Frase vs Semrush AI: Which SEO Tool Writes Better Content? (2026)

Quick Verdict: Frase vs Semrush AI

If your primary job is writing SEO-optimized content and you want to do it affordably, Frase wins. Its content briefs, SERP analysis, and integrated AI writer are purpose-built for content creators. But if you need keyword research, site audits, backlink tracking, competitor analysis, and AI writing under one roof, Semrush is the better investment — especially for agencies and businesses managing multiple sites.

Neither tool is a bad choice. They just solve different problems at very different price points.

What Is Frase?

Frase is an AI content optimization platform designed specifically for writers and content marketers who want to create search-optimized articles faster. Launched in 2020, it has steadily carved out a reputation as one of the best tools for generating content briefs, analyzing SERPs, and writing first drafts with AI assistance.

The core workflow is straightforward: enter a target keyword, Frase analyzes the top-ranking pages, generates a detailed content brief with headings, questions, and statistics, and then lets you write (or have AI write) an optimized article right in the editor. The content score updates in real time so you can see how your article compares to competitors.

Frase Key Features

• AI Content Briefs: Automatically pulls headings, questions, statistics, and key topics from top SERP results to create comprehensive content outlines.
• SERP Analyzer: Breaks down the top 20 search results for any keyword — word count, headings, topics covered, and domain authority.
• AI Writer: Built-in AI writing assistant that generates paragraphs, sections, or full articles based on your brief and outline.
• Content Optimization Score: Real-time scoring that shows how well your content covers the topics that top-ranking pages address.
• Answer Engine: Identifies the questions people ask about your topic and suggests answers to include.
• Google Search Console Integration: Pull existing content performance data to identify optimization opportunities.

Frase Pricing (2026)

Plan	Price	Documents	Key Features
Solo	$15/month	4/month	AI writer, content briefs, SERP analysis
Basic	$45/month	30/month	Everything in Solo + more documents
Team	$115/month	Unlimited	3 users, unlimited documents, Google Docs integration

Pro AI Add-on: For $35/month extra, you get unlimited AI-generated words — without it, AI output is capped. Most serious users will want this.

What Is Semrush AI?

Semrush barely needs an introduction. It's one of the most established SEO platforms in the world, used by over 10 million marketers. In recent years, Semrush has aggressively integrated AI into its suite, most notably through ContentShake AI — a dedicated tool that generates full SEO articles from a keyword input.

But Semrush's AI capabilities don't stop at writing. The platform uses machine learning across keyword research, site audits, competitive analysis, and content gap identification. When you buy Semrush, you're not just buying an AI writer — you're buying an entire SEO ecosystem.

Semrush Key Features

• ContentShake AI: Generates SEO-optimized articles with competitive analysis baked in. Suggests topics, writes drafts, and scores content readability and SEO performance.
• SEO Writing Assistant: Browser extension and Google Docs plugin that gives real-time SEO recommendations as you write.
• Keyword Magic Tool: One of the most powerful keyword research tools available — millions of keyword suggestions with volume, difficulty, CPC, and intent data.
• Site Audit: Crawls your site and identifies technical SEO issues: broken links, slow pages, duplicate content, missing meta tags.
• Backlink Analytics: Tracks your backlink profile and spy on competitors' link-building strategies.
• Position Tracking: Daily rank tracking for your target keywords across different devices and locations.
• Competitor Analysis: See exactly what keywords your competitors rank for, what content drives their traffic, and where the gaps are.

Semrush Pricing (2026)

Plan	Price	Projects	Key Features
Pro	$139.95/month	5	Full SEO toolkit, ContentShake AI, 500 keywords to track
Guru	$249.95/month	15	Content Marketing Toolkit, historical data, 1,500 keywords
Business	$499.95/month	40	API access, share of voice, 5,000 keywords

Note: ContentShake AI is included in all plans but has usage limits. Additional AI credits can be purchased separately.

Head-to-Head: Content Writing Quality

This is where it gets interesting. Both tools can produce a first draft from a keyword, but they approach the problem differently.

Frase's Approach

Frase builds content from the brief up. It first analyzes what's already ranking, extracts the topics and questions being covered, and then creates a structured outline. When the AI writes, it's working within this research-backed framework. The result tends to be more topically comprehensive because every section is informed by actual SERP data.

Frase's AI writer produces clean, readable prose. It's not going to win literary awards, but it reliably creates well-structured paragraphs that cover the key points. The real value is the content score — as you write or edit, you can see which topics you're missing and which ones you've covered.

Semrush's Approach

ContentShake AI takes a more end-to-end approach. You input a topic or keyword, and it generates a complete article in one shot — title, headings, body text, and even image suggestions. It also assigns a readability score and an SEO score, with suggestions for improvement.

