Choose an AI assistant around the work you actually do.

STEP 01Define a representative task

Choose a recurring task with a result you can judge: rewriting a client brief, explaining a passage, or summarizing a non-sensitive document. Use the same input for each assistant. Avoid testing on confidential material before checking account settings and terms.

Write down three acceptance criteria. For a summary, these could be preserving the original claims, identifying uncertainty, and producing a usable structure. Decide which mistakes would make the output unacceptable.

STEP 02Run a controlled comparison

Give each assistant the same brief and the same source material. Record the date, product interface, available plan, and any features you enable. Different plans and connected tools can change what is being compared.

Keep the first result and the revisions. An impressive first answer is less valuable if it needs repeated corrections for your actual task. Note how much editing is needed, rather than assigning a score without a rubric.

STEP 03Inspect the evidence

Check statements against the original material. When an assistant supplies citations, open them and check whether they support the exact claim. A citation link is not proof by itself.

For coding or calculations, use relevant checks outside the conversation. If you cannot verify an important conclusion, treat it as unresolved.

STEP 04Evaluate the workflow

Compare the effort needed to provide context, revise outputs, export the result, and hand work to another person. Look at the whole task rather than a single answer.

Before paying, check current official pricing, usage limits, cancellation conditions, file support, and your organization’s access rules. This guide does not establish current plan entitlements.

STEP 05Make a reversible decision

Start with a shortlist and a low-commitment evaluation where available. Keep your task examples so you can repeat the comparison when your needs or the products change.

The expected outcome is a documented decision for one workflow. It is not a universal ranking of assistants. Common failures include inconsistent inputs, judging style as accuracy, and treating an available feature as equally capable across all products.

A brief to adapt

Use this as a starting structure and replace the details with your task. It is not a guarantee of any tool’s output.

Task: Summarize the supplied project brief.
Keep the original meaning. Separate facts from assumptions.
Return: objective, constraints, unresolved questions, next actions.
Do not add facts that are not in the brief.

Explore the tools and their sources

ChatGPT profile · Official product information ↗

Claude profile · Official product information ↗

Gemini profile · Official product information ↗

Microsoft Copilot profile · Official product information ↗

Linked product sources were checked for identity and broad positioning on 2026-11-05. The steps above are original editorial advice, not vendor-specific documentation.