ChatGPT40 customers
Used by 40 companies on usedby. 1 also uses Hebbia.
Latest capture across its sources: Oct 8, 2026.
2 of the 14 Hebbia customers on usedby also use another tool on this list. The tools most often used by the same companies are ChatGPT (1 shared, 40 customers in all) and Perplexity (1 shared, 26 customers in all).Latest check Oct 8, 2026: 352 of 466 public lines checked. Customer counts include every proof level, job-post signals included. Shared customers are counted on confirmed or observed lines on both tools.
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Hebbia customers also use another tool on this list
ChatGPT shares the most companies with Hebbia: 1 company uses both.
Ranked by shared customers
Tools of the same or a competing category, from another vendor, used by at least one company that also uses Hebbia. A shared customer has a confirmed or observed line on both tools.
| # | Alternative | Shared with Hebbia | Customers | Compare |
|---|---|---|---|---|
| 1 | ChatGPT | 1 | 40 | |
| 2 |  PerplexityMostly Fintech & Payments (5) | 1 | 26 |
Perplexity26 customers
Used by 26 companies on usedby, 5 of them in Fintech & Payments. 1 also uses Hebbia.
Source: perplexity.ai, latest capture Oct 4, 2026.
Other AI Search & Research tools on usedby
Same category, with public customers, but no company named with Hebbia yet.
Switch signals
A company that left one vendor's page and appeared on another's.
No switch publishedA switch needs a departure from one vendor's page, seen on two checks in a row, and a dated arrival on another. usedby does not publish departures yet, so no switch shows here.
By industry
Which of these tools the companies on usedby use, by industry. Each row counts the companies of that industry on usedby that use at least one of these tools.
| Industry | Most used | Next | Companies |
|---|---|---|---|
| Fintech & Payments |  Glean23% | Perplexity19% | 26 companies |
| IT Services & System Integration |  Cohere50% |  Claude17% | 18 companies |
| DevTools & Infrastructure | Claude40% | ChatGPT20% | 15 companies |
| Artificial Intelligence | Claude36% |  Dust21% | 14 companies |
| Data & Analytics | Glean38% | Perplexity23% | 13 companies |
Read the first row as: among the 26 Fintech & Payments companies on usedby that use one of these tools, 23% use Glean. Shares can add up to more than 100% because some companies use two tools.
Questions about Hebbia alternatives
Which tool shares the most customers with Hebbia?
ChatGPT: 1 company uses both on usedby. ChatGPT has 40 customers in all. See who uses ChatGPT.
Do Hebbia customers use other tools too?
2 of the 14 Hebbia customers on usedby also use another tool on this list. ChatGPT shares the most: 1.
Which of Hebbia and its alternatives do Fintech & Payments companies on usedby use?
Among the 26 Fintech & Payments companies on usedby that use one of these tools, 23% use Glean. Perplexity comes next, with 19%.
Which of Hebbia and its alternatives do IT Services & System Integration companies on usedby use?
Among the 18 IT Services & System Integration companies on usedby that use one of these tools, 50% use Cohere. Claude comes next, with 17%.
How does usedby rank Hebbia alternatives?
Only tools of the same or a competing category, from another vendor, count. They are ranked by shared customers: companies with a confirmed or observed line on both tools, from public pages, most with a dated capture. Tools with no shared customer are listed apart. Customer counts include every proof level, job-post signals included.