GTM AI Index

Index › Vendors › Semrush Writing Assistant · September 2026 Edition

Semrush · 1 category · Named, not ranked

Semrush Writing Assistant

6Judge labels

1First choices

1Negative labels

5 of 12Models named it

1Category

September 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-09-16.3, every buyer segment counted.

Standing

5 labels, too few to rank

A product needs 10 labels in a category before a share or quadrant is stated. Semrush Writing Assistant was named 5 times in SEO, where Surfer SEO led with 25%. The labels and the evidence are below, counted exactly.

By buyer segmentRead the same way at every buyer size.

Small businessnot named

No model named it for this buyer.

Mid-market15 of 113

under the label threshold

Enterprise30 of 74

under the label threshold

In seo · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Semrush Writing Assistant for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant
SEO and content optimization platforms	Marketing	2%	15 of 113	20%	5	under 10 labels · led by Surfer SEO at 25%

Movement

This is the first edition on this tier, so no move can be computed for Semrush Writing Assistant yet. The next is due October 1, 2026. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Semrush Writing Assistant across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.

Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	0	0	0	1	1
GPT-5.4 mini	0	0	0	0	0
Gemini 3.5 Flash	0	0	0	0	0
Perplexity Sonar	0	0	0	0	0
Grok 4.1 Fast	0	0	1	0	1
Mistral Small	0	0	0	0	0
DeepSeek V4 Flash	0	0	1	0	1
Llama 4 Maverick	0	0	0	0	0
Qwen 3.7 Flash	0	0	0	0	0
Kimi K2	0	0	0	0	0
GLM 4.7 FlashX	0	1	0	0	1
MiniMax M2.5	1	0	0	0	1

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct0 labelsNone

Paraphrase4 labels1

Comparative1 labelNone

Budget-constrained0 labelsNone

Scale-constrained0 labelsNone

Negative1 labelNone

First choiceAlternativeMentionNegative6 labels in all, every segment counted; 1 of the 1 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“I'd recommend starting with Surfer SEO or Semrush Writing Assistant” MiniMax M2.5 · SEO · paraphrase prompt · first choice

“Excels at flagging technical SEO problems beyond content quality” GLM 4.7 FlashX · SEO · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“doesn't make much sense as a standalone purchase, costing more than most dedicated content optimization platforms at $249.95/month” Claude Haiku 4.5 · SEO · negative prompt · hard negative

Named alongside

The products named in the same answers as Semrush Writing Assistant, over the 6 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Semrush Writing Assistant was named but was not.

ProductSame answerTook the first choice insteadHead to head

Surfer SEO5 of 63Not in the top three

Frase5 of 60Not in the top three

MarketMuse4 of 61Not in the top three

Clearscope4 of 60Not in the top three

Ahrefs3 of 60Not in the top three

SE Ranking2 of 60Not in the top three

Ahrefs Content Helper1 of 60Not in the top three

Dashword1 of 60Not in the top three

Grammarly1 of 60Not in the top three

HubSpot1 of 60Not in the top three

A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Semrush Writing Assistant. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 1 of the 6 answers that named Semrush Writing Assistant and are not a share of its labels.

Domains cited

agilitypr.com1

aira.net1

coaxsoft.com1

erlin.ai1

explodingtopics.com1

frase.io1

gomega.ai1

lowfruits.io1

merchynt.com1

onelittleweb.com1

Ten of the ten domain citations in answers naming Semrush Writing Assistant came from somebody else's page.

Pages cited

agilitypr.com/pr-news/content-media-relations/common-content-optimization-mistakes-and-how1

aira.net/blog/seo-in-2025-and-beyond1

coaxsoft.com/blog/best-content-optimization-tools1

erlin.ai/blog/content-optimization-platforms1

explodingtopics.com/blog/future-of-seo1

frase.io/blog/content-optimization-is-dead1

gomega.ai/blog/ai-seo-software-comparison-20261

lowfruits.io/blog/best-content-optimization-tools1

Pages are listed as the models cited them.

The company

Semrush is the company behind Semrush Writing Assistant.

Website: semrush.com
Headquarters: Boston, United States
Founded: 2008
Ownership: Public, SEMR on New York Stock Exchange

From Wikidata, fetched September 14, 2026. These describe the company, not the product's standing, and a claimed page can dispute any of them. · Wikidata · LinkedIn · Crunchbase

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Semrush Writing Assistant's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Semrush Writing Assistant, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at semrush.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.