HubSpot Email vs Substack
Which brand does AI recommend more? Head-to-head comparison across all engines.
Wondering whether to choose HubSpot Email or Substack? We compared how ChatGPT, Gemini, Claude, and DeepSeek mention each brand. Substack leads with an AI score of 99 vs 27 for HubSpot Email. See the full breakdown below.
27
HubSpot Email
hubspot.com
vs
99
Substack
substack.com
| Engine | HubSpot Email | Substack | Winner |
|---|---|---|---|
| ChatGPT | 100% | 60% | HubSpot Email |
| Claude | 100% | 100% | Tie |
| DeepSeek | 100% | 100% | Tie |
| Gemini | 0% | 100% | Substack |
| Mistral | 0% | 100% | Substack |
| Perplexity | 0% | 36% | Substack |
HubSpot Email
✅ Detailed analytics · High deliverability rates · Strong automation workflows
⚠️ Template customization can be restrictive · Limited free tier
Substack
✅ Simplest way to start a paid newsletter — zero setup friction · Built-in payment processing and subscriber management · Network effects from Substack's recommendation engine and app
⚠️ Takes 10% of paid subscription revenue — expensive at scale · Limited customization and branding options · No marketing automation or advanced segmentation