SEO Writing AI vs Smodin in 2026: bulk SEO article generation vs an AI detection and humanizing toolkit
SEO Writing AI publishes SEO-optimized articles to WordPress at volume. Smodin checks and humanizes AI text before you submit it anywhere. They solve adjacent problems, not the same one.
SEO Writing AI
Smodin- SEO Writing AI pulls live SERP data before generating each article and can bulk-publish up to 100 articles straight to WordPress. Smodin has no SERP analysis and no WordPress publishing feature at all.
- Smodin bundles an AI content detector claiming 99.8% accuracy with under 2-second scans, plus a humanizer aimed at Turnitin-level detection on Premium. SEO Writing AI's humanizer is unlimited on Professional and above but is not benchmarked against academic-grade detectors.
- Neither tool offers full API access on every tier: SEO Writing AI has none on any published plan, while Smodin limits API to Starter and extends it on Premium.
- SEO Writing AI supports 48 languages for generation; Smodin supports 100+ languages across writing, detection, and humanizing, making it the stronger option for non-native English content work.
- SEO Writing AI's entry paid tier is $14/month for 50 articles; Smodin's entry paid tier is around $9/month for Starter access to all four core tools.
- Neither tool offers white-label delivery or client-sharing features on any tier, so agencies using either still need to present deliverables manually.
SEO Writing AI and Smodin both sit under "AI content writing," both score close to identical on paper (7.2 out of 10), and both are cheap enough to try without much risk. That is where the similarity ends. SEO Writing AI is a publishing pipeline: give it a keyword, it pulls live SERP data, writes a full article, and can auto-post up to 100 of them to WordPress in one batch. Smodin is a verification and cleanup layer: it writes too, but its real job is telling you whether a piece of text will trip an AI detector, then rewriting it so it does not, plus checking it for plagiarism against web and academic sources. If your problem is "I need 50 SEO articles published this month," that is SEO Writing AI. If your problem is "I need this AI-assisted essay or article to read as human and pass a plagiarism check before I submit it," that is Smodin. Some users, students in particular, or writers under a client AI-disclosure policy, may reasonably want both.
The tools at a glance
SEO Writing AI
One-click SEO article generator that analyzes live SERP competitors, humanizes output, and auto-publishes to WordPress with built-in bulk generation
SEO Writing AI does one thing at real scale: turn a keyword into a published, SEO-structured article with as little manual setup as possible. Every generation run pulls live SERP data first, so heading structure and topic coverage are shaped by what is actually ranking rather than a fixed template, and the bulk mode can queue up to 100 articles for a single WordPress auto-publish run.
Used by over 50,000 bloggers, marketers, and agencies, the platform leans hard into volume: Brand Voices for consistency, an Amazon affiliate product-listing generator, a Rewriter for refreshing old posts, and an unlimited humanizer on Professional plans and above ($59/month) that strips the generic transitions and repetitive phrasing that make AI text easy to spot. A 2026 addition, a WordPress MCP Server, extends automation further for teams running WordPress-heavy content operations.
What it does not have is an API on any tier, which limits it to the platform's own interface rather than custom pipelines, and its content scoring is noticeably shallower than dedicated optimization editors like Surfer SEO or Neuronwriter. Internal linking is also locked behind the $59/month Professional tier, a real gap at the $14 Starter level for anyone building topical link structure from day one.
| Feature | Free $0 | Starter $14/mo | Professional $59/mo | Pro Plus 1 $119/mo | Pro Plus 2 $230/mo |
|---|---|---|---|---|---|
| Articles included | 3 | 50 | 250 | 500 | 1,000 |
| Bulk generation | ✗ | ✓ | ✓ | ✓ | ✓ |
| Real-time SERP analysis | ✓ | ✓ | ✓ | ✓ | ✓ |
| Humanizer tool | ✗ | ✗ | Unlimited | Unlimited | Unlimited |
| WordPress auto-publish | ✗ | ✓ | ✓ | ✓ | ✓ |
| Internal linking | ✗ | ✗ | ✓ | ✓ | ✓ |
| API access | ✗ | ✗ | ✗ | ✗ | ✗ |
Smodin
AI writer, humanizer, plagiarism checker, and AI detector in one platform trusted by over a million users
Smodin is built around a narrower, more specific workflow than SEO Writing AI: write with AI assistance, check whether the result reads as AI-generated, humanize it if it does, and verify it is not plagiarized before you submit or publish it. All four tools, an AI writer, an AI content detector, a humanizer, and a plagiarism checker, ship in one subscription starting around $9/month, which is genuinely competitive against buying any one of those tools separately.
