Free AI Prompt Library - ChatGPT, Claude, Gemini

DALL-E Prompt for Writing Prospecting Emails

DALL-E, the AI image generation tool developed by OpenAI, can radically transform your prospecting emails by creating impactful and personalized visuals. In a context where inboxes are saturated, an email accompanied by an original and professional visual immediately captures the prospect's attention. Thanks to DALL-E, you can create custom illustrations for each segment of your audience: engaging header banners, simplified infographics highlighting your value proposition, or contextualized product visuals according to your target's industry. The major advantage lies in the speed of execution and large-scale personalization, two essential elements in B2B and B2C prospecting. Rather than using generic image banks that your competitors also leverage, DALL-E allows you to create unique visuals that strengthen your brand image and significantly increase your open and click-through rates. This guide offers optimized prompts to generate the most effective visuals to accompany your prospecting email campaigns.

Gemini Prompt to Optimize Conversion Rate

Conversion rate optimization (CRO) is a major strategic lever for any digital business. Each percentage point gained on your conversion rate translates directly into additional revenue, without increasing your acquisition budget. Google Gemini, with its multimodal analysis capability and fine understanding of user behavior, becomes a formidable ally in identifying frictions in your conversion journeys and proposing concrete optimizations. Whether you manage a landing page, an e-commerce sales funnel, or a SaaS sign-up form, Gemini can analyze your data, generate improvement hypotheses, and write optimized content variants to convert. This prompt was designed to fully exploit Gemini's analytical capabilities: it structures your request by providing the necessary business context, current metrics, and targeted goals. The result is a complete CRO action plan, prioritized by estimated impact, that you can implement immediately. No more generic CRO audits: with this prompt, you get recommendations specific to your situation, based on UX best practices and proven persuasion principles.

ChatGPT Prompt for Analyzing Market Trends

Market trend analysis is a strategic exercise essential for any company wishing to anticipate changes in its sector. Traditionally reserved for consulting firms and analyst teams with expensive tools, this discipline is now accessible thanks to ChatGPT. By formulating precise and structured prompts, you can leverage the AI's ability to synthesize large volumes of information, identify emerging patterns, and produce sector analyses worthy of a professional report. Whether you are an entrepreneur seeking to validate an opportunity, a marketing manager preparing a strategic plan, or an investor evaluating a sector, ChatGPT can significantly accelerate your monitoring and market understanding. The main challenge lies in the quality of the prompt: a vague prompt will produce a generic analysis, while a structured prompt with the right parameters will generate actionable and differentiating insights. This guide provides tested and optimized prompts to transform ChatGPT into a true competitive intelligence assistant.

Stable Diffusion Prompt to Create a Knowledge Base

Stable Diffusion is an artificial intelligence image generation tool that can radically transform how you build and enrich a visual knowledge base. Whether you're documenting internal processes, creating illustrated guides, or developing a library of educational resources, Stable Diffusion lets you produce consistent, informative professional visuals at scale. Unlike generic stock image libraries, AI-generated illustrations can be perfectly tailored to your business context, your brand guidelines, and your specific documentation needs. By combining well-structured prompts with Stable Diffusion's capabilities, you can create explanatory diagrams, thematic icons, simplified infographics, and illustrations of abstract concepts that make your knowledge base more accessible and engaging. This guide provides you with optimized prompts to systematically generate quality visuals intended to enrich your documentation, internal wikis, help centers, and training materials.

Claude Prompt for Contract Analysis

Contract analysis is a complex task that requires careful reading, solid legal understanding, and the ability to quickly identify critical clauses. Claude excels in this area due to its ability to process long documents, spot legal ambiguities, and structure a clear and actionable analysis. Whether you are an entrepreneur signing a commercial lease, a freelancer reviewing a service agreement, or a legal professional seeking a second look at a complex deal, Claude can save you hours of analysis while reducing the risk of overlooking a problematic clause. AI does not replace a lawyer, but it serves as a remarkably effective first filter to identify points of attention, understand the implications of each clause, and prepare your questions before legal consultation. By structuring your prompt correctly, you will obtain a methodical analysis covering party obligations, termination clauses, penalties, risk areas, and potential negotiation points.

Prompt Claude to Create a Loyalty Program

Creating an effective loyalty program is a major strategic lever for any business looking to strengthen customer retention and increase customer lifetime value (LTV). However, designing a program that is attractive to customers, profitable for the company, and operationally viable requires cross-functional expertise in marketing, finance, and customer experience. Claude excels at this task by combining structured analysis of reward mechanics, a deep understanding of the psychological drivers of loyalty, and the ability to model financial impacts. Using a well-constructed prompt, you get a complete loyalty program including tier structures, point accumulation and redemption mechanics, exclusive benefits per level, and an estimated cost per loyal customer. Whether you're launching a program for an e-commerce store, a network of physical stores, or a subscription service, Claude tailors its recommendations to your sector, margin, and target customer base to produce an actionable and differentiating program.

