arijose

This plugin was created to stop human spammers. Captcha or other image methods do not work when an actual person is spamming your site. This plugin helps to resolve this issue. It allows your to create a custom question and answer on the registration page of a wordpress site that only the users in your demographic can answer. An example (and the reason I created this plugin) is a school track website. I would get up to 3 to 5 bogus registrations a day. I added this plugin with the question “What city is your school in?” and that number went to 0. Someone in another area is not going to know this question, however anyone who would/should be registering would defintely know the answer. This plugin will not work for everyone but it certainly was a perfect fit for me and I know it will help others too.

ARS Reg Secure

This plugin helps block bogus registrations by allowing a custom registration field and answer.

Rashed Hossain

Tired of traditional spam filters missing the mark or adding friction with CAPTCHAs? 
AI Spam Comment Detector uses OpenAI’s GPT-4 to intelligently analyze and flag spam comments before they get posted — and notifies users inline right on the comment form.
🧠 Smart Detection: Uses context-aware GPT-4 language model 
🚫 Auto-Block Spam: Flags or blocks comments before submission 
🔔 Inline Error Messaging: Warns users above the comment form 
🔐 Private & Secure: Only comment content is sent to OpenAI 
🔧 API Key Config: Add your own OpenAI API key from plugin settings
No more CAPTCHAs. No more bots. Just intelligent spam protection.
<h3>Features</h3>
<ul>
<li>Detects spam comments in real time using GPT-4</li>
<li>Automatically marks spam before submission</li>
<li>Warns users with inline messages on the comment form</li>
<li>Admin settings page to set the OpenAI API key</li>
<li>Handles invalid API key or quota exceeded errors</li>
<li>WordPress-standard and lightweight</li>
</ul>
<h3>External Services</h3>
This plugin connects to OpenAI’s GPT-4 API to analyze and detect spam in WordPress comment submissions.
<ul>
<li>Service Name: OpenAI (https://openai.com/)</li>
<li>What it is used for: Analyzing comment content using the GPT-4 model to determine whether the comment is spam.</li>
<li>What data is sent and when: The content of each comment is sent to the API at the time of submission, for real-time analysis.</li>
<li>Terms of Service: https://openai.com/terms</li>
<li>Privacy Policy: https://openai.com/privacy</li>
</ul>
This connection is required for the plugin’s core spam detection functionality.
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

AI Spam Comment Detector

AI-powered comment spam detection using GPT-4. Blocks spam comments with inline user warnings—no CAPTCHA needed.

ARS Reg Secure vs AI Spam Comment Detector