Substack vs Beehiiv (2026): What ChatGPT, Claude & Gemini Say

Substack is named in 50 of 50 recorded answers. Beehiiv is named in 49 of 50. On naming, the two are close to level. On order they are not: Substack is named first in 32 of 50 answers and Beehiiv in 15 of 50. All ten models name Substack in every answer, and nine of the ten name Beehiiv in every answer.

This page counts what AI answers name. It does not judge which platform is better.

TL;DR

• A buyer who asks any of these ten models about newsletter platforms will almost always hear both names. The choice is not about whether the models know Beehiiv.
• The difference that matters is order, not presence. When a model opens with a single name, it is usually Substack.
• The lean follows the question. On the comparison question and the paid-newsletter question, several models open with Beehiiv. On the questions framed around a writer, Substack leads.
• The captured guides split the two on pricing model. Substack is free to publish and takes a share of paid-subscription revenue. Beehiiv takes no share of subscription revenue and charges for its paid plans instead.
• Pick on the job you need done: writing and discovery for Substack, paid growth and monetisation tooling for Beehiiv. The reasons for each are below, and none of them is a verdict on quality.

How often do AI models recommend Substack and Beehiiv?

Both are named in almost every answer. Substack is the category leader, so it needs no separate reference row.

Answer share is the share of recorded answers that named the product. First share is the share where it appeared before any other tracked product.

The gap sits in the second number, not the first. Beehiiv’s named-versus-first gap is 68 points. Substack’s is 36 points. Put plainly, Beehiiv is almost always in the answer but usually not at the top of it. The only other product named first anywhere in the category is Ghost, first in 3 of 50 answers. So when a model opens with a single name, it is Substack or Beehiiv in all but a handful of answers.

One measured fact sits on Beehiiv’s side. Beehiiv’s own site is the most cited host in the category’s recorded answers: beehiiv.com carries 112 citations. substack.com carries 10 and support.substack.com carries 11. Citation counts reflect citations returned in the recorded API responses. Coverage varies by model. Gemini citation redirects are resolved to real hosts before counting.

Which models prefer Substack, and which prefer Beehiiv?

On naming, no model prefers one over the other in a way the counts can separate. The only split is one answer from GPT-5.6 Sol.

GPT-5.6 Sol names Beehiiv in four of its five answers (Beehiiv 80% for that model). The answer that leaves it out is the one to “I’m a writer and I need a newsletter platform. What should I use and why?” That answer starts with Substack and offers Ghost and Kit as the alternatives. At family level, that single answer puts the OpenAI models at Beehiiv 93.3%. The Anthropic, Google and Perplexity families name Beehiiv in every answer (Beehiiv 100%).

Preference shows up in order, and order depends on the question. Reading the recorded answers to “Best newsletter platform for a paid newsletter?”, GPT-5.6 Sol, GPT-5.6 Luna, Perplexity and Sonar Reasoning Pro name Beehiiv before Substack. ChatGPT, Claude, Claude Opus 5, Claude Fable 5, Gemini and Gemini 3.5 Flash name Substack first on the same question.

The comparison question tilts further. On “Compare the top newsletter platform options right now.”, ChatGPT, GPT-5.6 Sol, GPT-5.6 Luna, Claude Opus 5, Claude Fable 5, Gemini 3.5 Flash, Perplexity and Sonar Reasoning Pro all open with Beehiiv. Only Claude and Gemini open with Substack.

That leaves the three writer-framed questions carrying most of Substack’s first placements. The sharpest disagreement is inside single families. GPT-5.6 Sol and GPT-5.6 Luna open the paid question with Beehiiv while ChatGPT opens it with Substack. Gemini 3.5 Flash opens the comparison question with Beehiiv while Gemini opens it with Substack. Claude and Gemini are the only models that open both of those questions with Substack.

What do the answers say about each?

The answers describe the two as different tools for different jobs, not as substitutes.

• ChatGPT, on the best platform for a writer: “Best overall for most independent writers: Substack.”
• Gemini, on the best platform for a paid newsletter: “Substack remains the go-to platform for writers launching a new publication without an existing audience.”
• GPT-5.6 Sol, on the comparison question: “Best overall for building a newsletter-first media business” is the line it gives beehiiv.
• Perplexity, on a paid newsletter: “the best default choice is usually Beehiiv if you want the strongest mix of monetization, growth tools, and control over revenue.”
• Claude Opus 5, before answering which platform to recommend to a writer: “most “best newsletter platform” roundups run affiliate programs, and beehiiv’s is unusually generous”

The last quote matters for reading the others. Claude Opus 5 names Beehiiv here as a caution about its sources, not as a pick. A count of names records that answer the same way as a recommendation.

How do Substack and Beehiiv differ?

They differ first on how they charge. The panel’s own data holds no pricing for either product, so every pricing line below comes from a captured page.

Substack. Publishing on Substack is free, regardless of how many subscribers a writer has. Once paid subscriptions start, Substack takes a cut of each subscription plus payment-processing and billing fees. Using a custom domain carries a one-time fee. EmailTooltester describes it as a newsletter platform created with writers in mind. Its Email Detective data shows Substack used almost exclusively by media brands. In the recorded answers, Substack is named for simple setup and built-in discovery, as the quotes above show.

Beehiiv. Beehiiv sells tiered plans, starting with a free Launch plan. Paid subscriptions require the Scale plan or above. Beehiiv takes no share of paid-subscription revenue. Stripe’s payment-processing fee still applies. The same Email Detective data puts only around half of Beehiiv’s users among media brands, with marketing organisations, agencies and SaaS companies making up others. In the recorded answers, Beehiiv is named for growth and monetisation.

