4.8
on G2
Slab
Tettra
Slab and Tettra are both popular internal knowledge base tools, but they take different approaches. Slab bets on radical simplicity and affordability, while Tettra adds AI-powered Q&A via Slack. Neither supports external documentation delivery, video conversion, or multi-tenant portals — key gaps for growing teams.
Feature Matrix
A comprehensive side-by-side comparison of core features, AI capabilities, enterprise readiness, and integrations between Slab and Tettra.
| Feature |
Slab
|
Tettra
|
|---|---|---|
| Free Plan | Up to 10 users | Up to 10 users |
| Starting Paid Price | $6.67/user/month | $4/user/month |
| AI Content Generation | Kai AI assistant (Q&A) | |
| AI Chatbot / Q&A | Kai AI (Slack-based) | |
| Slack Integration | Deep integration with AI Q&A | |
| Real-Time Collaboration | ||
| Version Control | 90 days (Free), unlimited (Startup+) | Basic page history |
| Content Verification / Freshness | ||
| Full-Text Search | Fast, notable strength | |
| Analytics & