Question: Is there a service that offers a large library of prompts for different use cases and allows me to customize them?

If you're looking for a service that has a big library of prompts for different use cases and lets you customize them, PromptBase is a great option. It has a gargantuan library of more than 130,000 templates created by vetted people, and it works with AI models like Midjourney, ChatGPT, DALL·E and Stable Diffusion. You can use prewritten templates, upload your own prompts to sell, or build AI apps that generate all sorts of content, from stickers to videos.

Another contender is PROMPTMETHEUS, which offers tools to write, test, optimize and run prompts on more than 80 Large Language Models (LLMs). It includes a prompt toolbox, tools to select the best models, test performance, and run prompts to custom endpoints, so you can integrate with tools like Notion, Zapier and Airtable. The service offers different pricing levels for different needs, including a free level for testing.

OctiAI is another option, particularly if you need a higher-level AI prompt generator that can be tuned for specific use cases. It supports more than 15 of the biggest AI models and includes tools like cross-platform support, prompt optimization and an AI discord community for collaboration. The service is geared for businesses and professionals who want to improve AI tool productivity and automate some of their work.

Last, AIPRM offers a large library of more than 70,000 prompts, all carefully created and vetted by an AI enthusiast community. It offers tools like prompt management, custom tone and writing styles, and verified prompts. AIPRM is designed to let you create, manage and reuse prompts easily, which can be useful for maintaining a consistent brand voice and avoiding content creation tedium.