Quartzite

The AI chat for creative writingcomplex tasks, research, learning, strategic thinking, creative writingQuartzite is an advanced chat interface that helps you to get the most out of Language Models.Get startedThe best AI Models in one appOpus 4.5NEW!Gemini 3NEW!GPT-5.1o3-pro & o3GPT-5OpenRouterDeepSeekPerplexity AILlama 3MistralDon't see a model you use? Submit a feature requestAdvanced prompt editorEasily craft complex prompts using Quartzite’s intuitive Markdown editor. Save drafts and submit prompts with ease.Version historyImprove your prompts by experimenting with various iterations and model configurations, tracked seamlessly with version history.Cost previewPreview token usage and get an estimate of the cost of your prompt before you run it.Build your Template repositorySay goodbye to repetitive prompts. Build and manage your template library or use our default one.Prompt OptimizerAutomatically apply the best Prompt Engineering practices to your prompts with AI. Try our free version.Variables & dataQuickly fill templates with variables or import CSV data for rapid creation of multiple versions.Data exportDownload your prompts and outputs in various file formats for further use.Early Supporter PlanGet exclusive early access at a special price (locked in forever). Join our community of beta users and help shape the future of the platform.What's includedUnlock all featuresLifetime price guarantee - lock in this rate foreverOnboarding call to set up your account (optional)Chat with the team on Discord$7.99$3.99/ monthClaim Early AccessSecure payment via Lemon Squeezy (Stripe)What our users say about Quartzite"Using the API-powered Quartzite, my API usage is much lower than the monthly cost of the flagship AI products. Quartzite basically paid for itself already in the first month. The extra prompting tools that Quartzite provides on top of this huge benefit is the icing on the cake."Phil V.Full-Stack DeveloperFAQsCan I use all the models for free?Quartzite allows you to access all the listed models via a unified interface. However, we don't cover the cost of model usage. This means, that you will be paying a little bit to use the various models. However, do not worry - accessing models this way is way cheaper than a subscription to ChatGPT Plus (or similar). That is why a lot of users choose Quartzite over ChatGPT Plus or Claude subscriptions (on average, we spend less than $2-3/month on model usage). On the plus side, you don't have to choose one subscription or another, but you have access to all the models.Do I need my own API key?Yes, at the moment Quartzite works by bringing your own API key (see next FAQ for more information). In the future, we would like to offer the possibility of buying credits directly via Quartzite, but that's not available yet. If you are interested in such a feature, please let us know, so that we can contact you once we release it. In the meantime, we provide free support in order to set up your Quartzite account - just contact us if you need assistance.What's an "API key"?An API key is a code (similar to a password) that allows you to interact with some AI models. For example, with the OpenAI API key, you can interact with GPT-4 in other apps, such as Quartzite. With an API key, you pay only for your usage of the AI, rather than paying for a subscription. Doing this usually results in lower costs compared to paying for tools such as ChatGPT Plus (we personally spend less than $2-3/month for our usage). If all of this is new to you, don't worry - we have some guides on how to get the API key, and we'll be happy to support you if you need assistance.How is my data handled?Quartzite AI takes privacy and security seriously. The API keys added via Quartzite are encrypted by default, and your data is safely stored. If you prefer, you can even disable cloud-sync for maximum privacy, to have your data stored solely in your browser.How is this different from ChatGPT and OpenAI playground?Quartzite AI gives you access to many more AI models (e.g. Claude 3 Opus, Gemini Pro, Perplexity). Additionally, Quartzite AI offers a range of features not available in ChatGPT, including templates, version comparison, markdown editor, variables, and more. We believe these significantly enhance productivity and improve the experience of working with Language Models.Quartzite: write advanced AI prompts, faster.We value your privacyOur website uses essential cookies to ensure its proper operation and tracking cookies to understand how you interact with it. Tracking will be enabled only upon your explicit consent.Accept allReject allManage Individual preferences --- Introduction1. Account Setup1.1. Account and License1.2. Add AI models2. Getting Started2.1. Submitting Prompts2.2. Version history2.3. Using templates3. Advanced use3.1. Model settings3.2. Prompt variables3.3. Editor formatting3.4. Few-Shot PromptingPluginsDefault PluginsGoogle Search PluginLightIntroductionAbout Quartzite Quartzite is an AI productivity app / Prompt IDE that allows you to interact with Large Language Models (LLMs) such as Open AI’s GPT-4, or Google’s Gemini. Features Custom template library: create and manage your own prompt templates. Version history: Quartzite stores a copy of your chat every time you submit it. This way, you can easily create different versions, compare the best output, and roll back to a previous state at any time. Model settings: access all model settings for advanced usage (i.e. Temperature, Top P, Top K, etc.) Cost estimator: get an estimation of a prompt's completion cost (for paid models). Draft mode: autosave