MODELDRIFT.WATCH

Sep 28 · Day 19

MINOR · GEMINI · QUESTION 32

Gemini changed its list for a solo founder’s request for an email platform.

Why it’s minor

Which products a model recommends is read out of its answer by the least reliable part of our scorer, so compare the two answers before reading much into this.

The full answers

Each answer as the API returned it, with its Markdown rendered for reading. The highlights mark at most three decisive phrases, found with the scorer’s own patterns. Each model is asked once a day (k = 1), so one change can be sampling noise, which is why both answers are here in full. How scoring works.

Asked verbatim · Question 32, asked by a solo founder

I'm a solo bootstrapped founder in the US. What email marketing platform should I use?

SEP 27beforePermalink

Picks read from the answer, in order
  1. MailerLite
  2. Loops
  3. ConvertKit
  4. Beehiiv
  5. Brevo

As a solo, bootstrapped founder in the US, your primary constraints are budget (cash) and time. You need a platform with a generous free tier, an intuitive interface so you don’t waste hours learning it, and predictable pricing as you scale.

The best platform for you depends heavily on what type of business you are building. Here are the top recommendations categorized by business model:

1. The Best All-Rounder: MailerLite

Best for: E-commerce, physical products, agencies, and general small businesses.
MailerLite is widely considered the best alternative to Mailchimp for bootstrappers. It is incredibly easy to use, has a clean interface, and offers outstanding value for money.

  • •Why it’s great for bootstrappers: It includes a drag-and-drop website/landing page builder. If you don't have a website yet, you can build one for free on MailerLite to start collecting leads.
  • •The Free Tier: Up to 1,000 subscribers and 12,000 emails per month. Includes automations and landing pages.
  • •Scaling Cost: Very cheap. Paid plans start at just $9–$15/month.

2. Best for SaaS & Indie Hackers: Loops (Loops.so)

Best for: Software-as-a-Service (SaaS), web apps, and tech-heavy startups.
Loops was built specifically for modern software companies. It is wildly popular right now among US solo tech founders.

  • •Why it’s great for bootstrappers: It combines marketing emails (newsletters, product updates) and transactional emails (password resets, welcome emails) in one platform. You don't have to pay for two separate services like Resend and Mailchimp.
  • •The Free Tier: Up to 1,000 contacts and 2,000 sends per month.
  • •Scaling Cost: Starts at $49/month (a bit higher entry for paid, but replaces the need for a separate transactional email provider).

3. Best for Creators & Info-Products: ConvertKit (Now rebranding to "Kit")

Best for: Coaches, consultants, course creators, and personal brands.
ConvertKit is built specifically to help creators monetize their audiences. It has powerful, visual automation workflows (e.g., "If they click this link, tag them as interested in Product A and send them this email sequence").

  • •Why it’s great for bootstrappers: You can sell digital products, subscriptions, and tip jars directly through ConvertKit using Stripe. It also has a "Creator Network" that helps you grow your list by getting recommended by other founders.
  • •The Free Tier: Up to 10,000 subscribers (though automations are locked on the free tier).
  • •Scaling Cost: Starts at $29/month to unlock automations.

4. Best for "The Email is the Product": Beehiiv

Best for: Paid newsletters, media companies, and content-first startups.
If your core business model involves writing a newsletter and eventually selling ads (sponsorships) or paid subscriptions, Beehiiv is the undisputed king right now.

  • •Why it’s great for bootstrappers: It has a built-in referral program, an ad network you can join to monetize quickly, and excellent SEO capabilities for the web versions of your emails.
  • •The Free Tier: Up to 2,500 subscribers (very generous) with no sending limits.
  • •Scaling Cost: Flat rate pricing starting at $39/month (they don't penalize you for growing your list quickly).

5. Best for Massive Lists on a Budget: Brevo (formerly Sendinblue)

Best for: B2B founders with massive scraped/purchased lists, or apps that send very infrequent emails.