The writing quality from ContentShake AI is solid — sometimes slightly more polished than Frase's output, thanks to Semrush's investment in their AI models. However, the briefs and outlines aren't as detailed as Frase's. You get a finished article quickly, but with less transparency into why the AI chose specific topics or headings.

Our Take

For content brief quality: Frase wins clearly. Its SERP analysis and brief generation are best-in-class.

For raw AI writing quality: They're close, with Semrush having a slight edge in tone and readability.

For the writing workflow: Frase is better for writers who want to control the process. Semrush is better for people who want a fast first draft they can refine.

Feature Comparison Table: Frase vs Semrush vs Surfer SEO vs NeuronWriter

To put things in perspective, here's how Frase and Semrush stack up against two other popular SEO content tools.

Feature	Frase	Semrush AI	Surfer SEO	NeuronWriter
Starting Price	$15/month	$139.95/month	$99/month	$23/month
AI Content Writer	✅ Built-in	✅ ContentShake AI	✅ Surfer AI	✅ Built-in
Content Briefs	⭐ Excellent	✅ Good	✅ Good	✅ Good
SERP Analysis	⭐ Deep analysis	✅ Included	✅ Included	✅ Basic
Content Score	✅ Real-time	✅ Real-time	⭐ Advanced	✅ Real-time
Keyword Research	❌ Limited	⭐ Industry-leading	✅ Basic	✅ Basic
Site Audit	❌ No	⭐ Comprehensive	✅ Basic (Audit)	❌ No
Backlink Analysis	❌ No	⭐ Comprehensive	❌ No	❌ No
Competitor Analysis	✅ Content-level	⭐ Full SEO	✅ Content-level	✅ Content-level
Rank Tracking	❌ No	⭐ Daily tracking	❌ No	❌ No
Google Docs Integration	✅ Team plan	✅ SEO Writing Assistant	✅ Available	❌ No
WordPress Integration	✅ Yes	✅ Yes	✅ Yes	✅ Yes
Best For	Content writers	Agencies & businesses	Content optimization	Budget-conscious users

Interested in Surfer SEO or NeuronWriter? Read our full Surfer SEO vs NeuronWriter 2026 comparison.

Frase: Pros and Cons

Pros

• Exceptional content briefs: The best in the business. Frase pulls headings, questions, statistics, and topics from top-ranking pages into a usable outline faster than any competitor.
• Extremely affordable: At $15/month for the Solo plan, it's accessible to freelancers and solo bloggers who can't justify $140+/month for Semrush.
• Laser-focused on content: No feature bloat. Every tool in Frase is designed to help you write better SEO content.
• Real-time content scoring: You always know exactly where your content stands compared to top-ranking pages.
• Google Search Console integration: Identify underperforming pages and optimize existing content — a workflow many competitors ignore.
• Clean, intuitive interface: Minimal learning curve. You can go from keyword to first draft in under 15 minutes.

Cons

• AI word limits on lower plans: Without the $35/month Pro AI add-on, AI generation is capped — which makes the effective cost $50/month for serious usage.
• No keyword research: You need to bring your own keywords. Frase doesn't have a keyword explorer or difficulty scoring tool.
• No technical SEO features: No site audit, no backlink analysis, no rank tracking. You'll need separate tools for those.
• Limited document count on Solo: Only 4 documents per month on the cheapest plan is restrictive for active content producers.
• Smaller company: Frase doesn't have the same R&D budget as Semrush, so feature updates can be slower.

Semrush AI: Pros and Cons

Pros

• All-in-one SEO platform: Keyword research, site audits, backlink analysis, rank tracking, competitor research, AND AI writing — all under one subscription.
• Keyword Magic Tool: Arguably the best keyword research tool available. Millions of suggestions with granular filtering by volume, difficulty, intent, and CPC.
• ContentShake AI is genuinely useful: It produces publish-ready drafts that are already optimized for target keywords. Great for scaling content production.
• Competitor intelligence: See exactly what your competitors rank for, what content drives their traffic, and where you can outperform them.
• Trusted data: Semrush's database is one of the largest in the industry — over 26 billion keywords across 142 countries.
• Massive integration ecosystem: Google Analytics, Search Console, WordPress, Trello, and dozens more.

