harmless preferences.
• Use files or current chat context for project-specific material.
• Avoid sharing passwords, API keys, financial information, private health details, or confidential work data.
• Review personalization and activity settings before connecting Gemini to more of your Google account.

The more useful the assistant becomes, the more careful you should be with what it can see.

Use Gems For Repeatable Chat Setups

Gems are customized versions of Gemini. Google describes them as a way to tackle repetitive tasks or get deeper expertise in an area. When you chat with a Gem, Gemini tailors the response to repeated goals and guidelines.

That makes Gems the Gemini version of "I do this often enough that I should stop re-pasting the same setup."

Good Gem ideas:

• Blog editor.
• Study tutor.
• Travel planner.
• Fitness coach.
• Recipe helper.
• Code reviewer.
• Meeting-note cleaner.
• Research brief assistant.

For example, a blog Gem could have instructions like:

Purpose:Help turn rough notes into practical blog posts for colinmichaels.com.Voice:Grounded, personal, useful, lightly funny, and not corporate.Rules:- Prefer official sources for product claims.- Include a title, excerpt, categories, tags, SEO description, source list, screenshot suggestions, and image direction.- Keep paragraphs short.- Do not oversell AI as magic.Output:Blog-ready Markdown.

Use Gems for repeatable behavior.

Use regular chat for one-off work.

Use Files, Notebooks, And Canvas For Work You Want To Keep

Gemini can upload and analyze documents, spreadsheets, NotebookLM notebooks, photos, videos, and more. That is a big deal for real work because it lets Gemini answer from your actual material instead of making you paste everything into the chat box.

Use file upload when:

• You need a PDF summarized.
• You want a spreadsheet analyzed.
• You want feedback on a document.
• You want Gemini to compare multiple files.
• You want to ask questions about images or videos.

Canvas is the workbench. Google describes Canvas as a place where Gemini can help create or edit docs, apps, slides, and code, and then turn creations into other formats like audio overviews or quizzes.

Use Canvas when the output is something you want to keep editing:

• Draft article.
• Slide outline.
• App prototype.
• Code sample.
• Study guide.
• Project brief.
• Checklist.

The plain chat window is good for conversation. Canvas is better when you are building something durable.

Use Connected Apps Slowly

Connected Apps are where Gemini starts becoming more useful and more sensitive.

Google says Gemini Apps can connect to other apps to complete requests and provide more helpful responses. Examples include summarizing Gmail, creating Calendar events, helping with GitHub code, searching Google Photos, and controlling smart home devices.

That is very useful.

It also means you should slow down.

Good setup rules:

• Connect only the apps you actually need.
• Review what Gemini can access.
• Be explicit about what it may and may not do.
• Be careful with work, school, or supervised accounts because availability and admin controls can differ.
• Do not connect sensitive accounts just to experiment.
• Review activity and personalization settings before enabling broader context.

If Gemini can read your Drive, Gmail, Calendar, or GitHub, it can become much more helpful. It can also become much easier to overshare.

The boring permission screen is where future-you either says thank you or asks why past-you was allowed near buttons.

Use Deep Research When Sources Matter

Deep Research is for source-backed work, not every question.

Google says Deep Research can conduct in-depth and real-time research, uses Google Search by default, and can add other sources such as Gmail or Drive. It can also use uploaded files and NotebookLM notebooks.

Use Deep Research when:

• You need citations.
• You are comparing products.
• You are writing a serious article.
• You need current information.
• You want a research report, not a quick answer.
• You want to combine web sources with your own files.

Do not use Deep Research when:

• You only need a quick rewrite.
• You need a simple brainstorm.
• You already have the source material in one short document.
• You are asking a basic explanation question.

Deep Research can be excellent, but it is heavier. Save it for moments when the sources are part of the value.

Scheduled Actions And Gemini Spark

Gemini has a few ways to move beyond one-off chat.

Scheduled actions are for recurring Gemini responses. Google gives examples such as daily news digests, weekly creative inspiration, and monthly suggestions for new skills to learn. To use scheduled actions, you need the right kind of account and plan, and Google says Keep Activity must be on.

Use scheduled actions for simple recurring updates:

• "Every Monday, give me five article ideas about practical AI tools."
• "Every morning, summarize today's calendar."
• "Every Friday, remind me to review unfinished drafts."

Gemini Spark is more agentic. Google describes Spark as a personal AI agent that can automate complex workflows and manage schedules for ongoing tasks. It can use sources like Connected Apps, skills, chats, websites, Personal Intelligence, location, and more. Google also says Spark is experimental and requires supervision.

Use Spark for bigger workflows:

• Declutter an inbox.
• Build a recurring research digest.
• Manage a travel planning task.
• Pull together a source-backed brief.
• Run a task that needs files, schedules, connected apps, and a remote browser.

Use normal scheduled actions for simple recurring prompts.

Use Spark only when the task is complex enough to justify the agentic machinery.

And watch it.

Google's Spark docs call out prompt injection, sensitive information, confirmations, and the need for active supervision. That is not decoration. If an AI agent can interact with websites and connected apps, you should treat it like a capable assistant with a badge that says "new here."

Skills Are For Spark Workflows

Gemini also has Skills, but the important detail is that Google currently describes them as available in Gemini Spark.

Skills save reusable instructions that Spark can apply across tasks and workflows. A skill is the "how" part of a task: the process, preferences, tools, and context Gemini should use.

