9 Best AI Content Optimization Tools in 2025 [Tested and Reviewed]

AI content optimization tools help analyze, improve, and streamline content by inspecting elements like structure, readability, and relevancy. They improve your SEO efforts as a business, especially if you want to create high-quality content or optimize it to rank better on search engines. 

There are strong cases for implementing AI in optimizing different types of content. In fact, a 2024 SurveyMonkey study shows that 51% of marketers have adopted AI to optimize and streamline their content production.^[1] Furthermore, as of 2024, 65% of businesses have reported improved results in their SEO thanks to AI.^[2]

These functionalities (and statistics) show that AI content optimization tools are important for content strategy and marketing. If used correctly, they can bring benefits such as:

• Increased engagement
• Improved search engine rankings
• Enhanced content quality
• Improved productivity
• Better idea generation
• Helps scale content production

That’s why, in this post, I’ll list 9 best AI content optimization tools that will help you to create content briefs, generate content, discover and target relevant keywords, write in semantic style with NLP, and much more.

Caution ⚠️: As AI hallucinates, AI-generated content and suggestions need double-checking. It makes it necessary for human intervention.

• 1. Frase.io – Best for Content Briefs with NLP Entities
• 2. SurferSEO – Best to Write & Optimize in Any Language
• 3. Clearscope – Offer Keyword Discovery with Content Inventory Pages
• 4. NeuronWriter – NLP-powered Content Optimization with Semantic Style Writing
• 5. Ahrefs Content Helper – Offer Search Intent with Competitor Analysis
• 6. MarketMuse – Best for Content Strategy and Competitive Edge
• 7. SEO.ai – Best AI-Optimized Content Optimization Software for Stores
• 8. Semrush – All-in-One SEO Tool with Content Optimization
• 9. Conductor – AI-powered Intelligent Software for Content Guidance
• Show moreShow less

Best AI Content Optimization Tools Comparison

If you’re short on time, you can take a look at the table below. I’ve compared the best AI content optimization tools in this list based on their key features, integrations, AI capabilities, pricing, and free trial offerings.

1. Frase.io

Frase.io is a popular AI content optimization tool that is best suited for creating content briefs.

The SEO team at Geekflare extensively uses Frase.io to create highly detailed content briefs with NLP entities. This gives writers like me the best way to write and optimize content for readability, SEO, and reader’s intent.

In my Frase review, I rated it 4.5 out of 5, rewarding it with the “Geekflare Innovation Award”. During my testing, I found it to be user-friendly with drag-and-drop functionality when creating content briefs.

Our team has created and worked on more than 200+ Frase documents over the last year.

Additionally, I like that it offers content scoring, custom templates, AI content generation, and extensive SEO research by learning from competitors.

To make it easy to include what people are searching for, Frase provides access to people’s voices by linking related content from Reddit, Quora, and Questions related to the search query.

I recommend Frase for content teams that want to write or optimize a piece of content with a primary focus on content outline creation.

Frase.io Features

• Automate research process with better audience understanding
• Create AI-generated content briefs with an outline builder
• Content optimization for better SEO rankings
• Frase Answer Engine optimization that answers user’s queries
• Content analytics for rank tracking and content decay

Pricing

Frase.io pricing starts at $45/month. Here, one user can create up to 30 documents with unlimited AI words.

Frase’s Free trial lets you try the product with 1 SEO document and 2500 AI words.

Try Frase.io

2. SurferSEO

SurferSEO is one of the best AI content optimization tools in the market. It simplifies AI content generation, optimization, and auditing, helping SEO teams and content writers write ready-to-rank articles. It supports 8 languages, including English, Dutch, Dansk, and others.

I have personal experience using SurferSEO. The SurferSEO draft offers proper guidelines with content score (real-time) and parameters to follow, such as:

• Words: Range of words to write
• Headings: Number of headings to include
• Paragraph: Number of paragraphs to create
• Images: Number of images to include

Furthermore, you get the Topics tab, which offers topic modelling. This helps identify content gaps and crucial content that can be covered.

Like Frase, you can also auto-generate outlines using AI or use its handy auto-optimize feature to instantly boost topical coverage and content score.

So, if your business needs AI-powered tools that not only help in the content creation process but also write and optimize content, SurferSEO is a great pick. 

SurferSEO Features

• Content Detector helps identify AI-generated content
• AI Content Humanizer transforms AI content into human-like writing
• Supports multiple contributors for the same page
• Generate ready-to-rank articles in minutes via Surfy AI writing tools assistant
• Offers topical maps for fruitful research and finding the next content idea

SurferSEO pricing

SurferSEO plans start at $79/month (up to 5 teammates support). It lets you write & optimize 30 articles/month. Additionally, you can generate 60 rank-ready AI articles and track 200 pages.

