COMPARISON
Obsero vs Semrush
Obsero was built for the zero-click era. We talk prompts, not keywords, and track visibility, not rankings. Semrush is a legacy SEO platform adapting to report on GEO metrics, so what you are buying is an AI module inside an SEO suite.
Built for AI search, not adapted to it
Designed for AI search, not adapted to it
One platform was architected for LLM answers. The other was architected for ranked results and is catching up.
OBSERO
Built for the zero-click era
We talk prompts, not keywords. We track visibility and prominence, not rankings. Every metric exists because of how LLM answers behave, and nothing is inherited from a rank tracker.
SEMRUSH
An AI module in an SEO suite
A platform built in 2008 around keywords, domains and ranked positions, with AI Optimization added in 2025. Prompt tracking inherits the shape of rank tracking, and pricing still counts websites and keywords.
At a glance
Obsero vs Semrush at a glance
What you pay for
One pricing lever. Everything else included.
PRICED ON
Prompt volume
Pick your prompt volume and the rest scales with it. Semrush builds on legacy SEO pricing, where extra seats, extra markets and features such as API access are charged on top.
INCLUDED AS STANDARD
MCP, API, export
MCP and API access, full data export, unlimited competitors and unlimited seats on every plan. Semrush reserves API access for its higher tiers and charges from $45 a month per additional user.
NO SUITE ATTACHED
AI search only
You are not buying monitored websites and tracked keywords to reach the AI module. Obsero sits alongside whatever SEO tooling you already run rather than replacing it.
One platform, or the right platform
Platform agnostic, not Google first
Semrush built its reputation on Google, because that is where SEO lived. Its AI reporting carries that centre of gravity with it.
Obsero is deliberately platform agnostic. ChatGPT, Gemini, Claude, Perplexity and Google AI Overviews are treated as equals, because we do not know which engine will matter most to your category next year, and neither does anyone else.
An honest caveat
Where Semrush may be the better choice
Semrush is a serious platform with SEO data we do not try to match. There are cases where it is the right call.
You need to replace your SEO stack
If you are buying SEO tooling anyway, the bundle is a genuine saving and their keyword, backlink and rank data is excellent. In that case the consolidation argument holds.
You are already using Semrush
If Semrush is already embedded across your team and you want one generalist platform rather than an AI search specialist, switching on their AI module is the path of least resistance.
Procurement is the gating factor
A long-established public company clears enterprise security review more easily than a younger vendor. If that is what decides your shortlist, it is a fair reason to start there.
Common questions
Frequently asked questions
What is the main difference between Obsero and Semrush?
Semrush is an SEO platform, built in 2008, that added AI visibility tracking in 2025. Obsero is an AI search platform that was designed around how LLMs behave. Semrush sells AI visibility as a module inside a broad marketing suite. Obsero sells AI search on its own, alongside whatever SEO tooling you already use, with an in-house GEO consultancy attached.
We already pay for Semrush. Why would we add Obsero?
Because they solve different problems and Obsero does not replace your SEO tooling. Keep Semrush for keywords, backlinks and rank tracking. Use Obsero for the AI layer, where prominence and sentiment matter and where you want unlimited seats so the whole team can see the data. Many of our clients run both.
Is it not simpler to have everything in one platform?
Simpler, yes. Cheaper, only if you were going to buy the SEO suite anyway. If you already have SEO tooling you are happy with, consolidating means paying for a second licence and absorbing a migration to reach the AI module you actually wanted. The honest test is whether you were planning to replace your SEO stack this year.
How many AI platforms does each tool track?
Obsero tracks three platforms on Pro and six on Advanced, including ChatGPT, Gemini, Claude, Perplexity and Google AI Overviews. Semrush covers the core engines on its published plans and lists full LLM coverage, including Claude and Grok, as an Enterprise capability.
Does Semrush offer GEO consultancy?
Semrush Enterprise customers get a customer success manager, structured onboarding and quarterly reviews. That is platform adoption support, which is valuable but different from GEO delivery. Obsero consultants run the audit, build the strategy and execute the content and outreach work alongside your team.
See how you actually appear in AI search
Keep the SEO stack you already have. Tell us where you are today and we will show you where you could be. No obligation, just an honest conversation.