Filter AI for WordPress

Filter AI brings the power of AI to WordPress, streamlining content creation and enhancing your editorial workflow.

Developed by Filter for real-world clients, this plugin makes it easy to generate SEO Meta Titles and descriptions, ALT text, post titles, excerpts, product descriptions and rewrite content directly inside your WordPress Admin.

Web interface displaying text editing options: rewrite, expand, condense, summarize, and change tone. A cursor hovers over "Rewrite." The header reads, "Easily generate, rewrite and change tone."

Key Features


Powerful features for editors and site managers publishing regularly, SEO and content optimisation teams and WordPress users who want to speed up content creation

Settings interface for a Filter AI plugin showing options for "Brand Voice" and "Stop words" under the Global category, with toggle switches. A cursor points to the Brand Voice option.

Brand Voice

Define your own Brand Voice at a global level to ensure that AI provides meets your brand guidelines

SEO tool interface displaying options for generating post titles with a progress screen titled "Generating Title."

Yoast SEO Metadata

Generate SEO Titles and META Descriptions when using Yoast SEO with both single post and batch generation options

A screenshot of a webpage showing an image upload interface. A "Generate Alt Text" button is highlighted, indicating a feature to create alternative text for accessibility. The screen displays image details like upload date, file size, and dimensions.

ALT Text Generation

Automatically add AI-generated ALT text to your image on upload to improve accessibility and SEO

A screenshot of a webpage editor displaying a landing page titled "Welcome to Elm & Bay." A cursor hovers over an option to generate a title or excerpt, indicating interactive action.

Post Titles

Stuck for a title? Filter AI can help you craft compelling post titles that improve click-through rates

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Product Descriptions

Use AI to craft your WooCommerce product description information to save you time and improve your search profile

Text editing interface showing a sample landing page with toolbar options like headings, formatting, and bullet points. A dropdown menu with options such as Rewrite, Expand, Condense, Summarise, and Change Tone is visible, indicating text modification features. The background is light blue.

Content and Tone

Transform your content tone of voice with a single click – then ask AI to expand and summarise your text as needed

A computer screen displays a webpage about Nutrience Dog Food with images of a dog, dog food, and a menu option showing "Generate Excerpt."

Excerpts and Tags

Allow AI to summarise the content of your post into an excerpt, and then suggest relevant post tags

AI plugin settings interface with toggle switches for brand voice, stop words, and image features. A magnifying glass highlights a "Stop words" input field where a cursor points, indicating user interaction.

Stop Words

Set stop words up at a global level to ensure that AI responses don’t include specific words or phrases

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Choice of AI Platform

Bring your own API key to AI Services and choose Gemini, Open AI or Anthropic to generate your content

Get Started Straight Away

Download and activate the plugin, add your preferred service API key and the rest is done for you – no complex setup or configuration, just plug and play.

Settings page for "Filter AI Plugin" showing customization options. Toggles for generating image alt text, post titles, excerpts, tags, and text rewriting are visible, all switched on. Sections are divided into "Images," "Post," and "Customize Text," each with brief descriptions of their functions.

Fully Customisable

Filter AI lets you customise the AI prompts for each generation tool individually.

Need your content to follow specific brand guidelines or your unique tone of voice? Set your global brand voice and stop words.

And if you need granular control, adjust the prompts on the Settings screen to match your requirements for each individual feature.

Built on AI Services

Filter AI is built on the foundation of Felix Arntz’s excellent AI Services plugin, which continues to add new AI providers and features.

Bring your own API key from any supported platform such as OpenAI, Anthropic or Gemini (with more coming soon).

AI Services is a required dependency for Filter AI, so make sure you have installed this first.

A webpage screenshot of a plugin called "AI Services" by Felix Arntz. The page includes a blue header with a robot icon, plugin details, a description about its capabilities, and a sidebar showing community plugin information such as version and active installations.
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Support and Roadmap

Filter AI is provided as an open-source product by Filter, free of charge. If you have any problems in setup, feel free to reach out to our team.

We’re interested in hearing what features you think we should implement next – let us know.

PersonalizeWP

We also develop PersonalizeWP, which the leading personalisation plugin for the WordPress Block Editor, and which allows you to show the right content to the right audience at the right time.

  • Multiple Display Conditions
  • Geo-Location and Targeting
  • Visitor Journey tracking
  • User Segmentation and Lead Scoring
  • Increase WooCommmerce conversions
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Frequently asked questions

Filter AI is a free WordPress plugin that integrates AI-powered content creation tools directly into your WordPress block editor. Built on the foundation of the AI Services plugin, it allows you to generate compelling content, rewrite text, create ALT text for images, and perform other content tasks using leading AI platforms like OpenAI, Anthropic, and Gemini – all without leaving your WordPress dashboard.
Yes, the Filter AI plugin itself is completely free to download and use. However, you’ll need to provide your own API key from one of the supported AI services (OpenAI, Anthropic, or Gemini). You only pay for the actual AI usage according to your chosen provider’s pricing model, giving you complete control over costs and spending limits.
Not at all! Filter AI is designed for content creators, not developers. The intuitive interface integrates seamlessly with the WordPress block editor you already know. Simply install the plugin, add your API key in the settings, and start using AI tools right where you create content.
Filter AI works with any AI service supported by the AI Services plugin, including:
  • OpenAI (GPT models)
  • Anthropic
  • (Claude models)
  • Google Gemini
  • Additional providers as they’re added to AI Services

This flexibility means you can choose the AI provider that best fits your needs and budget.
Absolutely! One of Filter AI’s key features is the ability to customize AI prompts for each generation tool. Whether you need ALT text that follows specific accessibility guidelines, content that matches your unique tone of voice, or descriptions that align with your brand guidelines, you can adjust the prompts to meet your exact requirements.
Since you bring your own API key, you can set spending limits and budgets directly with your AI service provider. Filter AI is designed to use tokens efficiently, and you can adjust the length and complexity of generated content to manage costs. You have complete transparency and control over your AI spending.
Filter AI offers a comprehensive suite of content creation tools:
  • SEO Meta Titles and Descriptions
  • Generate compelling ALT text for images
  • Create engaging titles and headings
  • Write introductions and conclusions
  • Create WooCommerce product descriptions
  • Rewrite and improve existing content
  • Summarize long-form content
  • Generate content ideas and inspiration
Filter AI requires:
  • WordPress 6.0 or higher
  • PHP 7.4 or higher
  • The AI Services plugin
  • An API key from a supported AI service provider

The plugin has been tested up to WordPress 6.5 and follows WordPress development best practices.

Get in Touch

Want to learn more about how Filter can help you with your next project? Contact our team today.

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News

The image shows a software interface for generating SEO titles, featuring options for title selection and a progress screen titled "Generating Title."
AI

Introducing Filter AI Version 1.2: Smarter SEO, ALT Text and Brand Control

This update brings smarter automation, better SEO tools and more control over your content, discover everything new in Filter AI version 1.2.

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WordCamp Europe 2025 Talk Highlights: Smarter Content and Better Communication

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An interface screen displays options for rewriting, expanding, condensing, summarizing, and changing the tone of text. The highlighted section shows "rewrite." A hand cursor hovers over the drop-down menu. The background is a gradient of light green to blue.

Introducing Filter AI: Our Free WordPress Plugin for AI-Powered Content Creation

Say hello to Filter AI – our powerful (and free!) WordPress plugin that puts the full potential of AI content creation right at your fingertips.