100 Best Gemini Prompts by Category (2026)
A great Gemini prompt is not a magic phrase, it is a clear brief. Give Gemini a role, a goal, the context it needs, and the exact format you want back, and its 1M-token window and native multimodality do the rest. This library organizes 100 of the most useful prompts into 10 categories so you can find the right one in seconds.
To keep this readable, each category below shows a ready-to-paste prompt plus a fill-in template you can reuse. The full set of 100 follows the same pattern, and the closing section shows you exactly how to build the rest yourself. These work across the Gemini family, including Gemini 3.1 Pro for reasoning, Gemini Flash for speed, AI Studio for building, and NotebookLM for research.
How to read this library: the blue cards are prompts you can paste as-is. The grey cards are templates with [square brackets] you fill in with your own details. Copy a template once, adapt the brackets, and you have a prompt you can reuse forever.
For more on getting the most from Google's models, our Google Gemini hub covers every Gemini model, AI Studio, NotebookLM and Veo in depth.
How to Write a Great Gemini Prompt
The best Gemini prompts share four parts: a role, a task, context, and an output format. Miss any one and the answer drifts. Include all four and Gemini gives you something you can use on the first try. This is the whole framework behind every prompt in this library.
- Role: tell Gemini who to be. You are a senior financial analyst. This sets tone and depth.
- Task: state the single goal clearly. Vague tasks get vague answers.
- Context: paste the data, the audience, the constraints. Gemini's long context window rewards detail.
- Format: say exactly what you want back. A table, 5 bullet points, valid JSON, a 200-word summary.
My one rule that fixes most bad prompts: always end with the format you want. The difference between give me marketing ideas and return 5 ideas as a table with columns for channel, hook and effort is the difference between a wall of text and something you can act on.
1. Writing and Content Prompts
Gemini is strong at long-form writing when you give it a clear audience and structure. These prompts cover blogs, rewrites and summaries, the three writing tasks people use most.
READY PROMPT: Blog outline
You are an experienced content strategist. Create a detailed blog outline for the topic 'how small businesses can use AI in 2026'. Include an SEO title under 60 characters, a one-line hook, 6 H2 sections each with a one-sentence summary, and 5 FAQ questions people actually search. Format as a clean nested list.
TEMPLATE (fill the brackets)
You are an experienced [role]. Write a [content type] about [topic] for [target audience]. The tone should be [tone], the length about [word count] words, and it must include [specific requirement]. Return it as [format].
My take: the audience line is what most people skip, and it is the one that changes everything. Writing for a busy CFO and writing for a curious beginner are different jobs, and Gemini only knows which if you tell it
2. Coding and Development Prompts
For coding, Gemini works best when you show it the code and name the exact problem. These prompts cover debugging, explaining and refactoring, and they pair naturally with Google AI Studio and the Antigravity coding tools.
READY PROMPT: Debug with a root cause
You are a senior software engineer. Here is a function that returns the wrong result on empty input (code below). Find the root cause, not just the symptom. Explain why it happens in plain English, give a minimal fix, and write one unit test that would have caught it. Do not rewrite the whole function.
TEMPLATE (fill the brackets)
You are a senior [language] developer. Here is my code: [paste code]. It should [expected behavior] but instead [actual behavior]. Find the root cause, give a minimal fix, and explain the change in two sentences.
Pro tip: asking for the root cause and a test, not just a fix, is what separates a useful answer from a lucky guess. It forces Gemini to reason about why the bug exists rather than pattern-matching a patch.
3. Data and Spreadsheet Prompts
Gemini handles data analysis and spreadsheet logic well, especially when you specify the exact output columns. These prompts turn raw numbers into decisions.
READY PROMPT: Analyze a dataset
You are a data analyst. I will paste a table of monthly sales by region. Identify the three most important trends, cite the specific numbers that support each one, flag any anomaly, and end with one clear recommendation. Return the trends as a numbered list and the recommendation as a single bold sentence.
TEMPLATE (fill the brackets)
You are a data analyst. Here is my data: [paste table]. Analyze it for [goal, e.g. growth drivers], show the numbers behind each finding, and return the result as [format, e.g. a table with columns X, Y, Z].
Don't just use ChatGPT. Learn to build custom LLM agents, RAG pipelines, and full-stack Agentic AI apps in our intensive 6-week program.
4. Research and Learning Prompts
With its long context window and NotebookLM integration, Gemini is a strong research and study partner. These prompts help you learn faster and check your understanding.
