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Which AI writing tool is best? A fair comparison using the same source material

Don’t use different prompts and different materials to make a ranking list. Fixed one original text, one writing requirement and five ratings, and then included the modification and export process.

This article was generated and organized by AI. Product functions and available solutions may change. Please refer to the current official description for specific capabilities.

Two pieces of paper with the same content are placed side by side under three colored labels, indicating that AI writing software should use the same material for a fair comparison.

Make the comparison method fair first

When asked "Which AI writing software is better?", the most common comparison method is to let several tools write a paragraph each, and then choose the one that is most pleasing to the eye based on feeling. This method seems straightforward, but in fact it is easy to make mistakes.

One tool received the complete material, while the other only received a subject line; one asked to write a public account notification, and the other only said "help me polish it"; what came out in the end was often a prompt, not a software.

A fair comparison must fix at least three things: original materials, writing requirements, and scoring criteria.

This material can be taken directly to the same test

You can directly copy the exercise material below and use it in each tool you plan to compare. It deliberately includes the date, address, quota and an undetermined item to facilitate checking whether the tool will miss or fill in the information indiscriminately.

The community library will reopen on September 6, and its address will still be the second floor of No. 18 Qinghe Road. The opening hours are adjusted to 9:00-18:00 from Tuesday to Sunday, and closed on Mondays. The children's reading area requires reservations after 16:30 every day, and each session is limited to 20 people. There is no charge for applying for the certificate, and readers must bring their valid ID. Whether the self-service book return cabinet can be used after the library is closed is still being debugged and will be announced later.

Send the exact same request to all tools:

Please rewrite the material into a WeChat notice sent to community residents, no more than 350 words. Keep all confirmed dates, addresses, times, quotas and certification requirements; undetermined information cannot be filled in again. Start with an opening sentence, then use bullet points to list the open arrangements, and finally remind the reader of anything that has not yet been determined. Don’t write slogans.

Don’t just look at the writing, check five things first

The first round is only generated once. Don't secretly add hints to a tool when you are not satisfied with the results. Compare the information in each completed article with the original text item by item, and then score according to the following five items.

  • Facts: Date, address, opening hours, number of people and certification requirements are all correct. If one fact is wrong, this article cannot be delivered directly.
  • Boundary: Have you announced that the self-service book return cabinet can be used without authorization, or provided phone numbers, registration entrances and activities that are not included in the materials?
  • Structure: Do the opening, bullet points, and final reminders appear as required, and can residents find key information quickly?
  • Language: Is there any fluff, repetition, over-enthusiastic promotional sentences, does it read like a normal announcement.
  • Modification: After pointing out a specific sentence, can the tool only change this part instead of re-writing the entire article.

The first four items refer to the first draft, and the fifth item refers to the most time-consuming rework in real work. If you only compare "who writes beautifully at first glance", you are likely to choose a tool that you have to start over every time you modify it.

What really widens the gap is often modifying the process

Several common software now provide workspaces that are more suitable for long text modification than chat boxes, but the focus of operations is different. The following only lists the abilities that have been officially disclosed and does not replace your own test with the same question.

  • ChatGPT Canvas: You can directly edit the text, select parts for tool processing, adjust the length, and restore previous versions. Good for revising between conversations and drafts.
  • Claude Artifacts: Put longer content that can be used independently in a separate window, supporting continued modification, switching versions, copying or downloading. Suitable for keeping both the chat process and the finished manuscript.
  • Gemini Canvas: You can edit documents directly, select parts to request modifications, adjust length and tone, and export to Google Docs. Suitable for people who continue to work in Google Docs.
  • Copilot in Word: You can rewrite selected content in the original document, compare multiple versions, replace or insert the results. Good for people whose deliverables are inherently Word files, but whether functionality appears depends on subscription and organizational settings.

These differences do not directly indicate who has the best writing skills, but they will determine whether you need to copy back and forth when revising the second and third drafts, whether you can retain the format of the original text, and whether you need to re-typeset the final delivery.

Finally, choose your delivery method

If you mainly draft from scratch, compare factual accuracy, structure and language first; if you already have a lot of work-in-progress, prioritize local modifications and version restoration; if the article must be submitted to Word or Google Docs, include export and format preservation in the results.

  1. Occasionally write short articles: a convenient general chat tool is usually enough.
  2. Frequently change long articles: It is more important to select local modifications, version switching and long article workspace.
  3. Team review: First check whether the original document, comments, permissions and collaboration process can be connected.
  4. The content involves facts: no matter which software scores high, keep the raw materials and check them one by one.

The most suitable AI writing software for you is not the one that writes a beautiful sentence at one time, but the one that uses the same real material for three consecutive rounds of revision, and still does not lose the facts, mess up the format, and does not make you do the typesetting one more time.

official information

The instructions on editing the workspace in this article are verified from the following official help page:

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