Your favorite lLMs. A Single chat.

Use GPT, Claude, and Gemini in a single workspace. Ground every answer in Infobase and keep tone tight with Brand Voice. That way, your replies are fast, accurate, and always on-brand.

Let's Chat.

Trusted by 17M+ million people at companies like

Product Overview

Switch models without switching tools

Choose any of the 3 most popular LLMs.

Add the context you need with Infobase.

Build one or many codified Brand Voices that you can use immediately.

Real Time Insights

Derby streamlines your inbox with smart sorting, prioritization, and automation. Manage emails effortlessly and focus on what truly matters.

Smooth Email Management

Derby streamlines your inbox with smart sorting, prioritization, and automation. Manage emails effortlessly and focus on what truly matters.

GPT, Claude, & Gemini.

Instead of spreading your thoughts, prompts, and data across all three, create a centralized workspace that allows you to pick and choose what works best for you.

Core Features

The Fastest Way to the Best Answer

Drafts that know your business

Infobase injects product and policy details so responses are accurate and usable the first time.

Keep the voice consistent

Brand Voice applies your style rules automatically, from quick replies to full paragraphs.

Test & learn quickly

Swap models by prompt to see what performs best for ideation, structure, or long-form.

Hand off with confidence

Share chats and pinned Infobase packs so teammates get the same, on-brand answers.

All-in-One Solution

Like building an intern in 3 easy steps

1. Choose Your Model

2. Add Context with Infobase

3. Define your voice

Still hopping tools? Work faster in a single chat that combines model choice, knowledge grounding, and brand-true output.

Learn More

1. Choose your model

Right now, LLMs are fighting for you to choose between them. But we believe that when given a choice, sometimes it's best to choose "all of the above."

2 . add Context with Infobase

Add documents to your knowledge base that you can pull up with a single hashtag.

3. Define your voice

Have our Brand Voice analyze your favorite bits of copy and finally have your AI outputs sound like you.

Stop paying for 3 separate chat tools.

Sign up with Copy.ai to get access to the latest models from OpenAI, Anthropic, and Google. It's like that old saying, "If you can't beat 'em, throw 'em all into a single platform for a better user experience."