ShelfNext-generation knowledge and governance platform for accurate GenAI answers.
vs
TettraAI powered knowledge base that answers questions for you in Slack
Comparison · Knowledge Management · weekly run Nov 3
Shelf vs Tettra
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Tettra is the stronger AI pick in Knowledge Management: it has a visibility score of 7.2 versus 1.5 for Shelf, and ranks ahead in 50% of the answers that name both.
Choose Shelf if…
- AI answers describe it more positively (67% vs 27% positive)
- You need SOC 2 Type II or GDPR or CCPA coverage
- You prefer a larger, established vendor (51–200 employees)
- Recommended by analysts for knowledge management
Choose Tettra if…
- You want the brand AI engines rank higher (7.2 vs 1.5)
- Good option for internal company knowledge management
- Simple internal wiki with low administration
- Among highest-rated for willingness to recommend
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Shelf | Tettra |
|---|---|---|
| Visibility score | 1.5% | 7.2% |
| Change vs last week | New | New |
| Rank in Knowledge Management | #38 | #15 |
| Share of voice | 0.7% | 1.9% |
| Mentions this run | 4 | 11 |
| Positive in AI answers | 67% | 27% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Shelf 0pp · Tettra 0pp over 0 weekly runs.
Engine by engine
Tettra leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
ShelfTettra
Head to head in AI answers
2 engine answers name both brands
1Shelf ranked higher
1Tettra ranked higher
| Prompt | Engine | Shelf | Tettra |
|---|---|---|---|
| Which Knowledge Management vendors do analysts recommend? | ChatGPT | #13 | #15 |
| Official website of the top knowledge management tool vendors | ChatGPT | #15 | #11 |
Features, pricing & fit
| Dimension | Shelf | Tettra |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | $8 per seat / mo |
| Free plan | — | No · 30-day trial |
| Deployment | Cloud-hosted on AWS, with data centers in the US, Canada and EU | Cloud only; self-hosting not offered |
| Compliance | SOC 2 Type II, GDPR, CCPA | — |
| Support | Contact form on the website, Developer portal with API specs, cookbooks and SDKs | Help center, Live chat, Priority support on Enterprise plan |
| Founded | — | 2015 |
| Headquarters | New York City, NY, United States | Boston, MA, United States |
| Employees | 51–200 | 1–10 |
| Funding | Series B · $61M raised | Seed |
| Best for | Business and knowledge management teams that need governed enterprise knowledge, and technical teams that want a data layer under their own AI applications. | Small and mid-market businesses of 10 to 500 employees that rely heavily on Slack |
Plans side by side
Shelf
Pricing not available.
Tettra
Scaling$8user/month, 10 user minimum
EnterpriseCustomcustom pricing, contact sales
Pros and cons
Themes from the AI answers that mention each brand
Shelf
- Recommended by analysts for knowledge management
- Suited to customer-service and contact-center knowledge management
- Recommended for vendor landscape and competitive intelligence databases
Tettra
- Good option for internal company knowledge management
- Simple internal wiki with low administration
- Among highest-rated for willingness to recommend
- Offers a 30-day free trial
- Discount of 20%
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Shelf vs Tettra”, https://slateindex.ai/compare/shelf-vs-tettra, data of Nov 3, 2026. Licence: CC BY 4.0.