We Tested GPT-5 Content in an AI Detector | Here’s What Happened

In the last 5 years, OpenAI has launched a total of 6 GPT versions, and recently, GPT-5 was released in August 2025. Every time a new version is released, most writers question is whether GPT-5 has the capability to bypass AI detectors or not. As a writer, this came to my mind too, and I thought, Why not find the answer by testing so that I can get the exact answer?

OpenAI released the GPT-5 version on 7 August 2025, and since then, many doubts related to GPT-5 started circulating in the market, and most of the doubts arose regarding the writing capabilities of GPT-5, because GPT-5 is marketed as the “most capable writing collaborator yet.”

And I heard from many of my colleagues that GPT-5 talks like an expert human to a great extent, that too in a human tone, and it can easily adapt your style, and its personalization is much more than the previous version. So, in today’s detailed article, we will learn about the writing capabilities of GPT-5 and its working mechanisms.

Quick Summary

Many AI experts say that the content writing capabilities of GPT-5 are quite impressive, and it is much smarter than all the writing agents currently available, which can understand human emotions and tone. But users have always had the problem that ChatGPT's content can be detected by any of the top AI detectors.

That's why, after the arrival of GPT-5, many writers are hoping that maybe it can bypass AI detectors, and I am also quite curious to know about its real accuracy.

Our Focus in this article:

1. What is GPT-5 and what features do we get in it?
2. How does GPT-5 support creative writing?
3. Practical Test: We will test the content of GPT-5 through top AI detectors.

What is New with GPT-5 for Creative Writing?

OpenAi has projected GPT-5 as the best writing partner in its marketing, due to this GPT-5 is trending a lot in the writing community and as a writer I am also quite curious to check the creative writing capabilities of GPT-5, I have been testing GPT-5 for the last 2 weeks, on the basis of that I will tell you whatever I have experienced.

1. Better Handling of Complex Tasks

The basic chat capabilities were quite high in all the GPT versions of OpenAI, The reasoning models of GPT-4 also have the capabilities to handle lengthy tasks, but in the reasoning model, the user has to wait for 2-10 minutes for the final result.

Practical Test: So, to check the accuracy of GPT-5, I submitted multi-layered prompts in which I asked it to summarize a complex academic study in plain language and also gave the input that there should be creativity in it. Although GPT-5 took approximately 41 seconds, it gave me much better results while balancing depth and style.

2. Stronger Style Consistency

ChatGPT users have been facing this problem since the beginning that they do not get personalized results, in which many times they have to give prompt answers of their professional habits, due to which a lot of their time was wasted and they also did not get consistent results, but in GPT-5 OpenAi has solved this problem to a great extent, in which ChatGPT will have the memory of your previous chat, using which it will give you personalized results.

Practical Test: To test the style consistency of GPT-5, I gave similar and tricky prompts to GPT in new chats like. In the first chat, I generated landing page content for my digital marketing company, and in the second chat, I asked it for a trick and refreshment about the best places to visit in New York.

And in the third chat, I directly asked him how I could further enhance the content of my digital marketing company's previous landing page, and he gave me the exact results by using the memory of the first chat.

3. Human-Like Readability

The readability of all versions of GPT is quite good, and I have no doubt about this, but it is very important to know whether GPT-5 will have better Human-Like Readability capabilities than GPT-4 or not.

Practical Test: To test the readability of GPT-5, I chose one of my articles and used its title to generate content with GPT-5 and I was quite surprised that my human-written content gave almost 82% Human-Like Readability results.

How is GPT-5 Writing Different?

ChatGPT has the largest market share in this sector, and GPT-5 is becoming quite popular for its writing capabilities, and many experts say that this version can generate human-like content. Let’s understand in detail why the writing of GPT-5 is different from the previous models.

1. The Em-Dash Obsession

Generally, versions of GPT use a lot of em-dashes in writing, and I have personally noticed this in all AI content, but the frequency of using em-dashes is very low for human writers, and they mostly prefer commas instead of dash signs. And this Em-Dash works as a fingerprint of the AI content, which is used by popular tools like BypassAI.io detectors to easily find AI content.

But in GPT-5, these common AI writing practices are rarely seen, due to which it is a bit difficult to detect its content by AI detectors.

2. Readability Spread

I have noticed one feature of ChatGPT, that it never tries to make the content look natural while generating it, like professional writing tools do, but GPT-5 models have this capability that while writing it automatically tries to make the text sound natural, that too without any special prompt, basically the writing tone of human writers remains quite consistent and GPT-5 also tries to mimic the same in writing.

And when you use it in content writing and when you read its output, its generated content will feel quite human-written to you, that is why the readability rate of GPT-5 is quite high.

3. Better Adaptability

GPT-5 seemed better than GPT-4o, because it can remember our previous chats and tries to guide us in future chats accordingly, due to which you get better personalization results in GPT-5.

You will also get to see better prompt understanding in this new model, due to which it can easily understand your input and can also adapt itself according to it. And GPT-5 can also do its own work and behave according to the user.

GPT-5 vs. GPT-4 Detection Accuracy Comparison

GPT-5 is the latest model of OpenAI, so many users want to know the exact reality of its detection accuracy, so let's try to measure it on different parameters.