READY PROMPT: Explain like I choose the level
You are a patient expert teacher. Explain how transformer models work at three levels: one paragraph for a curious beginner, one for a computer science student, and one for an ML engineer. For each level, end with one question that tests whether I understood it.
TEMPLATE (fill the brackets)
You are an expert in [field]. Teach me [concept] as if I am a [level: beginner, intermediate, advanced]. Use one concrete analogy, one worked example, and finish with [number] questions to test my understanding.
My take: asking Gemini to quiz you at the end turns passive reading into active learning, and it exposes the exact spots where the explanation did not land.
5. Business and Marketing Prompts
For business tasks, Gemini shines when you give it real constraints like budget, channel and audience. These prompts produce plans you can actually run.
READY PROMPT: Marketing plan on a budget
You are a growth marketer. Create a 30-day marketing plan to launch a $29-per-month productivity app with a $2,000 budget, targeting remote knowledge workers. Return a week-by-week table with columns for channel, specific action, estimated cost, and the one metric that proves it worked.
TEMPLATE (fill the brackets)
You are a [marketing role]. Create a [timeframe] plan to [goal] for [product] with a budget of [amount], targeting [audience]. Return it as a table with columns for [columns you want].
6. Multimodal Prompts (Image, PDF, Video Input)
Native multimodality is Gemini's biggest edge, so these prompts assume you attach a file. Gemini reads images, PDFs and video directly, which no text-only model can match.
READY PROMPT: Turn a PDF into a summary
You are a research assistant. I have attached a PDF report. Summarize it in 200 words for a busy executive, then list the five most important data points as a table with the figure and the page it appears on. Flag anything the report claims without evidence.
TEMPLATE (fill the brackets)
I have attached a [image, PDF, or video]. Analyze it for [goal], extract [what you need], and return the result as [format]. Cite the specific [page, timestamp, or region] for each finding.
Why this matters: the cite the page or timestamp instruction is the trick that makes multimodal output trustworthy. It forces Gemini to point at the source instead of paraphrasing from memory.
7. Productivity and Email Prompts
Gemini lives inside Google Workspace, so email and productivity prompts pay off immediately. These handle the writing you do every day.
READY PROMPT: Reply to a hard email
You are a calm, professional communicator. Draft a reply to the email below that declines the request politely, offers one alternative, and keeps the relationship warm. Keep it under 120 words and match a friendly but professional tone. Email: [paste email].
TEMPLATE (fill the brackets)
Draft a [type: reply, follow-up, cold email] to [recipient] that [goal]. Tone: [tone]. Length: [limit]. Include [must-have] and avoid [do not mention]. Here is the context: [paste].
The only comprehensive program designed to take you from basic prompting to building interactive Artifacts, custom integrations, and deploying production-ready code with Claude Code.
8. Creative and Brainstorming Prompts
For ideation, give Gemini a constraint and ask for volume, then refine. Constraints beat blank-page freedom every time.
READY PROMPT: 20 ideas, then the best 3
You are a creative director. Give me 20 name ideas for a plant-care mobile app aimed at first-time plant owners. Make them short, easy to spell, and warm in tone. Then pick your three favorites and explain in one line why each would work.
TEMPLATE (fill the brackets)
You are a [creative role]. Generate [number] ideas for [thing], with the constraints [constraints]. Then choose the top [number] and justify each in one sentence.
9. Image Generation Prompts
Gemini's image tools reward specific, layered descriptions covering subject, style, lighting and composition. Vague prompts get generic images.
READY PROMPT: Product hero image
Create a photorealistic hero image of a matte-black reusable water bottle on a light concrete surface, soft natural window light from the left, shallow depth of field, minimalist studio style, plenty of clean negative space on the right for text. 16:9 aspect ratio.
TEMPLATE (fill the brackets)
Create a [style, e.g. photorealistic, 3D, watercolor] image of [subject] in [setting]. Lighting: [lighting]. Composition: [framing and focus]. Mood: [mood]. Aspect ratio: [ratio]. Leave space for [text or logo] if needed.
My take: the negative space instruction is the one designers always forget. Ask for it up front and you get an image you can actually put a headline on.
10. Agent and NotebookLM Prompts
For agentic and research workflows, treat Gemini like a capable assistant you brief once and check. These prompts use its Deep Research and NotebookLM strengths.
READY PROMPT: Deep research brief
You are a research analyst. Research the current pricing of the top five AI coding tools in 2026. For each, give the monthly price, one standout feature, and one weakness, with a source link for every price. Return a comparison table sorted by price, then a two-sentence recommendation for a solo developer.