  • •Why it’s great for bootstrappers: Brevo charges by the email sent, not by the number of contacts you have. If you have a list of 20,000 people but only email them once a month, every other platform will charge you $150+ per month. Brevo will do it for a fraction of that.
  • •The Free Tier: Unlimited contacts, but you can only send 300 emails a day.
  • •Scaling Cost: Starts at $25/month for 20,000 emails (with unlimited contacts).

⚠️ The One to Avoid: Mailchimp

While it's the most famous name, Mailchimp has become increasingly expensive and complex over the years. They count unsubscribed contacts against your billing limits, their automations are clunky compared to newer tools, and their pricing ramps up aggressively as you grow.

Summary Recommendation:

  • 1.If you are building SaaS, use Loops.
  • 2.If you are selling Digital Products/Courses, use ConvertKit.
  • 3.If you are building a Newsletter, use Beehiiv.
  • 4.For literally anything else, use MailerLite.

One Final Bootstrapper Tip: Since you are in the US, remember that recent changes by Google and Yahoo require bulk senders to have a custom domain with DMARC, DKIM, and SPF records set up. Do not send marketing emails from a @gmail.com address. Buy a $12 domain, set up Google Workspace or Zoho (free), and authenticate your domain with whichever platform you choose above to ensure your emails actually reach the inbox.

SEP 28afterPermalink

Picks read from the answer, in order
  1. MailerLite(https://www.mailerlite.com/)
  2. Loops.so(https://loops.so/)
  3. Beehiiv(https://www.beehiiv.com/)
  4. Substack(https://substack.com/)

As a solo, bootstrapped founder, your most precious resources are cash and time. You need an email platform that has a generous free tier, an intuitive interface that doesn't require a tutorial to use, and the ability to scale without suddenly costing you hundreds of dollars a month.

To give you the best recommendation, you have to categorize how you plan to use email. Here is the breakdown of the best platforms based on your specific business model.

1. If you are building a SaaS or E-commerce product

You need: Automated onboarding sequences, waitlists, user segmentation, and drip campaigns.

  • •Top Recommendation: [MailerLite](https://www.mailerlite.com/)
  • •Why it’s great: It has arguably the best free tier on the market for traditional email marketing. The interface is incredibly clean, and their visual automation builder (for setting up drip campaigns) is easy to use.
  • •Pricing: Free up to 1,000 subscribers and 12,000 emails/month. Paid plans start at just $9/month.
  • •The Indie Hacker Alternative: [Loops.so](https://loops.so/)
  • •Why it’s great: Built specifically for modern SaaS companies and highly popular among solo founders right now. It merges marketing emails (newsletters, product updates) with transactional emails (password resets, receipt emails) beautifully.
  • •Pricing: Free up to 1,000 contacts.

2. If you are building an Audience / Media Business

You need: To send a regular newsletter, grow a subscriber base, and maybe eventually charge for premium content or sponsorships.

  • •Top Recommendation: [Beehiiv](https://www.beehiiv.com/)
  • •Why it’s great: Built by the early team behind Morning Brew, it has incredible built-in growth tools (referral programs, recommendation networks). It also lets you build a customized web presence.
  • •Pricing: Free up to 2,500 subscribers (this is massive for a bootstrapper). They don't take a cut of your revenue if you launch a paid tier; they just charge a flat monthly rate once you upgrade.
  • •The "Zero Friction" Alternative: [Substack](https://substack.com/)
  • •Why it’s great: You can set it up in 5 minutes. It is completely free forever for sending emails, no matter how big your list gets.
  • •The Catch: If you ever decide to charge for a paid version of your newsletter, Substack takes a permanent 10% cut of your revenue.

3. If you are doing B2B Cold Outreach (Sales)

Warning: Do not use traditional tools like MailerLite, Mailchimp, or ConvertKit to send cold emails to people who didn't opt-in. They will ban your account immediately.

  • •Top Recommendation: [Instantly.ai](https://instantly.ai/) or [Smartlead.ai](https://www.smartlead.ai/)
  • •Why they are great: These are designed specifically for cold email. They allow you to connect multiple Google Workspace/Microsoft inboxes, "warm up" your email addresses so they don't land in spam, and send automated follow-up sequences.
  • •Pricing: Around $37–$39/month. (Cold email doesn't really have viable free tiers).

