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Head-to-head · AI Blog Writing Tools

SEO Writing AI vs Contentpen

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score SEO Writing AI #2 in AI Blog Writing Tools 9.2/10 Free plan Free plan✓ 1 of 4 features Visit SEO Writing AI
Contentpen #7 in AI Blog Writing Tools 8.5/10 7-day trial Free trial✓ 2 of 4 features Visit Contentpen

SEO Writing AI leads on 1 check, Contentpen on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSEO Writing AI · 9.2/10
  • Free planonly SEO Writing AI
  • Free trialonly Contentpen
  • Most featuresContentpen · 2 of 4

SEO Writing AI scores higher on our rubric for ai blog writing tools: 9.2 against 8.5 out of 10; our editors rank them #2 and #7.

SEO Writing AI offers free plan; Contentpen doesn't.

SEO Writing AI is the better fit for budget-conscious SEO content publishers. Contentpen is the better fit for teams wanting end-to-end SEO publishing.

  • SEO Writing AI fits best

    Budget-conscious SEO content publishers

  • Contentpen fits best

    Teams wanting end-to-end SEO publishing

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature SEO Writing AI 9.2/10 Visit ↗ Contentpen 8.5/10 Visit ↗
At a glance
Editor score 9.2 8.5
Ranking #2 in AI Blog Writing Tools #7 in AI Blog Writing Tools
Best for Budget-conscious SEO content publishers Teams wanting end-to-end SEO publishing
Pricing model Free Paid
Starting price Free plan $27/mo
Free plan ✓ (best) —
Free trial — 7 days
Deployment Cloud Cloud
Platforms Web Web
Integrations 1 integrations 6 integrations
Features SEO Writing AI 1/4 · Contentpen 2/4
Long-form generation Not checked yet Not checked yet
Outline generation Not checked yet Not checked yet
Brand voice controls ✓ ✓
Team collaboration Not checked yet ✓ (best)
Specs
Included words Not checked yet Not checked yet
Blog content formats Not checked yet Not checked yet
Our review
Pros
  • Free plan includes 5 articles, 25,000 words, and AI image generation
  • Generates articles up to 5,000 words with SERP analysis and content briefs
  • Bulk generation, WordPress auto-posting, brand voice, and five integrations
  • Combines research, generation, optimization, analytics, and publishing
  • Supports WordPress, Webflow, Shopify, Wix, Ghost, and ContentStudio
  • Includes bulk generation, calendars, linking, and AI visibility tracking
Cons
  • The Free plan is limited to 5 articles and 25,000 words
  • Professional costs $79 per month
  • Its focus is specialized in SEO and affiliate publishing workflows
  • No free plan; the 7-day trial requires a credit card
  • Plans use annual billing, with monthly amounts shown
  • Some tiers separate article production from SEO visibility features
Our verdict

SEO Writing AI is a web-based AI writing platform for bloggers, marketers, agencies, and affiliate publishers. It generates long-form articles, product reviews, roundups, how-to guides, product listings, and SEO-focused blog content. Its…

Read the review →

Contentpen is a web-based AI writing and SEO platform for small businesses, freelancers, content marketers, and agencies. It covers the workflow from keyword research and SERP analysis through long-form article generation, content…

Read the review →
  1. SEO Writing AIAI Blog Writing Tools 9.2Free plan
  2. ContentpenAI Blog Writing Tools 8.57-day trial

Strengths and trade-offs

  • SEO Writing AI — where it wins

    • Free plan includes 5 articles, 25,000 words, and AI image generation
    • Generates articles up to 5,000 words with SERP analysis and content briefs
    • Bulk generation, WordPress auto-posting, brand voice, and five integrations

    Where it doesn't

    • The Free plan is limited to 5 articles and 25,000 words
    • Professional costs $79 per month
    • Its focus is specialized in SEO and affiliate publishing workflows

  • Contentpen — where it wins

    • Combines research, generation, optimization, analytics, and publishing
    • Supports WordPress, Webflow, Shopify, Wix, Ghost, and ContentStudio
    • Includes bulk generation, calendars, linking, and AI visibility tracking

    Where it doesn't

    • No free plan; the 7-day trial requires a credit card
    • Plans use annual billing, with monthly amounts shown
    • Some tiers separate article production from SEO visibility features

More comparisons

All AI blog writing tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update