Grok
Free tier available
- Free$0
- X Premium$8/mo
- X Premium+$40/mo
B
7.5/10Grok
VS
Our pickA
8.0/10SEMrush
Grok vs SEMrush
Tier-list head-to-head. SEMrush takes the A-tier slot — here's the breakdown.
Last reviewed May 19, 2026· sweep-fresh
Spec sheet
At a glance
| Grok | SEMrush | |
|---|---|---|
| Tier | B-tier | A-tierwin |
| Overall score | 7.5 / 10 | 8.0 / 10win |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | People who live on X/Twitter and want an AI that can tap into that data in real-time. | Marketing teams and agencies who need one platform for SEO, PPC, and content marketing research. |
| Last reviewed | 2026-05-19 | 2026-03-27 |
Head-to-head
Score showdown
Rated 1-10 on the same rubric across all 130 tools we cover.
Ease of useTie
Grok
7.0
SEMrush
7.0
Output quality+0.5 SEMrush
Grok
7.5
SEMrush
8.0
Value+0.5 Grok
Grok
7.5
SEMrush
7.0
Features+2.0 SEMrush
Grok
8.0
SEMrush
10.0
Overall+0.5 SEMrush
Grok
7.5
SEMrush
8.0
What you'll pay
Pricing snapshot
Look past the headline number -- entry-tier limits drive most cost surprises.
SEMrush
Free tier available
- Free$0
- Pro$139.95/mo
- Guru$249.95/mo
Benchmark Head-to-Head
Grok 4.20 benchmarks — SEMrush has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 88.5% |
| GPQA Diamond | Graduate-level science questions | 85% |
| HumanEval | Python code generation | 90% |
| Humanity's Last Exam | Frontier difficulty questions | 50.7% |
The decision
Which should you pick?
Use-case anchors and category strengths, side by side.
Pick Grokif…
B
7.5/10- ✓People who live on X/Twitter and want an AI that can tap into that data in real-time.
- ✓Also good for users who find mainstream chatbots too sanitized and want something with more personality.
People who live on X/Twitter and want an AI that can tap into that data in real-time. Also good for users who find mainstream chatbots too sanitized and want something with more personality.
Visit GrokPick SEMrushif…
A
8.0/10- ✓More feature surface area for power users who'll use the depth
- ✓Marketing teams and agencies who need one platform for SEO, PPC, and content marketing research.
Marketing teams and agencies who need one platform for SEO, PPC, and content marketing research.
Visit SEMrushBottom line
The verdict
SEMrush edges out Grok by 0.5 points (8.0 vs 7.5) -- a A-tier vs B-tier split that's narrow but real. Not a blowout; both belong on a shortlist. The score gap shows up most clearly in the categories that matter for SEMrush's strengths, so if those categories are your priority, the lead translates.
Pricing-wise, both tools have a free tier (Grok starts $0, SEMrush starts $0), so you can test either without committing. Compare what each free tier actually unlocks -- usage caps, model access, and feature gates differ a lot more than the headline price suggests, especially as both vendors have tightened limits in 2026.
By use case: pick Grok when people who live on x/twitter and want an ai that can tap into that data in real-time. Pick SEMrush when marketing teams and agencies who need one platform for seo, ppc, and content marketing research. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in SEMrush's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Grok's lane, the score gap matters less than the fit.
Bottom line: SEMrush is the safer default for most readers, but Grok is competitive enough that the tie-breaker is your specific workload, not the spec sheet.
Keep digging
Compare more & explore
Built from our daily AI-tool sweep, last touched May 19, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.