Think of it this way:

• Gem: reusable chat assistant.
• Skill: reusable Spark workflow instruction.
• Scheduled action: recurring simple prompt.
• Spark task: longer-running workflow.

For example:

• Gem: "Blog Editor"
• Skill: "Create ColinMichaels.com post package"
• Scheduled action: "Every Friday, suggest article ideas"
• Spark task: "Research official docs changes and produce a weekly AI tool update"

That separation keeps the system understandable.

A Better Gemini Prompt Template

Gemini responds better when the prompt has shape.

Try this:

Context:[What is this about? Who is it for? What background matters?]Goal:[What should Gemini produce?]Inputs:[Paste notes, attach files, list sources, or name connected apps Gemini may use.]Gemini setup:[Use standard chat, Pro, extended thinking, Canvas, Deep Research, a Gem, Connected Apps, scheduled action, or Spark if needed.]Output format:[Markdown article, table, checklist, slide outline, research brief, etc.]Standards:[Tone, length, source requirements, privacy limits, formatting.]Process:[Ask clarifying questions only if needed. Otherwise make reasonable assumptions and proceed.]

Example:

Context:I am writing a medium-depth blog post for readers who already understand basic AI chat but want to use Gemini more effectively.Goal:Create a practical guide about Gemini model choice, thinking levels, custom instructions, memory, Gems, Canvas, Connected Apps, Deep Research, scheduled actions, and Spark.Inputs:Use official Google documentation where possible. Mention that features vary by plan, account type, country, and rollout.Gemini setup:Use Deep Research for current product claims. Use Canvas if we are revising the article draft section by section.Output format:Blog-ready Markdown with headings, short paragraphs, examples, official source links, screenshot suggestions, and image direction.Standards:Keep it practical, grounded, lightly funny, and not hype-driven.

That gives Gemini a job, context, source expectations, and a finish line.

That beats "write about Gemini" by a lot.

My Recommended Gemini Setup

If you are past the beginner stage, here is how I would set up Gemini.

First, add custom instructions for broad preferences. Keep them short and stable.

Second, decide whether memory and personalization are something you actually want. If yes, review the settings and keep sensitive details out of it.

Third, use Flash or standard thinking for most work. Move to Pro or extended thinking when the task is more complex.

Fourth, create Gems for repeatable chat helpers. A blog editor, study tutor, travel planner, or code reviewer is a good use case.

Fifth, use files and Canvas when you are working with real documents or drafts. Chat is conversation. Canvas is where the work can sit beside you.

Sixth, connect Google apps slowly. Gmail, Drive, Calendar, Photos, and GitHub-style context can be powerful, but permission should be intentional.

Seventh, use Deep Research when the answer needs sources. Do not burn it on a quick rewrite.

Eighth, use scheduled actions for lightweight recurring prompts. Use Spark only for bigger workflows where the agentic features actually matter.

That setup gives Gemini room to be useful without turning your Google account into an all-you-can-eat buffet for context.

Screenshot Examples To Include

Because Gemini changes often and features vary by plan, account type, country, and rollout, capture screenshots from your own account right before publishing.

• Model and thinking controls

• Show Flash, Pro, or available model choices and any thinking-level selector.
• Suggested caption: "Choose the model and thinking level based on task difficulty."
• Official reference: Gemini Apps limits and model access

• Custom instructions and memory settings

• Show personalization, memory, and instruction settings.
• Suggested caption: "Put stable preferences in settings, not every prompt."
• Official references: Customize Gemini responses, Gemini memory

• Gems screen

• Show premade Gems or the custom Gem setup screen.
• Suggested caption: "Use Gems for repeatable chat assistants."
• Official reference: Get started with Gems

• Canvas beside a chat

• Show a document, app, slide, or code draft in Canvas.
• Suggested caption: "Canvas is the workbench for durable output."
• Official reference: Create docs, apps and more with Canvas

• Connected Apps settings

• Show app connections and permissions.
• Suggested caption: "Connected Apps make Gemini more useful and more sensitive."
• Official reference: Use and manage Connected Apps

• Deep Research setup

• Show source selection, Google Search, Gmail, Drive, file upload, or NotebookLM sources if available.
• Suggested caption: "Use Deep Research when sources are part of the answer."
• Official reference: Use Deep Research in Gemini Apps

• Scheduled action or Spark task view

• Show either a scheduled action or a Spark task plan.
• Suggested caption: "Simple repeats belong in scheduled actions. Bigger workflows belong in Spark."
• Official references: Schedule actions, Use Gemini Spark

Official Sources To Bookmark

• Gemini Apps Help Center
• Gemini Apps limits and upgrades
• Customize Gemini's responses with your instructions
• Get personalization with memory of your past Gemini chats
• Get started with Gems
• Upload and analyze files in Gemini Apps
• Create docs, apps and more with Canvas
• Use and manage Connected Apps in Gemini
• Use Deep Research in Gemini Apps
• Use Deep Think in Gemini Apps
• Schedule actions in Gemini Apps
• Use Gemini Spark
• Create and manage skills for Gemini Apps

Final Thought

Gemini is strongest when you use it as part of a system.

The model matters. The thinking level matters. But the real question is whether Gemini has the right context, the right permission, and the right kind of workspace for the job.

Use Gems for repeated chat behavior.

Use Canvas for work you want to keep shaping.

Use Deep Research when sources matter.

Use Connected Apps carefully.

Use Spark when the task truly needs an agent.

That is the setup.

Not one magic prompt.

A smarter workspace.