The detector claims 99.8% accuracy with results in under 2 seconds and sentence-level highlighting of flagged text, trained to recognize output from ChatGPT, other GPT variants, Claude, and Gemini. The humanizer works in the opposite direction, rewriting flagged text to reduce those same detection signals, with Starter handling standard cases and Premium ($14/month) targeting more sophisticated, Turnitin-grade detection. Over 100 languages are supported across the whole stack, which makes Smodin unusually strong for non-native English writers checking AI-assisted drafts.
Smodin has no SERP analysis, no WordPress integration, and no SEO-specific features at all, so it is not a substitute for a tool like SEO Writing AI if publishing volume is the goal. It is also worth being honest about the core mechanic: detection and humanization is a cat-and-mouse race, and Smodin itself does not guarantee any humanized text will permanently evade detectors as those tools keep updating.
| Feature | Free $0/month | Starter from $9/month (billed annually) | Premium from $14/month (billed annually) |
|---|---|---|---|
| AI writer | Limited | Standard | Advanced + Unlimited |
| AI content detector | Limited | Standard | Advanced |
| AI humanizer | Limited | Standard | Advanced (Turnitin-level) |
| Plagiarism checker | Limited | Standard | Advanced (academic sources) |
| API access | ✗ | Limited | Extended |
| Chrome extension | ✗ | ✗ | ✓ |
Head-to-head feature comparison
| Feature | SEO Writing AI | Smodin |
|---|---|---|
| Core use case | Bulk SEO article generation and publishing | AI detection, humanizing, and plagiarism checking |
| Live SERP analysis | Yes | No |
| Bulk generation | Yes, up to 100 articles/batch | Premium only |
| WordPress auto-publish | Yes | No |
| AI content detector | No | Yes, claimed 99.8% accuracy |
| Humanizer | Yes, unlimited on Professional+ | Yes, Turnitin-level on Premium |
| Plagiarism checker | No | Yes, academic sources on Premium |
| Languages supported | 48 | 100+ |
| API access | No | Limited on Starter, extended on Premium |
| White-label / client delivery | No | No |
| Starting paid price | $14/mo | ~$9/mo |
Which should you choose?
SEO Writing AISmodinSEO Writing AISmodinThese tools rank almost identically overall (7.2 each) because they are strong at genuinely different jobs, not because they compete head to head. SEO Writing AI is a production and publishing engine: keyword in, structured article out, published to WordPress, repeatable at scale. Smodin is a quality and risk control layer: AI text in, a probability score and a cleaner rewrite out. Treating this as a single "which is better" question misses that a content team publishing at volume with SEO Writing AI could plausibly run drafts through Smodin's detector before publishing, and neither purchase makes the other redundant.
Bottom line
Choose SEO Writing AI if your goal is publishing volume, SEO-structured articles into WordPress at $14 to $230 a month depending on how many you need. Choose Smodin if your goal is verifying and cleaning up AI-assisted writing before it goes anywhere, especially for academic or client-facing submissions where detection and plagiarism checks matter. If you genuinely need both, the combined cost is still under $25/month at entry tier for either pairing, so it is worth running the free plans on both before committing to just one.
Frequently asked questions
Is SEO Writing AI or Smodin better for publishing blog content?
SEO Writing AI is the better choice for publishing blog content, since it pulls live SERP data, generates full articles, and can auto-publish up to 100 of them to WordPress in a single batch, none of which Smodin offers.
Can Smodin generate SEO-optimized articles like SEO Writing AI?
No, Smodin has no SERP analysis, no SEO scoring, and no WordPress integration; its AI writer handles general drafting, essays, and rewrites, but it was not built as an SEO content pipeline the way SEO Writing AI was.
Which tool is better at humanizing AI content, SEO Writing AI or Smodin?
Smodin is more specifically built for humanizing, with a dedicated detector claiming 99.8% accuracy and a Premium tier targeting Turnitin-level detection, while SEO Writing AI's humanizer is unlimited on Professional plans but is not benchmarked against academic-grade detection tools.
Does SEO Writing AI have a plagiarism checker like Smodin?
No, SEO Writing AI does not include a plagiarism checker; Smodin does, scanning against web sources on Starter and extending to academic databases on Premium, which makes Smodin the stronger pick if originality verification is a requirement.
Can I use SEO Writing AI and Smodin together?
Yes, the two tools are complementary rather than overlapping: you could generate and bulk-publish articles with SEO Writing AI, then run drafts through Smodin's AI detector and humanizer before publishing if AI-detection risk is a concern for your audience or platform.
Which tool is cheaper to start with, SEO Writing AI or Smodin?
Smodin is cheaper at entry, with Starter around $9/month covering all four core tools, compared to SEO Writing AI's Starter tier at $14/month for 50 articles, though both offer a free plan to test core functionality before paying.