For a large collection of prompts to squeeze the most out of large language models like ChatGPT, PROMPTMETHEUS is a great option. The service hosts more than 80 Large Language Models from multiple sources and has a prompt toolbox to create and edit prompts. It also has features like composability, cost estimation, data export and collaboration, and can be integrated with third-party services like Notion, Zapier and Airtable.
Another useful option is AIPRM, which offers a library of more than 4,500 public and 70,000 private prompts. The tool is geared for people who need to manage and reuse prompts, with tools like prompt management, custom tones and verified prompts. AIPRM is geared for content creators and brands that want to maintain a consistent voice.
PromptBase offers a large library of more than 130,000 templates from vetted creators that can be used with AI models like ChatGPT. You can browse templates others have written, upload your own prompts, and even build AI apps that create stickers, videos and other content. The service is geared for making content creation more productive and less tedious.
For people who want a relatively simple service that's geared for creating and optimizing AI prompts, GeneratedBy is also worth a look. It's got a prompt editor, support for multimodal content, and integration with several LLMs. You can get ideas from prebuilt prompts and build micro-SaaS apps, too, so it's adaptable for different situations.