5
AI tools in use at Substack
Substack uses 5 AI tools: Decagon and Assembled (Customer Service Automation), Modal (LLM Inference), Greptile (Code Quality & Security), and Notion (Project & Workspace Mgmt). 2 are confirmed by a published story, quote or press release; 3 are listed on the vendor's own pages.Latest check Oct 8, 2026: 5 of 5 tools checked, from 8 public sources.
- Industry
- Media & Publishing
- Website
- substack.com
- AI tools in use
- 5Median for the 66 Media & Publishing companies on usedby: 1
- Latest check
- October 8, 20265 of 5 tools checked so far
Every AI tool at Substack
5 lines, each linked to the public page behind it. Open a row to see the dated capture.
| Tool | Team | First public proof | Proof | Source |
|---|---|---|---|---|
 Decagon | Customer Service Automation | — | decagon.ai | |
 Modal | LLM Inference | — | modal.com | |
 Assembled | Customer Service Automation | — | assembled.com | |
 Greptile | Code Quality & Security | — | greptile.com | |
 Notion | Project & Workspace Mgmt | On or before Oct 2024 | notion.com |
“First public proof” is the earliest public page we have dated: a mention (“on or before”), a job post or a start the source states. Our capture dates are not adoption dates.
In Substack's own words
Published results, each linked to its dated source. We quote, we do not score.
With Decagon’s AI agents, we’ve shortened our time-to-resolution rate, raised and maintained a high CSAT and deflection rate, and are proactively engaging our most valuable readers and publishers.Substack compared to other Media & Publishing companies
Substack uses 5 AI tools. The median among the 66 Media & Publishing companies on usedby is 1. 58 of its 65 peers use fewer.
These counts cover public proof only. A company can use tools that no public page names.
AI tools per company
66 Media & Publishing companies on usedby, by number of AI tools
- 36 companies with 1 tool
- 12 companies with 2 tools
- 5 companies with 3 tools
- 5 companies with 4 tools
- 4 companies with 5 tools
- 0 companies with 6 tools
- 0 companies with 7 tools
- 4 companies with 8 tools or more
What its peers use that Substack does not
Questions about AI at Substack
What AI tools does Substack use?
Substack uses 5 AI tools: Decagon, Modal, Assembled, Greptile, and Notion. 2 are confirmed by a published story, quote or press release, and 3 are listed on the vendor's own pages.
Does Substack use ElevenLabs?
usedby has not found a public page showing that Substack uses ElevenLabs. ElevenLabs is the most used AI tool among the 66 Media & Publishing companies on usedby: 8 of them use it. See who uses ElevenLabs.
How does Substack compare to other Media & Publishing companies?
Substack uses 5 AI tools. The median among the 66 Media & Publishing companies on usedby is 1, and 58 of its 65 peers use fewer tools. These counts cover public proof only.
How does usedby know which AI tools Substack uses?
Each tool is linked to a public page that names Substack: a vendor's customer page, a published case study, a press release or a job post. We save each page with a dated capture and check it again on each run. A tool leaves the list only after three checks in a row that no longer find Substack, and at least 14 days after it was last seen. A tool with a published case study or quote is never removed automatically.