AI Writing
AI Humanizers vs. AI Rewriters — What’s the Difference?
Review the key differences between AI humanizers and AI rewriters, and whether or not they are detectable by AI content checkers.
When you think about the concept of generative AI, your mind likely pictures tools like Claude, ChatGPT, or Google Gemini, all of which are well-known for their content-generation features.
Each of these tools uses generative AI by taking prompts and can turn them into text-based responses.
However, generative AI has also led to other popular uses through AI humanizers and AI rewriters.
Here, we’ll take you through AI humanizers vs. AI rewriters, establishing key differences and whether or not they are detectable by AI content detectors.
First off, let’s start by looking at each type of tool in more detail, outlining their differences and why they have become so popular.
Firstly, let’s focus on AI humanizers. By definition, AI humanizers attempt to make your AI content sound more natural and engaging.
Generative AI tools use large language models and natural language processors to produce results, so the output can tend to sound rather formulaic and, therefore, quite stale.
In many instances, that type of content needs to be amended to be more insightful and engaging.
Rather than spending time doing this manually, many humanizers claim they can do this for you, using the very tools and processes that cause the formulaic content in the first place.
As you can imagine, this process is not particularly effective, which we will touch on later in this piece.
AI rewriters, on the other hand, generally market themselves as tools that help structure content, tidy up grammar, and rewrite it in a better format.
AI rewriters have a wider use case than AI humanizers, especially for those who are looking to refine the tone of content, such as making it more conversational or formal.
However, these tools also come with concerns and drawbacks, such as producing disengaging content output.
With all that in mind, it’s also important to review whether or not the content generated by AI humanizers and AI rewriters is detectable.
For the test, we first generated an article in ChatGPT that was 100% AI-generated.
Below is the prompt we used:
Here is the Originality.ai AI Detection Score for the ChatGPT content — 100% Confidence that it is Likely AI.
For our AI humanizer test, we will use Humbot, one of the most popular and heavily marketed AI humanizer tools.
Now, we can take that text initially generated by ChatGPT and run it through Humbot to get our “humanized” version.
Then, we can run it through our AI content detector.
The Originality.ai AI Detector identified the “humanized” text as Likely AI with 100% Confidence.
A quick look at the actual content highlights the main issue with many of these tools:
The text is riddled with errors, random capital letters, incorrect grammar, and so on.
This poor grammar is a method that Humbot (and many other AI humanizer tools) use to try and trick users so that it can bypass detection. However, in reality, it just turns content into a jumble of words that no longer makes a clear sentence.
You can read our full review of Humbot AI here.
So, what about AI rewriters? Are they any more effective?
Let’s take our YouTube example again and run the ChatGPT-generated version through the Ahrefs paragraph rewriter.
Now we can check that version in Originality.ai.
The Originality.ai AI Detector identified the text with 100% Confidence as Likely AI.
As you can see from the results, while Ahrefs' output was much more coherent than Humbot AI, Originality.ai managed to detect the content with 100% Confidence that it was Likely AI.
In summary, while there are certainly some differences between AI humanizers and AI rewriters, there is one very common feature — both AI humanizers and AI rewriting outputs are still detectable as AI content.
Similar to generative AI tools, AI humanizers and rewriters can be useful tools in some use cases but certainly can’t be treated as writing replacements.
For the best results using such tools, we recommend using them sparingly and as support rather than as a replacement.
Check out popular AI rewriter and humanizer tools we’ve reviewed:
Neither AI humanizers nor rewriters are good for SEO as the content they both produce could get flagged as AI spam by Google, leading to potentially even bigger problems and Google penalties.
As with all AI-generated content, including that of ChatGPT, the content output always requires detailed editing to ensure it matches your brand tone of voice and provides true value to your audience.