KeywordTool.io vs Originality.ai (2026)
We compared both. Here is the honest comparison.
KeywordTool.io
70/100
Free
GoodVS
Originality.ai
81/100
From $0.01/credit
Top PickScore Breakdown
Category
KeywordTool.io
Originality.ai
Output Quality
68
▼ Loses86
▲ WinsSpeed
72
▼ Loses78
▲ WinsEase of Use
74
▼ Loses80
▲ Winsfeatures
70
▼ Loses76
▲ WinsOverall
70
81
Pricing
Starting Price
Free
From $0.01/credit
Real Price
Free / $89/mo
$14.95/mo
Price Note
Free tier: keywords without search volume; Pro: full data
Pay-per-scan or $14.95/mo for 200 scans
KeywordTool.io
Best For
✓ Content ideation
✓ YouTube creators
✓ Amazon sellers
✓ Quick long-tail discovery
Not For
✗ Full SEO campaigns
✗ Competitive analysis
✗ Technical SEO
Originality.ai
Best For
✓ SEO agencies managing AI content at scale
✓ Publishers with contributor networks
✓ Content managers verifying AI usage policies
Not For
✗ Casual bloggers who write their own content
✗ Writers who don't need AI detection in their workflow
Pros & Cons
KeywordTool.io
+ Pulls directly from Google, YouTube, Amazon, Bing autocomplete
+ Free tier generates 750+ long-tail keywords instantly
+ YouTube keyword research is best-in-class
+ No account needed for basic searches
− No search volume on free tier
− Very expensive paid plan for what you get
− No difficulty scores or SERP analysis
Originality.ai
+ Highest detection accuracy we've reviewed — caught GPT-4o, Claude, and Gemini outputs
+ Combines AI detection + plagiarism check in one scan
+ Readability scoring alongside detection results
+ Team features: scan multiple URLs, export reports, API access
+ Full-site scan mode — checks entire domains, not just pasted text
− Credit model gets expensive for high-volume content operations (100K+ words/mo)
− Occasional false positives on highly formulaic human writing
− No real-time browser extension (must paste text or submit URL)