prompts while writing, and submit when when you're ready. Advanced prompt editor: write prompts with markdown support, and edit code snippets with ease. Prompt variables: create variables containing text or CSV data to reuse across prompts. Export data: easily export your chat for further use. ...and more coming soon. Do you have a feature request? Let us know here.1.1. Account and License --- Prompt optimizer for Language Models freeThis tool is a free extract of Quartzite's Prompt Optimizer feature (integrated in the app). It helps you optimize your prompt for a given task by applying the best practices in Prompt Engineering.Prompt to optimizeWrite a prompt of at least 10 characters to get started.VariablesPrompt variables are snippets of text that you can dynamically fill later in order to make your prompt reusable.Auto-generate variables to useOptimize PromptPrompt Optimizer version 2.3.0 - Last updated: 19th February 2026Optimized promptCopy to clipboardClear AllThe optimized prompt will be generated here.How to useStart by writing the prompt you want to optimize. You can write it in just a couple of sentences, and the tool will expand it to add more details.Then, add the variables. These are snippets of text that you want to fill in later. For example, if you are creating a prompt to generate an email to answer a customer complaint, you might want to add the variables: customer name, customer email, and the complaint. This allows you to generate a prompt that can be reused for multiple customers. If you use Quartzite, you can leverage the Custom Template feature to quickly reuse it in the future.It's generally a good idea to start by letting the tool automatically generate the variables for you. Then, when you have a clearer idea about which variables you need, you can add them manually.Generate the prompt (this step might take up to 10 seconds).Lastly, copy-paste the prompt and fill in the variables, you are then ready to submit it.RecommendationsFor best results, write your original prompt in English (other languages are not fully supported yet).Start with a simple prompt - usually, 1 or 2 sentences are enough for the Prompt Optimizer to generate a well-performing prompt.Autogenerate the variables the first time. This way you can see which ones the Prompt Optimizer recommends to add, and then eventually adjust and add your own later to make it more precise.Don't overcomplicate. The Prompt Optimizer doesn't handle well long prompt. It's better to keep it simple and add more context later with the help of variables. For example, rather than feeding a long prompt asking to debug a specific snippet of code, just add: "Debug this snippet of code" as the prompt and add a variable called "Code Snippet" (that you will fill later when running the optimized prompt).About QuartziteQuartzite is a prompt editor that allows you to get the most out of Language Models and AI. It's a tool that helps you create high-quality prompts for your AI tasks.You can find the Prompt Optimizator as part of Quartzite, together with prompt templates, version history, text variables, and more. Learn more about Quartzite.Free Prompt optimizer for Language Models (LLMs)We value your privacyOur website uses essential cookies to ensure its proper operation and tracking cookies to understand how you interact with it. Tracking will be enabled only upon your explicit consent.Accept allReject allManage Individual preferences --- Release NotesStay up to date with the latest features, improvements, and bug fixes in Quartzite AI.v0.0.8July 25, 2025Enhanced Model Selection & System Improvements 🎯 Improved Model Selector Experience Better visual design: Redesigned model selector dropdown with provider logos and pricing information Enhanced organization: Models are now grouped by provider with clear visual indicators Improved usability: Added "show all" toggle and better filtering options for easier model discovery Provider branding: Added logos for OpenAI, Anthropic, Google, OpenRouter, and Perplexity for better visual recognition 📄 Document System Enhancements Reusable document preview: Document preview sheet is now reusable across different pages Project page integration: Added document preview functionality to project pages for better document management Improved accessibility: Better document viewing experience with consistent UI patterns 🔧 System Prompt & Variables Fixed Bug: Variables in system prompts are now correctly parsed and rendered v0.0.7July 13, 2025Document System Improvements 📝 Enhanced Document Uploader Paste text directly: Copy and paste text snippets, notes, or research findings and save them as searchable documents without needing files Multiple uploads: Upload several documents at once with improved drag & drop support Better interface: Streamlined upload dialog with clearer options and progress feedback 🔍 Smarter Document Retrieval Higher quality results: Improved search algorithms find more relevant information from your documents More efficient processing: Optimized approach uses fewer tokens while delivering better answers Targeted search: AI can now search specific documents when you need focused information ✨ Auto-generated Summaries Documents now get AI-generated summaries automatically, making it easier to understand what each document contains and helping the AI find relevant information faster.We value your privacyOur website uses essential cookies to ensure its proper operation and tracking cookies to understand how you interact with it. Tracking will be enabled only upon your explicit consent.Accept allReject allManage Individual preferences