The difference in practice
| What matters | ChatGPT | Claude |
|---|---|---|
| Drafting surface | Canvas | Artifacts |
| Organizing context | Projects with files and instructions | Projects with knowledge and instructions |
| What to evaluate | The tools and revision flow for your task | The artifact and conversation flow for your task |
| What this page does not establish | A universal quality or speed advantage | A universal quality or speed advantage |
Scroll the table sideways to compare.
Sources:OpenAI: ChatGPT capabilitiesOpenAI: Projects in ChatGPTAnthropic: Claude artifactsAnthropic: Claude projects
A ten-minute comparison you can actually use
Choose a page of work you understand well enough to judge. Give each tool the same audience, goal, background, and constraint. Ask for the most important weakness, then ask it to improve that one part.
Read the changes without rewarding length or confidence. Did the answer preserve your meaning? Did it introduce an unsupported claim? Did it explain a tradeoff you had missed? Those are more useful signals than a dramatic opening paragraph.
A question to start with
If they disagree, find the assumption
Disagreement can come from different interpretations of the task, different assumptions, or an error. Ask each tool what evidence would change its recommendation. Look for the point on which the decision actually turns.
Agreement is useful too, but it is not independent verification. Keep original sources close and check the claims that carry the argument.
When comparing becomes your normal workflow
You can keep using both products separately. If moving between them interrupts your writing, Quartz is another workflow to evaluate: compare model responses around the same document, follow up, and bring back selected text.
This is Quartz’s editorial perspective, not a controlled benchmark. Feature availability and plans change; the linked documentation is the reference for current product details.
A few practical questions
The short ones are here. For anything else, ask below.
Can I start using Quartz today?
Quartz is opening access through its waitlist. You can explore the public demo, then join the waitlist for your own workspace. Signing in is for people who already have access.
Does agreement between AIs mean the answer is correct?
No. Agreement can help you identify a common view, but models can share an error. Check important claims against original evidence. Different answers are a reason to investigate, not a vote you have to follow.
Is this a benchmark of model intelligence?
No. This is a comparison of documented product workflows and Quartz’s current interface. We have not run a controlled performance benchmark or assigned model scores.