Plans

Two plans. Both free for now.

Quartz Frontier is $30 a month. While Quartz grows, every month is 100% off for everyone, applied for you.

Quartz Core

For everyday questions.

$0a month

Free, always.

Three AIs answering side by side: Claude Sonnet 5, GPT-5.6 Terra and Gemini 3.8 Flash
Chat, documents and web search
Share a chat or a document with anyone
Export to Word, PDF and Google Drive

Recommended

For the questions that matter most.

$30a month

Included with every account right now.

The most capable model of each family: Claude Opus 5, GPT-5.6 Sol and Gemini 3.8 Flash
Everything in Core
A new 100% off code every month, and an email each time
Cancel any time from Settings

Why is Frontier free right now?: We want people using the best models while Quartz is young. The regular price is $30 a month, and for now every month comes with a 100% off code that is applied for you.
Do I need a card?: No. The first month’s 100% off is applied at checkout, so no payment method is asked for.
What happens each month?: 5 days before your month renews, we apply the next 100% off and email you to say so. Nothing changes and nothing is charged.
Could that change?: If Frontier ever starts costing money, you will hear from us by email well before, and you can cancel any time from Settings.
What is the difference between the plans?: Core runs the strong, fast model of each family. Frontier runs each family’s most capable model. Everything else is the same.