GPT-Prompt-Hub
Open-source, community-driven library of custom GPT prompts.
GPT-Prompt-Hub is a community-driven repository for collecting, sharing, and refining custom GPT prompts. 2.3K+ stars of curated prompts organized for reuse.
What is GPT-Prompt-Hub?
Prompt Hub (GPT-Prompt-Hub) is a curated open library of 222 battle-tested prompts for Claude, GPT, and Gemini by Shen Huang, where every prompt is a full structured brief — Role / Objective / Inputs / Output / Constraints / Example — designed for 2026-class models (Claude 4.x, GPT-5, Gemini 3) rather than 2023-style 'act as X' one-liners, organized into 10 real categories from Engineering and Marketing & SEO to Research and Writing.
Key features
- 222 prompts sorted into 10 categories: Engineering (25), Marketing & SEO (25), Business (25), Career (15), Creative (25), Health & Life (7), Learning (25), Productivity (25), Research (25), Writing (25), plus a 4-prompt Legacy archive
- Every prompt follows the same structured-brief format: Role / Objective / Inputs / Output / Constraints / Example
- Targeted at modern reasoning models — Claude 4.x, GPT-5, Gemini 3 — with `model: any` prompts working across all three
- Usage is copy-paste simple: drop the prompt into chat, replace ${variables} in the inputs block, go
- Curated and small enough to know every entry — explicitly not a 500+ scraped list with duplicates
- Chains with the companion lich-skills repo for automated workflows in Claude Code or Codex
- MIT license for original content; not affiliated with OpenAI, Anthropic, or Google
Who it's for
- Solo founders who ship alone and use LLMs as a full-stack team
- Engineers who want production-grade prompts (code review, architecture, test generation, simulators), not chat screenshots
- PMs and operators writing specs, reviews, and strategy docs (PRDs, lean canvases, runway plans)
- Marketers and SEOs running ads, content, and growth with AI leverage
- Researchers and students structuring reading, writing, and defenses
When not to use it
If you want a massive exhaustive dump of prompts to browse, an 'awesome list' serves that better — this hub deliberately stays small and curated. The prompts are also written for 2026-class reasoning models, so they're over-engineered for quick casual chats with older or lightweight models.
FAQ
How is Prompt Hub different from other 'act as X' prompt lists?
Each of its 222 prompts is a full structured brief (Role/Objective/Inputs/Output/Constraints/Example) built for 2026-class models like Claude 4.x, GPT-5, and Gemini 3 — curated into 10 categories, not 500+ scraped one-liners with duplicates.
How do I actually use a prompt from the hub?
Every prompt is a .md file with the same structure. Drop it into your chat with Claude, GPT, or Gemini, replace the ${variables} in the inputs block, and go. `model: any` prompts work across all three model families.
What categories does Prompt Hub cover?
10 categories: Engineering, Marketing & SEO, Business, Career, Creative, Health & Life, Learning, Productivity, Research, and Writing — plus a small unmaintained Legacy archive of 2024 custom GPTs.
Can I use these prompts commercially?
Original content is MIT-licensed. The prompts/legacy/ folder carries older attribution where applicable. The project is not affiliated with OpenAI, Anthropic, or Google.
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