What to Avoid

  • •Mailchimp: It used to be the default for bootstrappers, but it has become bloated, the UI is clunky, and their pricing scales aggressively once you pass their (now severely limited) free tier.
  • •HubSpot: An incredible tool, but total overkill for a solo founder. Their "startup" discounts look great in year one, but the renewal prices in year two or three will destroy a bootstrapped budget.

Crucial Advice for US Founders in 2024

Because you are in the US, you are sending emails to a lot of Gmail and Yahoo accounts. In early 2024, Google and Yahoo rolled out strict new deliverability rules.

No matter which platform you choose, you must do the following, or your emails will go straight to the Spam folder:

  • 1.Never send from a @gmail.com address. Buy a custom domain (e.g., founder@yourstartup.com).
  • 2.Authenticate your domain. Your chosen email platform will give you DNS records to copy and paste into your domain registrar (GoDaddy, Namecheap, Cloudflare, etc.). You must set up SPF, DKIM, and DMARC. It sounds technical, but every platform has a step-by-step guide on how to do it.

Summary:
Go with MailerLite for general marketing/SaaS, Loops if you are a developer building a software product, or Beehiiv if you are building an audience via a newsletter.

Exact recordShowHideEach response verbatim, unrendered, with line numbers and its sha256

Before baseline

2026-09-27 permalink

Scored
answered
Received
2026-09-27 09:24:02 UTC
Run
20260927T090007Z-7adb14
Served by
Google · HTTP 200 · finish stop
Size
4,949 characters · 2,251 tokens out incl. hidden reasoning · 20.0 s
Extracted picks, in order · confidence high
  1. MailerLite
  2. Loops
  3. ConvertKit
  4. Beehiiv
  5. Brevo

Highlighted: the names the extractor took as picks, where they appear verbatim (5 of 5).

As a solo, bootstrapped founder in the US, your primary constraints are **budget (cash) and time**. You need a platform with a generous free tier, an intuitive interface so you don’t waste hours learning it, and predictable pricing as you scale.
The best platform for you depends heavily on **what type of business you are building**. Here are the top recommendations categorized by business model:
---
### 1. The Best All-Rounder: MailerLite
**Best for:** E-commerce, physical products, agencies, and general small businesses.
MailerLite is widely considered the best alternative to Mailchimp for bootstrappers. It is incredibly easy to use, has a clean interface, and offers outstanding value for money.
* **Why it’s great for bootstrappers:** It includes a drag-and-drop website/landing page builder. If you don't have a website yet, you can build one for free on MailerLite to start collecting leads.
* **The Free Tier:** Up to 1,000 subscribers and 12,000 emails per month. Includes automations and landing pages.
* **Scaling Cost:** Very cheap. Paid plans start at just $9–$15/month.
### 2. Best for SaaS & Indie Hackers: Loops (Loops.so)
**Best for:** Software-as-a-Service (SaaS), web apps, and tech-heavy startups.
Loops was built specifically for modern software companies. It is wildly popular right now among US solo tech founders.
* **Why it’s great for bootstrappers:** It combines marketing emails (newsletters, product updates) and transactional emails (password resets, welcome emails) in one platform. You don't have to pay for two separate services like Resend and Mailchimp.