Gemini Prompt to Create Instagram Stories

Instagram Stories have become an essential tool to capture your audience's attention. With over 500 million daily users, this ephemeral format requires striking visuals, catchy texts, and a narrative that makes people want to swipe. Gemini, Google's AI, proves to be a powerful ally to create professional stories without spending hours on content creation. Thanks to its textual and visual generation capabilities, Gemini can help you write magnetic hooks, structure coherent story sequences, propose engaging scripts, and even suggest visual palettes suited to your brand identity. Whether you are a community manager, entrepreneur, or content creator, using Gemini for your stories allows you to maintain a regular publishing cadence while preserving a high level of quality. This prompt has been designed to fully leverage Gemini's strengths in creating Instagram Stories that generate engagement, DM responses, and conversions. It integrates best practices for vertical format, narrative codes of high-performing stories, and copywriting techniques adapted for mobile.

Gemini Prompt for Writing a Thesis

Writing a thesis is one of the most demanding academic exercises: structuring complex thoughts, articulating a relevant research question, mobilizing reliable sources, and producing coherent argumentation over several dozen pages. Gemini, Google's artificial intelligence model, proves to be a particularly powerful assistant for supporting each stage of this process. Thanks to its ability to handle long contexts and synthesize information from multiple fields, Gemini can help you refine your research question, build a detailed outline, write entire sections, and even rephrase your passages to improve academic clarity. The goal is not to delegate intellectual reflection to AI, but to use it as a tool for acceleration and structuring. A good prompt transforms Gemini into a thesis supervisor available 24/7, capable of challenging your ideas, suggesting angles of analysis, and helping you maintain argumentative coherence throughout your work. Here is how to formulate your prompts to get the most out of it.

Midjourney Prompt for Creating a Presentation

Midjourney is a powerful tool for generating striking visuals that transform your professional presentations. Instead of being limited to generic stock images or standard PowerPoint templates, you can create custom illustrations, consistent backgrounds, and unique graphic elements that capture your audience's attention. Whether you're preparing a pitch deck for investors, an internal presentation, or training materials, Midjourney lets you produce visuals aligned with your brand identity and message. The main challenge is maintaining visual consistency across all slides: same color palette, same graphic style, same level of detail. A good Midjourney prompt for a presentation must therefore specify not only the image subject, but also the artistic style, the slide-appropriate format, the dominant colors, and the desired mood. In this guide, you'll find an optimized main prompt along with variants suited to your level of expertise, to create visually memorable presentations that enhance your credibility and make your key ideas easier to understand.

Gemini Prompt for Analyzing an Annual Report

Annual reports are dense documents, often dozens or hundreds of pages long, mixing financial data, strategic analyses, governance notes, and future projections. Manual analysis requires hours of careful reading and multidisciplinary expertise. Gemini, with its extended context window and ability to process long documents, is particularly well-suited for this task. By crafting a structured prompt, you can extract key performance indicators in seconds, identify risks mentioned by management, compare results to previous periods, and summarize the company's strategy. Whether you are a financial analyst, individual investor, economic journalist, or finance student, this approach saves considerable time while providing a rigorous overview. The prompt presented here is designed to leverage Gemini's multimodal capabilities, especially its native PDF reading, to produce a structured, data-driven, and immediately actionable analysis.

Sora Prompt for Generating Python Code

Sora, developed by OpenAI, is primarily known as a text-to-video generation model. However, within the OpenAI ecosystem, prompt engineering techniques applied to Sora can be adapted to structure clear and precise requests, including for generating Python code through associated conversational interfaces. Mastering the art of prompting with OpenAI tools allows obtaining functional, well-structured, and documented Python code. The main challenge lies in formulating detailed enough instructions so that the model understands the technical context, project constraints, and expected complexity level. A well-crafted prompt for generating Python code should include the target language, desired programming paradigm, libraries to use, and expected output format. In this guide, we offer optimized and tested prompts to get professional-quality Python code, whether you are a beginner looking to learn or an experienced developer wanting to speed up your development workflow.

Midjourney Prompt for Organizing a Project

Midjourney is primarily known for generating artistic images, but it proves to be a powerful tool for creating impactful project management visuals. Whether you need planning infographics, visual dashboards, stylized Gantt charts, or creative mind maps, Midjourney transforms your organizational concepts into clear and engaging visual representations. Organizing a project requires an overview that conventional tools sometimes struggle to communicate effectively. With well-crafted prompts, you can generate visuals that synthesize key steps, task dependencies, and important milestones of your project. These images then serve as powerful communication aids during team meetings, stakeholder presentations, or simply as personal visual guides to keep on track. In this guide, you will discover one optimized main prompt as well as several variants adapted to your level of expertise with Midjourney, to transform your project organization into professional and inspiring visuals.