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-6 Sol and Gemini 3.8 Flash
- Follow up with any answer, and see where they agree and differ
- Attach files, and let the models search the web and read pages
- Share a chat with anyone by link
Quartz Frontier
Recommended
For the questions that matter most.
$30a month
100% off for now. You pay $0.
- The most capable model of each family: Claude Opus 5.5, GPT-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
A few practical questions
- 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.