Prompt Libraries

Marketplace to buy/sell ready-made prompts for image and text models

Searchable prompt library focused on image-model prompts

Chrome extension packing curated ChatGPT prompt templates

Prompt CMS for versioning, testing, and releasing prompts

Open-source CLI for prompt evals, regressions, and red-teaming

Open-source LLM observability with prompt management

Open-source LLMOps playground for prompt experimentation

Git-style prompt registry and sharing for teams

Open-source prompt manager for production prompt loops

Eval-first platform gating prompt changes on scores

LangChain-native tracing, datasets, and prompt hubs

Official OpenAI UI to iterate prompts, tools, and models

Anthropic workbench for Claude prompts and evals

Browser playground for Gemini prompts and multimodal tests

Community-curated ChatGPT prompt collection (prompts.chat)

Community prompt sharing and discovery feed

Curated premium prompt packs and courses for creators

Search engine for Stable Diffusion images and their prompts

Hosted playground for open-weight models via Together

Web UI to run model demos and prompt public models

Low-latency generative model playground and APIs

Azure tooling to author, evaluate, and deploy prompt flows

AI gateway with prompt library and observability hooks

LLM observability with prompt tracking and caching

Comet’s open-source LLM evaluation and prompt library

Framework to compile and optimize prompts programmatically

Desktop app to run local LLMs with a ChatGPT-like prompt UI

Visual prompt IDE with modular prompt building blocks