They offer a 7-day money-back guarantee on their plans.

Try SurferSEO

3. Clearscope

Clearscope is an AI-powered SEO optimization tool that is best for keyword discovery. It uses AI to help you create SEO-friendly content that matches the reader’s intent, making them more shareable.

Its keyword research tool relies on Google Keyword Planner. On the other hand, it uses IBM Watson, Google Cloud, and OpenAI technology to write and polish content under the hood.

In my Clearscope review, I gave it a solid 4 out of 5 with the “Geekflare Innovation Award” for its ability to grade, optimize, and track content.

Out of all its features, I rate its Content Inventory Management feature highly. It lets you track your existing content via visualization. The tracked content can then be set to find the best opportunities, technical issues, internal linking, and much more. It offers excellent possibilities for teams to improve their SEO journey.

Overall, Clearscope is a great pick for content optimization, eCommerce product descriptions, agency content workflows, and freelance writing projects—but at a higher price point.

Clearscope Features

• AI-powered content reports and optimization
• Discover keywords via the Keyword Research tool
• Real-time content grade to help optimize content on the go
• Create AI outlines to kickstart the content creation process
• Understand competitors with term map and competitor mapping

Clearscope Pricing

Clearscope plans start at $189/month, making them more expensive than competitor products. It lets you create only 20 monthly content reports with 50 monthly keyword discovery and 100 content inventory pages.

Unlike Frase and SurferSEO, Clearscope doesn’t offer any money-back guarantee or free trial.

Try Clearscope

4. NeuronWriter

NeuronWriter is an excellent AI optimization tool that offers SERP analysis, AI content creation, and NLP-powered optimization.

I like NueronWriter as it’s heavily inspired by SurferSEO and Frase, which cover the whole process of building topical authority. It aids in generating content ideas, planning, management, and even publishing via extensions such as WordPress AI integration, Chrome extension, and export.

Like Frase and SurferSEO, you need to input the keyword, target search engine, and language. Once done, it’ll ask you to select 10 competitors, which it’ll use to create guidelines. I like this feature, considering it gives you freedom on which links to include.

It’ll then redirect you to the content editor, which is well-designed and offers ease of use. It is inspired by SurferSEO, offering NLP keywords and other features such as Outline creation, Heading, AI-writing, etc., on the right side of the editor.

The outline creation process is fast, thanks to Smart headings and the ability to add headings by single-clicking suggestions. Or you can copy-paste headings from a particular page by using the copy button. It also offers an AI-outline feature to automate outline creation.

Under the hood, you can choose between GPT models (GPT-4o-mini, GPT-4o) and Claude Sonet 3.5 to generate the outline or create content.

Overall, I find Neurowriter a worthy AI content optimization tool that offers value for money with an extensive feature set. It generates decent outlines and guides you to write content with higher ranking chances.

NeuronWriter Features

• Offers content plans for better topical authority management
• Real-time content score to guide you in writing content that ranks
• Generates complete AI articles in a few clicks with high readability
• Suggests NLP terms for a better chance to rank higher in Google
• Content management for precise tracking of tasks

NeuronWriter Pricing

Neuronwriting plans start at $19.12/month with 25 content writer analyses, 2 projects, and 15000 AI credits.

They offer a 60-day money-back guarantee and a free trial.

Try NeuronWriter

5. Ahrefs Content Helper

Ahrefs Content Helper takes a different approach to AI content optimization. It focuses on relevant topics rather than keywords, ensuring better search intent and content coverage. However, this makes the tool rely heavily on competitors. 

I created a new document under AI Content Helper to test it out. 

Like other AI Content optimization tools, you will need to enter a target keyword and select a search engine location based on your target audience.

As it is intent-driven, Ahrefs Content Helper will show the recommendations on the search intent. You can opt for any of them and proceed. If you don’t like this approach, you can turn off the “Group by search intent” option.

Once selected, the tool will redirect you to the content editor, where you will get detailed information about the audience’s questions and content scores. You can optimize Title Tags, Meta Descriptions, and Headings via a similar approach.

I found Ahrefs’s approach to content optimization unique. It solves the biggest problem in the current SEO landscape, i.e., writing based on search intent. This approach is aided by useful competitor data, ensuring comprehensive content coverage.

At the time of writing, the Ahrefs Content Helper is in the beta stage and available for free on all Ahrefs paid plans. According to Ahrefs, new features, such as word-to-word recommendations, automated internal linking, etc., will be added to the tool soon.

I highly recommend Ahrefs Content Helper, especially for businesses already subscribed to Ahrefs. For those without Ahrefs’s subscription, I would suggest choosing Frase or SurferSEO, as the Ahrefs pricing plans are higher than most AI content optimization tools. 