* **The Free Tier:** Up to 1,000 contacts and 2,000 sends per month.
* **Scaling Cost:** Starts at $49/month (a bit higher entry for paid, but replaces the need for a separate transactional email provider).
### 3. Best for Creators & Info-Products: ConvertKit (Now rebranding to "Kit")
**Best for:** Coaches, consultants, course creators, and personal brands.
ConvertKit is built specifically to help creators monetize their audiences. It has powerful, visual automation workflows (e.g., "If they click this link, tag them as interested in Product A and send them this email sequence").
* **Why it’s great for bootstrappers:** You can sell digital products, subscriptions, and tip jars directly through ConvertKit using Stripe. It also has a "Creator Network" that helps you grow your list by getting recommended by other founders.
* **The Free Tier:** Up to 10,000 subscribers (though automations are locked on the free tier).
* **Scaling Cost:** Starts at $29/month to unlock automations.
### 4. Best for "The Email is the Product": Beehiiv
**Best for:** Paid newsletters, media companies, and content-first startups.
If your core business model involves writing a newsletter and eventually selling ads (sponsorships) or paid subscriptions, Beehiiv is the undisputed king right now.
* **Why it’s great for bootstrappers:** It has a built-in referral program, an ad network you can join to monetize quickly, and excellent SEO capabilities for the web versions of your emails.
* **The Free Tier:** Up to 2,500 subscribers (very generous) with no sending limits.
* **Scaling Cost:** Flat rate pricing starting at $39/month (they don't penalize you for growing your list quickly).
### 5. Best for Massive Lists on a Budget: Brevo (formerly Sendinblue)
**Best for:** B2B founders with massive scraped/purchased lists, or apps that send very infrequent emails.
* **Why it’s great for bootstrappers:** Brevo charges **by the email sent**, not by the number of contacts you have. If you have a list of 20,000 people but only email them once a month, every other platform will charge you $150+ per month. Brevo will do it for a fraction of that.
* **The Free Tier:** Unlimited contacts, but you can only send 300 emails a day.
* **Scaling Cost:** Starts at $25/month for 20,000 emails (with unlimited contacts).
---
### ⚠️ The One to Avoid: Mailchimp
While it's the most famous name, Mailchimp has become increasingly expensive and complex over the years. They count unsubscribed contacts against your billing limits, their automations are clunky compared to newer tools, and their pricing ramps up aggressively as you grow.
### Summary Recommendation:
1. If you are building **SaaS**, use **Loops**.
2. If you are selling **Digital Products/Courses**, use **ConvertKit**.
3. If you are building a **Newsletter**, use **Beehiiv**.
4. For literally **anything else**, use **MailerLite**.
**One Final Bootstrapper Tip:** Since you are in the US, remember that recent changes by Google and Yahoo require bulk senders to have a custom domain with DMARC, DKIM, and SPF records set up. **Do not send marketing emails from a @gmail.com address.** Buy a $12 domain, set up Google Workspace or Zoho (free), and authenticate your domain with whichever platform you choose above to ensure your emails actually reach the inbox.

