AI prompt library
40 free, copy-paste prompts for ChatGPT, Claude, and Gemini, plus a plain-English guide to setting your AI up properly. No sign-up, no paywall, nothing to install.
Prompt packs
Study and homework help prompts
Free copy-paste AI prompts that turn ChatGPT, Claude, or Gemini into a patient study partner: explain, quiz, summarize, and plan work you write yourself.
Better prompting basics
The simple prompting framework novices miss, as copy-paste templates. Get clearer, more reliable answers from ChatGPT, Claude, and Gemini. Free.
Writing and email prompts
Copy-paste AI prompts for clearer emails, better tone, and faster drafts. They rewrite and sharpen your writing without inventing facts. Free, for any AI tool.
Small business and marketing prompts
Free copy-paste AI prompts for social captions, product descriptions, ad copy, and customer replies. Keep your voice, save the time. Any AI tool.
Resume and job hunt prompts
Free copy-paste AI prompts to sharpen your resume, write a cover letter, and prep for interviews. They rework what is true and never invent experience.
Coding and debugging prompts
Free copy-paste AI prompts to explain code, find bugs, write tests, and review functions. Get a better pair programmer from ChatGPT, Claude, or Gemini.
How to set up your AI (ChatGPT, Claude, Gemini)
A good prompt gets you a good answer once. Setting your AI up properly gets you good answers every time, without re-typing the same context. Here is what the settings actually mean, in plain English.
Custom Instructions vs Projects vs agentic mode
- Custom Instructions are a note applied to every chat: who you are and how you want answers (tone, length, format). Set them once. Use them for the things you always want, like "keep answers short and skip the intro."
- Projects (or Gems) are a workspace for one topic, with their own instructions and files. Everything you chat about inside stays in that context. Use them for a class, a client, a book, or a product, so you do not paste the background every time.
- Agentic mode is when you let the AI take several steps toward a goal, such as browsing, running code, or using tools, instead of giving one answer. Use it for research or multi-step tasks, and be specific about the goal and the limits.
Rule of thumb: put how you always want it to behave in Custom Instructions, put everything about one topic in a Project or Gem, and switch to agentic mode only when the task genuinely has multiple steps.
ChatGPT
- Custom Instructions: in Settings, tell it about you and how to respond. Applies to every new chat.
- Projects: group related chats, files, and instructions in one place for a single topic.
- Custom GPTs: build a reusable assistant with fixed instructions and knowledge you can return to.
Claude
- Projects: add documents and a project instruction that applies to every chat inside, ideal for a body of knowledge.
- Styles and preferences: set a default writing style so replies match your voice without asking each time.
Gemini
- Gems: reusable custom assistants with instructions you set once and reuse.
- Saved info: facts about you it remembers across chats, so you skip the reintroductions.
How the packs work
Every prompt has a Copy button. Copy it, paste it into your AI tool, and fill in the parts in brackets like [topic] or [paste]. The prompts run entirely in your own AI account, so glunty makes no requests and sees none of your input. They are free to copy, use, and share.
Looking for more? Browse the full tool catalog, the AI tool cheat sheets, or the developer cheat sheets.