2
AI tools in use at Stack AI
Stack AI uses 2 AI tools: Reducto (Document & Process Intelligence) and Weaviate (Vector Databases). 2 are confirmed by a published story, quote or press release; none is listed on the vendor's own pages.Latest check Oct 8, 2026: 2 of 2 tools checked, from 3 public sources.
- Industry
- Artificial Intelligence
- Website
- stack.ai
- AI tools in use
- 2Median for the 117 Artificial Intelligence companies on usedby: 1
- Latest check
- October 8, 20262 of 2 tools checked so far
Every AI tool at Stack AI
2 lines, each linked to the public page behind it. Open a row to see the dated capture.
| Tool | Team | First public proof | Proof | Source |
|---|---|---|---|---|
 Reducto | Document & Process Intelligence | — | reducto.ai | |
 Weaviate | Vector Databases | On or before Aug 2025 | weaviate.io |
“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 Stack AI's own words
Published results, each linked to its dated source. We quote, we do not score.
When we discovered Reducto, we found it was one of the best in the market – the most flexible, easiest, and straightforward to work with complex data.Stack AI compared to other Artificial Intelligence companies
Stack AI uses 2 AI tools. The median among the 117 Artificial Intelligence companies on usedby is 1. 66 of its 116 peers use fewer.
These counts cover public proof only. A company can use tools that no public page names.
AI tools per company
117 Artificial Intelligence companies on usedby, by number of AI tools
- 66 companies with 1 tool
- 17 companies with 2 tools
- 10 companies with 3 tools
- 5 companies with 4 tools
- 1 company with 5 tools
- 5 companies with 6 tools
- 1 company with 7 tools
- 12 companies with 8 tools or more
What its peers use that Stack AI does not
Questions about AI at Stack AI
What AI tools does Stack AI use?
Stack AI uses 2 AI tools: Reducto and Weaviate. 2 are confirmed by a published story, quote or press release, and none is listed on the vendor's own pages.
Does Stack AI use Assembly AI?
usedby has not found a public page showing that Stack AI uses Assembly AI. Assembly AI is the most used AI tool among the 117 Artificial Intelligence companies on usedby: 12 of them use it. See who uses Assembly AI.
How does Stack AI compare to other Artificial Intelligence companies?
Stack AI uses 2 AI tools. The median among the 117 Artificial Intelligence companies on usedby is 1, and 66 of its 116 peers use fewer tools. These counts cover public proof only.
How does usedby know which AI tools Stack AI uses?
Each tool is linked to a public page that names Stack AI: 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 Stack AI, and at least 14 days after it was last seen. A tool with a published case study or quote is never removed automatically.