However, there is no limit to the number of documents you can create with Ahrefs Content Helper during its beta period. So, if you’re working with many documents, you can go for the tool.

Ahrefs Content Helper Features

• Guides writers on topic coverage with real-time content score
• Identifies topic intent from keywords and generates useful guidelines
• Provides proper competitor analysis with metrics coverage (domain rating, word count)
• Supports 173 languages, including English
• Easy to use content editor with great feature set

Ahrefs Content Helper Pricing

Ahrefs Content Helper is accessible via Ahrefs plans starting at $108/month. As it is in beta, it offers unlimited usage.

Try Ahrefs Content Helper

6. MarketMuse

MarketMuse is a perfect tool for building topical authority as it offers easy identification of high-value topic clusters using AI. This way, content marketing teams can know which topics to pursue while knowing their difficulty and value.

I found the MarketMuse approach to content optimization easier, as it offers different workflows for various needs:

• Optimize: Help optimize existing articles/drafts using the MarketMuse topic model
• Analyze Competitors: Learn from competitors via the Heatmap solution
• X-ray SERP: Offers SERP analysis
• Assess Clusters: Do a cluster-specific analysis on a particular topic
• Research Topics: Build a MarketMuse topic model to build authority around a topic
• Discover Links: Discover internal and external links via MarketMuse’s Connect Solution

To organize the features, it offers Research and Optimize applications. The Research application gives access to Topic Navigator, SERP X-RAY, Heatmap, and Connect features. The Optimize app allows you to write from scratch based on the tool’s recommendation or optimize already written or published work.

I liked its color-coded way of showing keyword mentions and occurrences; it’s useful in identifying what needs to be included.

Overall, I found MarketMuse a competent AI content optimization tool. It differentiates itself from competitors by providing seamless workflow options and providing tools to create viable content and SEO strategy.

MarketMuse Features

• Automatically identifies clusters and provides a personalized roadmap
• Excellent documentation capabilities with detailed analysis
• Track content performance of all published topics/pages from the Inventory with valuable data
• Identify gaps using competitor data from the Heatmap feature
• Automated content brief generator removing the guesswork

MarketMuse Pricing

MarketMuse pricing starts at $99/month, where you can create 5 content briefs/month, track 100 topics, and make 1 strategy docs per month.

It offers a free trial with limited functionality.

Try MarketMuse

7. SEO.ai

SEO.ai is primarily focused on providing high-quality, SEO-friendly content and optimization for online stores. It lets eCommerce businesses create product and collection descriptions and even write blog posts from scratch.

To test the SEO.ai platform, I signed up for their 7-day free trial (credit card required).

As I like collecting die-casts from different brands, such as MiniGT, I created a product collection description.

Based on my input, SEO.ai did a great job creating a detailed yet convincing description. It reads well and captures the essence of the product it intends to sell.

However, human editing is required before it can be published.

What makes SEO.ai unique is the ability to train the AI for brand voice. So, I went forward and created a brand voice that matches die-cast lovers—and then re-created the Die Cast Collection product description. It did a decent job creating something similar to the brand voice I described.

These features make SEO.ai an excellent pick for marketers, content creators, businesses, and eCommerce stores looking for content products with AI. It helps them save time by removing repetitive tasks while creating content at scale.

SEO.ai Features

• Offers one-click drafts to speed up the content creation process
• Prompt library that lets you modify and generate content such as Quote, Table, FAQ, etc.
• Create a compelling brand voice and train AI to use it
• Comes with an integrated chat assistant to make content changes directly from the draft
• Offers templates with custom flows and prompts

SEO.ai Pricing

SEO.ai pricing starts at $49/month, where you can create 10 blog posts, 25 AI SEO editor documents, unlimited AI chat/writing, and 500 internal linking URLs.

They offer a 7-day free trial for their plans (credit card required).

Try SEO.ai

8. Semrush

Semrush is a well-known SEO tool that recently started offering content optimization tools. This makes Semrush an all-in-one SEO tool for all your needs.

Like SEO.ai, I subscribed to their 1-week free trial (requires a credit card). 

Semrush’s SEO-AI tools include 

• SEO Content Template: Automate SEO-optimized content briefs that list tips from the top 10 competitor ranking articles
• SEO Writing Assistant: Optimize copy for SEO and engagement (available via add-on on WordPress, Google Docs, and MS Word)
• ContentShake AI: Curate unlimited SEO-friendly articles focusing on improving the site’s traffic. Furthermore, you can use it to get AI images or weekly content ideas and post directly to your WordPress site

The SEO template is handy for creating SEO content briefs. It provides advanced SEO and on-page optimizations such as Page title, Meta description, and H1.