The trade-off is fixed cost against revenue share. Beehiiv’s own comparison page frames it as discovery against margin and control. That page is vendor-authored and argues for Beehiiv.

When should you pick Substack?

Pick Substack if the job is writing and being found, and a paid tier comes later or not at all.

• It holds the opening slot in 32 of 50 answers, the highest named-first count in the category.
• Its first placements concentrate on the writer-framed questions, the ones closest to a solo writer’s own search.
• Publishing costs nothing until a writer charges readers.
• Its discovery engine and social layer can put a post in front of readers who have never heard of the writer.
• Discussion threads, Notes and reader comments give it community features built into the platform.

The measured caution: Beehiiv, not Substack, is the name most models open with on the comparison question.

When should you pick Beehiiv?

Pick Beehiiv if paid revenue, segmentation or advertising income is the goal from the start.

• Named in 49 of 50 answers, it is present almost everywhere Substack is.
• GPT-5.6 Sol, GPT-5.6 Luna, Perplexity and Sonar Reasoning Pro open their paid-newsletter answers with it.
• It is the name most models open with on the comparison question, as the per-model split above shows.
• No share of subscription revenue is taken by the platform.
• Segments can be built from attributes, engagement, signup form and survey answers.
• A built-in ad network lets a newsletter earn from a small list before direct sponsorships make sense.

The measured caution: it is named first in 15 of 50 answers, against Substack’s 32.

How this sits against the Substack vs Beehiiv guides

The pages that rank for this query compare features. This page counts names. Four of them were captured in full.

EmailTooltester. A scored review that awards a point per category round and names Beehiiv the overall pick. It gives Substack the ease-of-use and community rounds. Its Beehiiv links point to an outbound path on its own domain rather than to beehiiv.com directly.

Beehiiv’s own comparison page. Vendor-authored. It argues that beehiiv is the stronger choice for anyone who wants to keep all subscription revenue. It includes an earnings calculator and quotes from publishers who left Substack. It also concedes that Substack works for writers who have not started monetising and want its network to send readers.

DevOpsCube. Written by a newsletter operator who used both and moved to Beehiiv. The page offers a Beehiiv discount code and links to Beehiiv with a referral tag. It recommends Substack for writers, journalists and personal-brand builders, and Beehiiv for business-focused newsletters.

Evernomic. Written by a founder who runs publications on Substack, Beehiiv and Ghost. The author calls beehiiv a personal favourite of the three. The page’s Beehiiv links carry a referral tag. It credits Substack with better paid conversion and a discovery network the others lack.

A Reddit thread ranking for the same query could not be captured, so it is not described here.

The distinction: those pages rate features and, in several cases, earn from a referral. This page records which name each model gives a buyer, how often, and in what order. The per-model split and the order readings are not on any of them.

How the sample was built

10 models x 5 fixed prompts = 50 recorded answers. Each model answered each question once. The five questions, verbatim:

1. What is the best newsletter platform for a writer? Name specific products.
2. Which newsletter platform would you recommend to a writer in 2026?
3. Compare the top newsletter platform options right now.
4. I’m a writer and I need a newsletter platform. What should I use and why?
5. Best newsletter platform for a paid newsletter?

The models come from four families. OpenAI and Anthropic contribute 15 answers each. Google and Perplexity contribute 10 each. The full category record, with every answer and cited source, is at /index/newsletter-platforms. How the panel runs and what it counts is at /method.

What these counts cannot tell you

The panel measures what AI answers name, not which product is better. A high count says nothing about deliverability, support, pricing fairness or fit with a particular stack. Being named differs from being recommended: the Claude Opus 5 quote above names Beehiiv as a caution. Each model gave one answer per question, in one dated snapshot, through the API rather than a consumer chat app, in English. Names are matched as strings, so Beehiiv counts under “Beehiiv” or “beehiiv”. The question-by-question order readings above are this page’s reading of the recorded answers, not a separate published count.

Frequently asked questions

Why is everyone leaving Substack?

The panel measures AI answers, not people moving platforms, and every model named Substack in all five of its answers. The captured pages do give reasons some writers move. EmailTooltester reports that many Substack users have been put off by the platform’s constant changes and social-style features. Beehiiv’s comparison page quotes a publisher who left because Substack’s cut stopped being sustainable as paid subscribers grew. That page is vendor-authored.

What platform is better than Substack?

The counts cannot say that any platform is better. They show which platforms the models name alongside Substack. Beehiiv is named in 49 of 50 answers, Ghost in 48 and Kit in 44. None of them is named first as often as Substack.

Why is everyone going to Substack?

The captured pages point to discovery. Evernomic says Substack’s discovery engine and social layer create a network effect the other platforms lack. EmailTooltester calls Substack’s creator network one of its biggest selling points. DevOpsCube adds that it is free to start, with no upfront cost. In the panel, Substack is named first in 32 of 50 answers.

Is Substack growing or dying?

This edition cannot answer that. It is one snapshot of what AI answers name, not a measure of users or revenue. In it, Substack is named in 50 of 50 answers. Evernomic reports that Substack is experimenting with new monetisation channels, including what sounds like an ad network.

Can you move a newsletter from Substack to Beehiiv?

Yes, according to the captured pages. DevOpsCube says subscribers can be migrated from Substack to Beehiiv without losing the audience, and that its author has done it once. Beehiiv’s own page describes importing the list, the archive and paid subscriptions. The panel does not measure migration.