Prompt Mixer

Prompt Mixer is a desktop app and collaborative workspace built for managers, engineers, and data experts who want to take AI feature development seriously. If you've ever struggled to keep track of which prompt worked best, or spent hours testing the same idea across different models, Prompt Mixer is the tool you've been missing. It lets you create, version, and test chains of prompts across multiple ML models and connections — all in one place. Write prompts in Markdown, connect your datasets, and evaluate results using both built-in and custom metrics. Automatic version control means you'll never lose a breakthrough prompt again.