The quick read
- Give each assistant equivalent material and judge factual fidelity, useful structure and the amount of correction needed.
- Prefer the product that meets your quality threshold with less review effort in the work you do repeatedly.
Define the work
Both products are broad AI assistants, and their capabilities depend on the current model, plan and enabled tools. Choose several representative jobs: a source-based summary, a document review and a draft for a real audience. Avoid making the comparison hinge on one impressive response.
Use the same rubric
Give each assistant equivalent material and judge factual fidelity, useful structure and the amount of correction needed. Record whether a source was actually checked. For a complex task, measure the completed workflow rather than only response speed.
Choose for the recurring task
Prefer the product that meets your quality threshold with less review effort in the work you do repeatedly. Consider document handling, integrations and operating controls separately from writing style. Retest after major updates. This is a decision framework, not a hands-on benchmark or a claim that either assistant wins every category. A good choice should remain explainable through evidence from your own workflow.
Sources & notes
An editorial decision framework, not a scored benchmark or hands-on test.
chatgpt.com — official reference
anthropic.com — official reference
Sources reviewed for the September 2026 launch edition.