End of response · 52 lines · 4,949 characters · sha256 a4f48ae41fd492064204e5e6b4ec7ba05475d0010e373a5416ca203341e801a3

After this run

2026-09-28 permalink

Scored
answered
Received
2026-09-28 09:23:32 UTC
Run
20260928T090007Z-07d4be
Served by
Google · HTTP 200 · finish stop
Size
4,479 characters · 2,282 tokens out incl. hidden reasoning · 20.1 s
Extracted picks, in order · confidence medium
  1. MailerLite(https://www.mailerlite.com/)
  2. Loops.so(https://loops.so/)
  3. Beehiiv(https://www.beehiiv.com/)
  4. Substack(https://substack.com/)

Highlighted: the names the extractor took as picks, where they appear verbatim (0 of 4).

As a solo, bootstrapped founder, your most precious resources are **cash** and **time**. You need an email platform that has a generous free tier, an intuitive interface that doesn't require a tutorial to use, and the ability to scale without suddenly costing you hundreds of dollars a month.
To give you the best recommendation, you have to categorize *how* you plan to use email. Here is the breakdown of the best platforms based on your specific business model.
---
### 1. If you are building a SaaS or E-commerce product
*You need: Automated onboarding sequences, waitlists, user segmentation, and drip campaigns.*
* **Top Recommendation: [MailerLite](https://www.mailerlite.com/)**
* **Why it’s great:** It has arguably the best free tier on the market for traditional email marketing. The interface is incredibly clean, and their visual automation builder (for setting up drip campaigns) is easy to use.
* **Pricing:** Free up to 1,000 subscribers and 12,000 emails/month. Paid plans start at just $9/month.
* **The Indie Hacker Alternative: [Loops.so](https://loops.so/)**
* **Why it’s great:** Built specifically for modern SaaS companies and highly popular among solo founders right now. It merges marketing emails (newsletters, product updates) with transactional emails (password resets, receipt emails) beautifully.
* **Pricing:** Free up to 1,000 contacts.
### 2. If you are building an Audience / Media Business
*You need: To send a regular newsletter, grow a subscriber base, and maybe eventually charge for premium content or sponsorships.*
* **Top Recommendation: [Beehiiv](https://www.beehiiv.com/)**
* **Why it’s great:** Built by the early team behind Morning Brew, it has incredible built-in growth tools (referral programs, recommendation networks). It also lets you build a customized web presence.
* **Pricing:** **Free up to 2,500 subscribers** (this is massive for a bootstrapper). They don't take a cut of your revenue if you launch a paid tier; they just charge a flat monthly rate once you upgrade.
* **The "Zero Friction" Alternative: [Substack](https://substack.com/)**
* **Why it’s great:** You can set it up in 5 minutes. It is completely free forever for sending emails, no matter how big your list gets.
* **The Catch:** If you ever decide to charge for a paid version of your newsletter, Substack takes a permanent 10% cut of your revenue.
### 3. If you are doing B2B Cold Outreach (Sales)
*Warning: Do not use traditional tools like MailerLite, Mailchimp, or ConvertKit to send cold emails to people who didn't opt-in. They will ban your account immediately.*
* **Top Recommendation: [Instantly.ai](https://instantly.ai/) or [Smartlead.ai](https://www.smartlead.ai/)**
* **Why they are great:** These are designed specifically for cold email. They allow you to connect multiple Google Workspace/Microsoft inboxes, "warm up" your email addresses so they don't land in spam, and send automated follow-up sequences.
* **Pricing:** Around $37–$39/month. (Cold email doesn't really have viable free tiers).
---
### What to Avoid
* **Mailchimp:** It used to be the default for bootstrappers, but it has become bloated, the UI is clunky, and their pricing scales aggressively once you pass their (now severely limited) free tier.
* **HubSpot:** An incredible tool, but total overkill for a solo founder. Their "startup" discounts look great in year one, but the renewal prices in year two or three will destroy a bootstrapped budget.
### Crucial Advice for US Founders in 2024
Because you are in the US, you are sending emails to a lot of Gmail and Yahoo accounts. In early 2024, Google and Yahoo rolled out **strict new deliverability rules**.
No matter which platform you choose, you *must* do the following, or your emails will go straight to the Spam folder:
1. **Never send from a `@gmail.com` address.** Buy a custom domain (e.g., `founder@yourstartup.com`).
2. **Authenticate your domain.** Your chosen email platform will give you DNS records to copy and paste into your domain registrar (GoDaddy, Namecheap, Cloudflare, etc.). You must set up **SPF, DKIM, and DMARC**. It sounds technical, but every platform has a step-by-step guide on how to do it.
**Summary:**
Go with **MailerLite** for general marketing/SaaS, **Loops** if you are a developer building a software product, or **Beehiiv** if you are building an audience via a newsletter.

End of response · 48 lines · 4,479 characters · sha256 811ea51d450aec21badeec1a40902f7420a54d10260cf48efc55dd01145d2ffd

Record detailsShowHideModel version, runs, baseline, triage, permalink, event ID
Model
google/gemini-3.1-pro-preview
pinned google/gemini-3.1-pro-preview-20260219; alias resolved to google/gemini-3.1-pro-preview-20260219 at 2026-09-28 09:00:07 UTC (matches the pin)
Prompt
Question 32: P28 (recommendation)
Why this question
Question 33 asks the same for a large company; the right tool should change with the size of the business.
Change
1 added, 2 dropped
Baseline
6 prior days with data; 1 matched the baseline value (2026-09-27)
Responses
before 2026-09-27 09:24:02 UTC, run 20260927T090007Z-7adb14; after 2026-09-28 09:23:32 UTC, run 20260928T090007Z-07d4be
Detected
2026-09-28 · run 20260928T090007Z-07d4be, started 2026-09-28 09:00:07 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-09-28/P28/google/gemini-3.1-pro-preview/pick_change/picks/
Event ID
2026-09-28:P28:google/gemini-3.1-pro-preview:pick_change:picks

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