✦ Spellcraft



Merlin: GPT Assistant for VS Code.

First release: April 21, 2023.

A chat assistant for VS Code, to help with writing code, documentation, and more. GPT-3 access is free, and GPT-4 access is available with a license key.

Merlin Demo

GSH: A talking terminal shell.

First release: December 5, 2022.

You speak to your shell conversationally, and it responds using commands. It can take actions for you, help you with your work, write programs, and more.

Try it out! Demo GSH below by talking to the shell and preview the commands it would run in normal operation.

UPG: Natural language code generator and editor, optimized for stability.

First release: November 17, 2022.

Create, edit, explain, run, and autofix programs using natural language.

UPG Demo

GPTweets: Train a GPT-3 model to tweet like you.

First release: January 31, 2023.

Absurdly expensive to run, involves a custom fine-tuning pipeline. Profitable (but barely)!

GPTweets Demo


We also developed and maintain open source libraries that our products use.


First release: February 15, 2023.

Standardized hooks and components for working with OpenAI streams in a Next.js project.


First release: February 15, 2023.

Tools for working with OpenAI streams in Node.js/Edge/browser using TypeScript.

Our Team

You can read more about our team here.