Sources checked
What should you compare first?
Start with one recurring task: summarizing a document, researching a question, or preparing a draft. OpenAI, Anthropic, and Google offer AI assistants with different tools and account options. Their product pages describe capabilities; they do not establish which assistant will work best for your workflow.
Separate the assistant from its underlying model. An answer can depend on the selected model, enabled search, supplied files, and account limits. Record those conditions before comparing results.
Use this comparison worksheet
The following is an AiLookout evaluation template, not a report of tests we performed. Run it on a document or task you are allowed to share.
| Task | What to inspect | What to record |
|---|---|---|
| Summarize one document | Missing qualifications and invented details | Corrections needed |
| Research one current question | Whether each citation supports its claim | Unsupported claims |
| Revise one draft | Whether instructions survive revisions | Editing time |
| Repeat a weekly workflow | Available tools and usage limits | Work completed within your budget |
How do you run a fair trial?
Choose a small set of representative examples and define a pass before seeing the answers. Keep your inputs consistent. Repeat a task when reliability matters; one good response can be luck.
- Write the required output and unacceptable errors.
- Supply the same documents and instructions to each assistant.
- Save the output, model selection, date, and enabled tools.
- Check facts against the original source, then measure your editing time.
- Choose the assistant that completes your task within your constraints.
What can make the comparison misleading?
A paid account with document tools is not a fair match for an account without them. Likewise, comparing a search-enabled answer with an answer generated from memory measures more than model quality.
Recheck official product pages before subscribing. Features, availability, and limits change. This guide supplies a decision method rather than a permanent ranking.
Common questions
Should I pay for several AI assistants?
Only if distinct workflows justify the cost. Start with the task you use most, test it, and add another service when it solves a clear problem.
Does a benchmark winner always give the best answer?
No. A benchmark covers particular tasks and conditions. Your files, tools, and required output may differ; use benchmarks as context for your own trial.
What to remember
Choose the assistant that leaves you with dependable finished work and the least necessary correction.
Sources & further reading
How this story was made
Written by Kristian Kostov with AI assistance and checked against the linked sources. Company performance claims are attributed to the company. Analysis reflects AiLookout’s interpretation; we have not independently tested the products discussed. Cover photography is illustrative and does not depict the specific announcement or product.
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