• Factual Accuracy: GPT-5 reduces 45% errors as compared to GPT-40 and the thinking mode of GPT-5 has 80% more capabilities for complex queries.

• Coding Performance: GPT-5 scores 74.9% on SWE-bench, while GPT-40's rate is 30.8% and GPT-5 is much better in coding-related tasks.

• Health-Related Accuracy: The HealthBench error rate of GPT-5 is 1.6% and its output is 15.8% better than GPT-40.

• Mathematical Proficiency: The error rate of GPT-4.1 was 46.4% on the AIME standard, and the error rate of GPT-5 is 94.6%, according to the latest testing.

• Multimodal Performance: The MMMU error rate of GPT-5 is 84.2% and in VideoMMMU it is 84.6% and GPT-5 has surpassed GPT-40 on the multimodal performance standard.

• Challenges: In GPT-4 we get weaker creative writing, less emotional depth and in some cases, it gives slower responses, and sometimes it even hallucinates, but GPT-5 tackles these issues quite effectively.

• Strategic Focus: GPT-5 prioritizes technical tasks for precision so that it can remain aligned with the research goals and deliver high-quality results.

GPT-4 vs GPT-5 accuracy comparison on different Parameters

Impact on Creative Writing & Content Industry

Many experts believe that AI and GPT will destroy many creative industries, because AI tools can do any creative work in seconds, and since the arrival of GPT-5, this theory seems to be true to a great extent. Let's understand in detail how GPT-5 will ultimately impact the Creative Writing & Content Industry.

1. Writers & Authors

As I used GPT-5, I felt that this model is like a gift and also a challenge for writers and novelists like me.

• It is like a gift because by using it, I can refine my writing further and generate more ideas, and it will also be easy for me to decide on a better structure for my content.

• GPT-5 is challenging for me because if my clients start generating content using GPT-5, I may incur a lot of losses.

GPT-5 is also not capable enough to replace human writers because this version also lacks experience and real situational emotions, but mostly businesses can skip human writers for cost-cutting, which will directly cause a lot of loss to freelance writers or novelists.

2. Students & Academics

GPT-5 can easily generate basic academic tasks like Essays, Assignments and if a better prompt is given then it can even generate research papers and many students can use GPT-5 for cheating, which will be an unethical practice due to which their creative growth will not happen and colleges or universities will not be able to judge the right students and those students who will not use AI will also be treated unfairly. That is why many universities have banned the use of ChatGPT.

3. Marketers & Agencies

The biggest impact of GPT-5 will be seen in the small or basic content industry, like generating marketing slogans or preparing product descriptions, it will be of great use there due to its speed and low cost.

Businesses will also prefer GPT-5 because its content will not impact them as much as the penalties a blog gets from Google. But such content can have a huge impact on trust.

4. Publishers & Platforms

Publishers and platforms may have to face a lot of AI content,

• As many content writers will try to write content using GPT-5, tackling this will be a very challenging task for publishers.

• Small bloggers will misuse GPT-5 for bulk blogging.

• Platforms like Medium and LinkedIn will have to face the issue of AI content, due to which they will have to create high content-filtration algorithms.

My Thought: GPT-5 is definitely a lot more advanced for content creation or writing than previous models, but it is not yet so advanced that it can replace human writers. And if any content is for humans, then the company should ensure that the content is written by human writers only, and GPT-5 should be used only to enhance its productivity.

Apart from this, publishing firms should set strict guidelines so that AI content can be avoided.

Can AI Detectors detect GPT-5 Content?

Many writers like me have this curiosity in their minds whether GPT-5 content can be detected by AI detectors or not. To know the reality of this, let’s test GPT-5 content with top AI detectors.

Test 1: First, we will generate content from ChatGPT-5

Test 2: Then, we will check this content in our Bypass AI detector tool

Result: BypassAi.io detector easily detected the content generated from ChatGPT-5. This shows us that GPT-5 content can be easily detected by top detectors.

Future of GPT Detection

As the GPT models are evolving, it is becoming increasingly difficult to detect their generated content through AI detection, because the algorithm and fingerprint of each version are different, but this does not mean that no AI detector can detect GPT content; the top detectors in the market will always be able to detect GPT content easily. AI detectors may face issues in detecting content of the new model, but they update their system according to the new model within 1-2 months, due to which it becomes easy to detect the content of the new model.

Important Note: The primary goal of GPT models is never to bypass AI detectors; rather, their primary goal is to perform complex tasks.

Conclusion

I have been using ChatGPT for the last 3 years, and one special thing about all the models is that they are marketed as advanced tasks, not as AI writing assistants or generators. And these same rules are seen in GPT-5 as well. No matter how smooth the prompt is, ChatGPT-5 can easily detect top AI detectors like Bypass AI detector, Copyleaks AI detector ChatGPT-generated content, as GPT models are never designed to bypass detectors.

The competition of AI detectors is not with GPT models, because raw AI content can mostly be detected by AI detectors, the main competition of detectors is with AI Humanizer tools, and as GPT models evolve, AI Humanizer and AI detectors will become more advanced. So if you need to generate undetectable content, you may prefer BypassAi.io Humanizer.

My Recommendation: GPT-5 is currently more of a partner and not a replacement for writers. So, Writers, Marketers, and Publishers should use the GPT-5 model to further enhance their productivity and work experience, not for cheating.

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