If you're looking for a tool to create and manage prompts for things like writing and marketing, GeneratedBy is a great option. It's got a user-friendly prompt editor and a variety of optimization tools to fine-tune language models and variables. It's geared for digital workers, supports multimodal content and integrates with Large Language Models, so it's great for prompts for SEO articles, cold emailing and marketing slogans.
Another great option is Promptitude, which lets you create, test and iterate on GPT prompts with a secure interface. It supports personalized results, reusable prompts and secure sharing, so it's good for use cases like user onboarding, AI text generation and interactive lead magnets. The service is designed to be future-proof, with support for multiple AI providers and models.
PROMPTMETHEUS is also worth a look. The service is geared for writing, testing, optimizing and deploying prompts to more than 80 Large Language Models from different providers. It's got tools for crafting and refining prompts, selecting models and deploying to custom endpoints, so it's easy to integrate with third-party services like Notion and Zapier.
If you want a more collaborative environment, Prompt Studio offers a team collaboration space to create, test and share LLM-powered features. With features like a collaborative text editor, customizable templates and a managed AI backend for deployment, it's great for automating legal document checks and plugging AI into existing workflows.