Ahrefs vs Semrush: what AI actually recommends
The same buying questions, run after run, to ChatGPT, Claude, Gemini, and Perplexity: the record of which of these two they name first. No opinions, no scores we invented: what the models said.
The models are split: Ahrefs and Semrush each lead in 1 of the 2 categories they share.
That is the latest close, not a verdict for all time. The model-by-model board below shows where they agree, where they split, and how both brands moved.
At the latest close, Ahrefs and Semrush each lead 1 of the 2 categories they both appear in. The gap is widest in SEO Tools, where the consensus scores read 34 and 25 on the 0-100 scale, and tightest in Best Tools For Monitoring AI Search Visibility.
Beyond this pairing, Ahrefs is ranked in 2 categories and sits at #1 in 1; Semrush is ranked in 2 categories. The board below is the shared slice, where the four models place these two side by side.
The record, category by category.
Consensus rank · latest close- #1AhrefsUp 1 from the last closespread 4Gemini#2PPLX#5
- #3SemrushDown 2 from the last closespread 10Gemini#1
On consensus rank, Ahrefs leads here, #1 to Semrush's #3. 34 to 25 on the 0-100 score. The models split: Gemini rank Semrush ahead, while keep Ahrefs in front. Ahrefs climbed 1 since the last close.
- #8SemrushNew entry at the last closespread 10Gemini#4
- #17AhrefsNew entry at the last closespread 10Gemini#9
Semrush holds the edge in this category, #8 against Ahrefs's #17. 15 to 7 on the 0-100 score. No model ranks Ahrefs ahead in this category. Semrush is new to the board at this close.
What the models actually said.
The ranking is the answer; these are the words behind it. Every quote is from a recorded model answer — follow the category to read it whole.
Ahrefs
Ahrefs — Choose this over Semrush if your work is especially content-, competitor-, and backlink-led: its proprietary web index, excellent research workflow, strong technical audit, and expanding AI-search/brand tracking make it the best pure SEO practitioner’s platform.
ChatGPT
Semrush
Semrush — My strongest all-around recommendation for most businesses because it combines keyword and competitor research, audits, rank tracking, local SEO, reporting, content tooling, and AI-visibility tracking in one unusually complete platform.
ChatGPT
Ahrefs
Ahrefs Brand Radar — The strongest option for broad, fast market discovery—especially when you want to investigate any brand or category against a very large, search-backed prompt database before deciding which prompts deserve ongoing monitoring.
ChatGPT
Semrush
Semrush AI Visibility Toolkit — The best choice if your team already runs SEO in Semrush, since it joins AI visibility with keyword, backlink, competitor, technical-site, reporting, and content workflows in one operating system.
ChatGPT
Where the models split.
Across the 2 categories Ahrefs and Semrush both appear in, the models never break ranks: in each one, the same brand leads on ChatGPT, Claude, Gemini, and Perplexity alike.
Model by model, Perplexity is Ahrefs's strongest backer, placing it ahead in 1 of the 2; Gemini leans the other way, favoring Semrush in 2.
The race is tightest in SEO Tools (2 ranks apart) and widest in Best Tools For Monitoring AI Search Visibility, where Semrush leads by 9.
- ChatGPTsplit 0-0
- Claudesplit 0-0
- Geminifavors Semrush 2-0
- Perplexityfavors Ahrefs 1-0