Cons

• Expensive: $139.95/month is a significant investment, especially for solo creators or small businesses. And that's just the Pro plan.
• Content briefs aren't as strong: Compared to Frase, Semrush's content brief generation is less detailed and less research-driven.
• Feature overload: If you only need AI writing, 80% of Semrush's features go unused. You're paying for tools you might never touch.
• AI content limits: ContentShake AI has generation limits. Heavy users may hit caps, especially on the Pro plan.
• Steep learning curve: Semrush is a powerful platform, but it takes time to learn. New users can feel overwhelmed by the sheer number of tools and reports.
• Single user on Pro: Adding additional users costs extra. Team access gets pricey quickly.

Content Workflow: A Practical Comparison

Let's walk through a real-world scenario: you want to write an article targeting "best project management tools for remote teams."

Using Frase

1. Enter your keyword. Frase instantly analyzes the top 20 SERP results.
2. Review the content brief. You get a breakdown of headings used by competitors, questions from People Also Ask, key statistics, and topic clusters.
3. Build your outline. Drag and drop headings from the brief into your document. Add your own structure.
4. Write with AI assistance. Use the AI writer to generate section-by-section content, or write manually while watching the content score.
5. Optimize. The content score highlights missing topics. Add them until you match or exceed competitor coverage.
6. Export. Copy to WordPress, Google Docs, or download as HTML.

Time to first draft: ~20-30 minutes

Using Semrush

1. Research keywords first. Use Keyword Magic Tool to validate your target keyword, check difficulty, and find related terms.
2. Open ContentShake AI. Enter your topic and let it generate a complete article.
3. Review and customize. The generated article includes headings, body text, and an SEO score. Edit the tone, add your expertise, and restructure as needed.
4. Check with SEO Writing Assistant. Paste into the Writing Assistant for additional readability and SEO scoring.
5. Publish. Post directly to WordPress via the integration or export.

Time to first draft: ~15-25 minutes (but add 10-15 minutes for keyword research if you haven't done it beforehand)

Who Should Use Frase?

Frase is the right choice if you fit one or more of these profiles:

• Solo bloggers and freelance writers who write SEO content regularly and need affordable optimization tools.
• Content marketers who already have keyword lists from other tools (like a free Google Keyword Planner) and just need help with briefs, outlines, and writing.
• Writers who value process: If you want to understand why certain topics should be covered and prefer building content from structured research, Frase's workflow is ideal.
• Budget-conscious teams that can't justify $140+/month for Semrush but still want data-driven content optimization.
• Content refreshers: If your main job is updating and optimizing existing content, Frase's GSC integration makes this workflow seamless.

Who Should Use Semrush?

Semrush makes sense if your needs go beyond content writing:

• SEO agencies managing multiple clients who need keyword research, rank tracking, site audits, AND content creation in one platform.
• Marketing teams at mid-size to large businesses who need a single source of truth for SEO data across the organization.
• E-commerce businesses that need technical SEO audits, backlink monitoring, and competitor tracking alongside content production.
• PPC + SEO practitioners who want integrated paid and organic search data (Semrush covers both).
• Content teams that need to scale fast: ContentShake AI's end-to-end approach gets articles out the door quickly, and the built-in keyword research means you never leave the platform.

Alternatives Worth Considering

Frase and Semrush aren't your only options. Two other tools deserve a look:

Surfer SEO ($99/month)

Surfer SEO is probably Frase's closest competitor. Its content editor and optimization scoring are excellent, and the Surfer AI writer can generate full articles. It's more expensive than Frase but offers a more polished interface and slightly more advanced NLP analysis. Best for content teams that want a premium content optimization experience without the full SEO suite of Semrush.

NeuronWriter ($23/month)

NeuronWriter is the budget pick. At $23/month, it delivers solid content optimization, AI writing, and SERP analysis at a fraction of Surfer's price. The interface isn't as sleek and the AI output isn't as polished, but for the price, it's hard to beat. Great for solo creators watching every dollar.

👉 Read our detailed Surfer SEO vs NeuronWriter 2026 comparison for a full breakdown.

Final Verdict

This comparison really comes down to scope vs. specialization:

If you need…	Choose…
Best content briefs and affordable AI writing	Frase ($15-$115/month)
A complete SEO platform with AI content tools	Semrush ($139.95/month+)
Premium content optimization only	Surfer SEO ($99/month)
Budget-friendly content optimization	NeuronWriter ($23/month)

Frase is the smarter buy if content writing is your core activity and you want to keep costs low. Its briefs are genuinely the best in the business, and the AI writer is more than capable.

Semrush is the smarter buy if you need SEO as a discipline — not just content, but keywords, backlinks, audits, competitor intelligence, and rank tracking. The AI writing is a bonus on top of an already indispensable platform.

Many serious SEO professionals actually use both: Semrush for the research and technical SEO, Frase for the content creation workflow. If your budget allows it, that combination is hard to beat.