For real-time content check, you need to use an SEO writing assistant. It validates your content based on four parameters: readability, SEO, Originality, and Tone of Voice. Additionally, the SEO writing assistant contains Smart Writer, which lets you compose, rephrase, and Ask AI.

However, ContentShakeAI is not included in paid plans. You’ll have to buy it separately by contacting their sales team. 

Out of these 3 primary features, ContentShake AI offers a complete package to write SEO-ready articles. It uses AI and data from competitors to create engaging content. Its ability to suggest and write personalized topics based on SEO, readability, and tone of voice makes it worth your while.

Semrush AI-Content Optimization Tool Features

• Get proper recommendations on how to improve content quality
• Get weekly new content ideas
• Fast content generation via ContentShake AI 
• Supports unique copy and style via customizable brand voice
• Publish/share directly to WordPress from the editor

Semrush Pricing

Semrush plans start at $117.33. It gives you access to a complete SEO solution. However, ContentShake AI is omitted, and you’ll need to contact their sales team for a quote.

Try Semrush

9. Conductor

Conductor enables companies to use its AI-powered tool for content guidance. It helps in the complete content creation process, starting from SEO, writing content, optimization, and even monitoring. It is a great tool to create social media posts.

The SEO team can research a given topic, page, or domain through Conductor’s research tool. It provides a detailed report containing monthly search interest, daily social mentions, search volume, and questions. Furthermore, it’ll give you the option to create and optimize content, known as “Guidance”.

The content guidance offers more suggestions related to the keyword. These suggestions can be used to create new content or optimize an existing one to rank them well in search engines.

To test Content Guidance, I used the “AI Tool” keyword. It did a good job showcasing key insight on which keywords to target, the traffic, competition, headings, and so on.

Next is the Writing Assistant, which helps you write content. It lists the objective, audience, journey stage, content type, and body content suggestions on NLP terms. It also recommends length and provides a readability score.

However, I didn’t like its suggestion tab on the left. Most information is hidden and requires scrolling, which can be improved by creating tabs at the top (similar to how SurferSEO and Frase do).

This makes me recommend Conductor to new businesses with less content width and requirements.

Conductor Features

• Offers a workspace (Custom View) to manage different needs, such as content opportunities, SEO business reviews, etc. 
• Monitors website 24/7 to proactively take actions or alert if new opportunities arrive
• Optimize content with AI with proper recommendations
• Improve business workflow with proper tools for different tasks
• Comes with multiple integration options, including Asana, Adobe, Jira, etc.

Conductor Pricing

Conductor offers custom pricing based on the scale of your requirements, so you’ll have to contact their sales department for more information.

They offer a 3-week free trial with no credit card requirement.

Try Conductor

What is AI Content Optimization?

AI content optimization is optimizing content by using artificial intelligence (AI). The aim is to make relevant content, and ensure that existing content is more readable, SEO-friendly, and intent-based. 

Many popular AI content optimization tools exist in the market, including Frase and SurferSEO. These tools rely on existing data to make recommendations. 

For example, tools like Frase and SurferSEO crawl the top 30 search results and give you necessary recommendations. This can also include finding content gaps, listing NLP-based target keywords, or intent-based searches.

The tools also include AI content generation, image generation, identifying clusters, and outline creation. 

You can also use these platforms for outline creation, content management, and much more.

Best Practices for Using AI Content Optimization Tools

As AI content optimization tools rely on artificial intelligence, it is a must to follow the best practices mentioned below:

• AI as Your Assistant, Not Your Replacement: AI content optimization tools are a great way to speed up work. However, it should not replace you or your work. Every organization must create an AI policy on using AI in their workflow while maintaining data privacy, confidentiality, and originality.
• Focus on Quality Over Quantity: AI tools are capable of completing tasks such as blog post creation, optimizations, etc., in a matter of seconds. However, this must not lead you to focus on quantity rather than quality. AI outputs require careful consideration before they can be used in real-world settings.
• Ethical Considerations: With AI and machine learning come ethical considerations. Undoubtedly, AI can impact the current workforce by improving their productivity, but it must be embedded to ensure people’s jobs. Businesses must also consider Digital Amplification, Algorithmic Bias, Cybersecurity challenges, Privacy, and Inclusivity.
• Maximize Tool Features: Each AI content optimization tool is different in its capacity and features. That’s why it is vital to understand what the tool offers to maximize its usage. 
• Involve Humans to Revolve Output: Artificial intelligence models are known to hallucinate. That’s why human intervention is required to check the output and correct any mistakes.

References

Click to Expand

1. 1. Marketing trends for a new era 2024 – SurveyMonkey
2. 2. New Report Reveals the Top AI Content and SEO Trends for 2024 – Semrush