September 2026 snapshot · 72 AI answers Contested

Publishing & Newsletters: AI Visibility Ranking

Platforms for publishing content and running newsletters. Right now, Substack is the brand AI assistants recommend most, with a Visibility Score of 63 and the #1 spot in 39% of answers. Head-to-head: Substack vs Ghost →

These rankings are measured from what the three models know from training, not a live web search. When the models DO search the web, see which sources they cite. Methodology.

Three-way scramble at the top, Substack barely ahead.

Substack, Ghost, and Beehiiv are separated by fewer than 6 points and each appears in roughly 68% of answers, making this one of the tightest races in the index. Substack's edge comes mostly from being the first pick 39% of the time, but Ghost actually scores higher with Gemini (65) and Claude (63), so model choice shifts the leader. Kit and WordPress both fall 19 or more points behind the top three, and Kit's first-pick rate of 1.4% suggests AI models mention it as an afterthought rather than a recommendation.

AI-generated analysis of the September 2026 measurements.

#	Brand	Visibility Score	Trend (3 mo)	Mention rate	Avg. position	#1 pick rate	Models
1	Substack	63 ±4	flat	68%	1.8	39%	ChatGPT #1 Claude #1 Gemini #3
2	Ghost	60 ±5.3	flat	69%	2.4	24%	ChatGPT #3 Claude #2 Gemini #1
3	Beehiiv	57 ±3.2	flat	68%	2.6	17%	ChatGPT #2 Claude #3 Gemini #2
4	Kit	38 ±4.3	flat	56%	4.2	1%	ChatGPT #4 Claude #5 Gemini #5
5	WordPress	38 ±3.9	▲ 7	46%	2.8	6%	ChatGPT #5 Claude #4 Gemini #4
6	Mailchimp	19 ±5.4	flat	33%	5.4	0%	ChatGPT #6 Claude #6 Gemini #13
7	Buttondown	14 ±2.2	▼ 6	21%	4.5	0%	ChatGPT #10 Claude #9 Gemini #6
8	Medium	11 ±3.7	flat	19%	5.4	0%	ChatGPT #12 Claude #7 Gemini #12
9	Adobe Experience Manager	10 ±2.7	flat	10%	1.0	10%	ChatGPT #8 Claude #11 Gemini #8
10	MailerLite	10 ±1.6	▲ 4	15%	4.7	1%	ChatGPT #7 Claude #15 Gemini #9
11	Contentful	8 ±1.8	flat	11%	3.5	0%	ChatGPT #11 Claude #10 Gemini #10
12	LinkedIn	7 ±3.5	flat	11%	4.9	0%	ChatGPT #13 Claude #13 Gemini #7
13	Webflow	7 ±1.7	flat	11%	5.1	0%	ChatGPT #15 Claude #8 Gemini
14	HubSpot	5 ±2.3	flat	14%	7.5	0%	ChatGPT #14 Claude #14 Gemini #11
15	Sitecore	5 ±2.5	flat	6%	2.0	0%	ChatGPT #9 Claude #12 Gemini

The ± under each score is the reliability band: how much the number would move if we re-ran the identical measurement. It is tight because each prompt is sampled multiple times. It is not the same as how much the ranking depends on which prompts we ask — a separate, wider figure shown on hover.

Just below the cutoff: RankMath (4.4), Listmonk (4.3), Mailpoet (4), Optimizely (3.8), Brevo (3.3). 64 brands were scored in this category; the leaderboard shows the top 15.

Visibility Score: position-weighted presence across all measured answers, 0 to 100. A score of 100 means the brand was the first recommendation in every answer. Every point in a trend line is a live monthly measurement; there is no modeled or backfilled history. Full methodology.

Openness 38/100: the share of this category's recommendation weight not held by the leader.

Compare brands in Publishing & Newsletters head-to-head → · Explore the prompt tree →

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Do the models agree?

Per-model Visibility Scores for the top 10. A long gray bar means the three assistants disagree about the brand. Hover a row for exact values.

ChatGPT Claude Gemini

Where they land in the answer

When a brand is mentioned, where does it appear? Box shows the middle 50% of positions, the thick line is the median, whiskers are the extremes. Hover a row for the detail.