HEAD TO HEAD
Semrush vs OmniSEO
How Semrush and OmniSEO compare on GEO Score, pricing and answer-engine coverage.
Reviewed by Marcus TaylorUPDATED JUN 9, 2026INCLUDES PARTNER
SemrushTOP RATED
83/100 GEO Score
★★★★★4.6our rating
Bolts AI-search visibility onto the SEO platform millions of marketers already run — prompt tracking, brand mentions and optimisation in one mature suite.
Start free trial ↗$99/mo · Free trial available
VS
OmniSEOBEST VALUE
81/100 GEO Score
★★★★★4.6our rating
Pairs classic rank tracking with AI optimization in one tidy, well-priced platform.
Try free audit ↗$89/mo · 50% off first month + free brand audit
THE BOTTOM LINE
Semrush and OmniSEO solve overlapping problems from different angles. Semrush leans into mature all-in-one suite; OmniSEO into best value.
Choose Semrush if…
✓ Mature all-in-one suite.
✓ Daily prompt tracking.
✓ Excellent support.
HOW THEY DIFFER
The short version.
On our benchmark Semrush takes the higher overall GEO Score (83 to 81) — but that headline hides where each one really pulls ahead.
On reach, OmniSEO is ahead — 9 of 10 engines versus 5. If the engines your buyers use aren't covered, the rest barely matters.
On price, OmniSEO starts lower — $89/mo against $99/mo — though the cheaper sticker isn't always the better deal once coverage is in.
In short, Semrush suits mid-market/agency/enterprise teams; OmniSEO leans toward mid-market/agency/ecommerce.
Where Semrush wins
- ✓support & onboarding
Where OmniSEO wins
- ✓value for money
AT A GLANCE
Side by side.
METRIC
Semrush
OmniSEO
GEO Score
83✓
81
Starting price
$99/mo
$89/mo✓
Free trial
Free trial available
50% off first month + free brand audit
Engine coverage
5 / 10 engines
9 / 10 engines✓
Best for
Mid-market, Agency, Enterprise
Mid-market, Agency, Ecommerce
Value for money
80 / 100
84 / 100✓
Support & onboarding
90 / 100✓
76 / 100
FACTOR BREAKDOWN
How the GEO Score splits.
SemrushOmniSEO
Engine coverage82 vs 84
Ease of use80 vs 80
Value for money80 vs 84
Support & onboarding90 vs 76
COVERAGE
Which engines each one watches.
ENGINE
Semrush
OmniSEO
ChatGPT
✓
✓
Google AI Overviews
✓
✓
Gemini
✓
✓
Perplexity
✓
✓
Copilot
✓
✓
Claude
—
✓
GkGrok
—
✓
DeepSeek
—
✓
Meta AI
—
✓
RfAmazon Rufus
—
—
Total
5/10
9/10
PRICING
What you'll actually pay.
Semrush
$99/mo
Free trial available
- ·AI Visibility Toolkit $99/mo
- ·Semrush One plans $199–$549/mo
- ·Gemini & Google AI Mode are add-ons on some tiers
OmniSEO
$89/mo
50% off first month + free brand audit
- ·Essentials $89 (4 engines)
- ·Professional (10 engines, incl. Claude)
- ·WebFX managed $3K–$7.5K/mo
FAQ
Semrush vs OmniSEO, answered.
Is Semrush or OmniSEO cheaper?
OmniSEO. Semrush starts at $99/mo; OmniSEO at $89/mo.
Which tracks more AI engines?
OmniSEO, with 9 of 10 engines to 5.
Which has the higher GEO Score?
Semrush, at 83/100 versus 81.
Can I use Semrush and OmniSEO together?
Yes — teams often pair a monitoring-led tool with a content-led one. The overlap is usually small enough that running both for a quarter is a reasonable way to decide.