TEMPLATE (fill the brackets)
You are a research analyst. Research [topic]. For each [item], capture [fields you need], cite a source for every claim, and return a [format]. End with a recommendation for [audience].
Why cite-every-claim matters: research prompts are where AI hallucinates most. Demanding a source per figure turns Gemini from a confident guesser into a checkable assistant, and it is the single most important instruction in any research prompt.
How to Build the Other 80 Prompts
You now have 10 ready prompts and 10 templates, two per category. Building the remaining 80 is mechanical, because every strong Gemini prompt follows the same four-part shape from the top of this guide. Here is the pattern to repeat.
The formula for any new prompt: Role plus Task plus Context plus Format. Pick a category, choose a task within it, and fill those four slots. That is all a good prompt is.
To expand each category to ten prompts, vary one slot at a time. Keep the role and format, and change the task: in the writing category, swap blog outline for product description, LinkedIn post, press release, cold email, video script, and so on. Each becomes a new prompt in seconds, and each template you already have generates a whole family of them.
- Writing: outline, rewrite, summarize, headline, script, caption, press release, product copy, editing, tone shift.
- Coding: debug, explain, refactor, write tests, convert language, review a PR, optimize, document, generate boilerplate, design an API.
- Data: analyze, clean, summarize, forecast, build a formula, make a chart brief, find anomalies, compare periods, segment, report.
Repeat that across all ten categories and you have your 100. The point of a prompt library is not memorizing 100 magic phrases, it is internalizing one repeatable shape and applying it everywhere.
If you also work in Claude, the same four-part structure applies, and our 50 best Claude prompts is the companion library for that model.
Frequently Asked Questions
Q: What are the best prompts for Gemini?
The best Gemini prompts give it a clear role, a single task, the context it needs, and the exact output format you want. Across categories, the strongest prompts share this four-part structure, and they end with a format instruction such as return a table or give 5 bullet points, which is what makes the output usable.
Q: How do I write a good Gemini prompt?
Include four things: a role (you are a data analyst), a task (analyze this data), context (paste the data and constraints), and a format (return a table with these columns). Gemini's long context window rewards detail, so specific prompts consistently beat short vague ones.
Q: What can Google Gemini do?
Gemini handles writing, coding, data analysis, research, and multimodal tasks, reading images, PDFs and video natively. The Gemini 3.1 Pro model excels at reasoning and multimodal work, Gemini Flash is fast and cheap for high volume, and it integrates with AI Studio, NotebookLM, Veo and Google Workspace.
Q: Are Gemini prompts different from ChatGPT prompts?
The core structure is the same, role, task, context, format, so a good prompt transfers between them. Gemini's differences are practical: a very long context window that rewards pasting more source material, and strong native multimodality, so image, PDF and video prompts work especially well.
Q: What is the best Gemini model for prompts?
Gemini 3.1 Pro is best for complex reasoning, coding and multimodal prompts, scoring 94.3% on GPQA Diamond. Gemini Flash is best for fast, high-volume, cost-sensitive prompts. Use Pro when quality matters and Flash when speed and cost matter.
Q: Can Gemini generate images from prompts?
Yes. Gemini generates images from text prompts, and results improve when you specify subject, style, lighting, composition, mood and aspect ratio rather than a short description. Asking for negative space is a useful trick when you plan to add text or a logo over the image.
Q: How long can a Gemini prompt be?
Gemini 3.1 Pro supports a context window of up to 1 million tokens, which is roughly 750,000 words, so you can paste entire documents, codebases or datasets into a single prompt. Long, detailed prompts with pasted context consistently produce better results than short ones.
Recommended Blogs
- 50 best Claude prompts
- AI prompts and prompt engineering hub
- Google Gemini complete hub
- Best AI models July 2026
Resources and Community
Join our community of 70,000+ AI enthusiasts and learn to build powerful AI applications. Whether you are a beginner or an experienced developer, Build Fast with AI helps you understand and implement AI in your projects.
- Website (buildfastwithai.com)
- LinkedIn (Build Fast with AI)
- Instagram (@buildfastwithai)
- Founder Twitter (@satvikps)
- Twitter (@BuildFastWithAI)
Agentic AI Launchpad 2026
A structured 6-week cohort program that takes you from AI basics to building and deploying real-world agentic AI systems. Includes live sessions, expert mentorship, project reviews, and a builder community network.
Ready to go from learning to building? Join the next cohort: Agentic AI Launchpad 2026
Free AI Resources
Access free tools, workshops, and micro-learning to keep building:
Bookmark this library, copy the templates, and adapt them to your own work. Follow Build Fast with AI for more prompt libraries and hands-on AI guides.
