Ad Copy Generation Engine
It is not that you cannot write it; it is that you do not know which line will get clicked
Enter a product title and description, and the system extracts key information and generates 5 ad copy variants. Calibrated using actual click performance from 3,000 sets, with API integration, around 1.6 元 per copy.
The bottleneck in copywriting is not output, but judgement
Writing three ad copy lines for each of 5,000 SKUs means 15,000 lines. Humans cannot write that much; there is no debate about that.
What is debatable is what comes next: after the copy is written, how do you know which line is worth putting money behind?
Right now, most people use general-purpose AI to generate it. It can indeed write, and it writes fairly well. The problem is —
It has not seen the campaign results for your category
It does not know whether “limited time” or “limited quantity” works better with your audience
The logic is different each time it is generated, so you cannot accumulate it.
The output length is not controlled, and it often exceeds the character limit when pasted into the ad backend.
The value of a copywriting tool is not that it can write, but that it knows what works and applies the same standards every time.
Three steps
- 1
Extract, do not label
Analyse product titles and descriptions to extract the category, specifications, selling points and usable differentiation information. This step determines whether the copy gets to the point — if the information is captured incorrectly, even the most polished writing afterwards is useless.
- 2
Generate variants based on effective patterns
The generation logic is trained and calibrated using the actual click performance of an accumulated 3,000 sets of ad copy, not based on assumptions from a general language model. Output length is already aligned with ad platform character limits, so no additional trimming is needed.
- 3
Generate 5 items in one call
A single API call outputs 5 copy variants, which can go directly into the ad delivery workflow or asset production workflow.
Specifications
| Item | Specification |
|---|---|
| Input | Product title and description |
| Output | 5 ad copy variants per call |
| Language | Traditional Chinese only |
| Length control | Aligned with ad platform character limits |
| Tone specification | Not supported |
| Generation basis | Actual click performance of 3,000 sets of ad copy |
| Data usage | Input data is used only for the current generation and is not included in model training |
| API | Token authentication |
| Billing | Billed based on actual call volume, NT$8 per 5 items |
Why not use general-purpose AI directly
| Item | General-purpose AI generation tool | AdCopy Engine |
|---|---|---|
| Basis for judgement | General language knowledge | 3,000 sets of actual click performance |
| Consistency | Different generation logic each time | Uses the same set of standards every time |
| Length control | Uncontrolled, often exceeds platform limits | Aligned with advertising platform character limits |
| Tone can be specified | Yes | Not supported |
| System integration | Needs to be handled by yourself | API, Token authentication |
| Billing | By token or subscription | Based on actual call volume, NT$8 per 5 calls |
The difference is not whether it is well written, but the basis for judgment. General models infer based on linguistic knowledge; this system generates based on results that were actually clicked.
Suitable
- E-commerce businesses and channels with many product items that need a large number of copy variants
- Teams that need to embed copy generation into listing or ad placement workflows
- Already running ads, but unsure which wording is effective
- Channels that need to let platform merchants generate copy on their own
Not suitable
- Need languages other than Traditional Chinese → not currently supported
- Need to specify tone, style, or emphasise specific selling points → specifying is not supported
- Need brand key visual copy or long-form content → this system is for ad copy variants
- Product data has not yet been structured → data sources must be processed first
Fees
| Item | Fee |
|---|---|
| Copy generation | NT$8／per 5 copy outputs (approx. 1.6 yuan per copy output) |
- Charged based on actual call volume, with no monthly fee, no seat fee, and no minimum usage.
- The above are the current prices and are reviewed and adjusted annually. After signing, the price at the time of signing is locked in until the end of the contract period; if pricing is reduced during the period, the reduced price applies.
Frequently Asked Questions
How is AdCopy Engine different from using ChatGPT directly?
Both deliver solid output quality; the difference lies in the basis for judgement.... [Read full content]
What do you input into AdCopy Engine, and what do you get?
Enter the product title and description, and a single call outputs 5 ad copy variants.
Will AdCopy Engine copy exceed the character limits of advertising platforms?
No, the output length is already aligned with the character limits of advertising platforms.
Which languages does AdCopy Engine support?
Currently, only Traditional Chinese is supported.
Can AdCopy Engine specify the tone or selling points to emphasise?
No.... [Read full content]
Run it on your products
Give us a batch of product titles and descriptions, and we will generate a set of copy for you to review. You will see directly whether it can capture the key points.
Book a system walkthrough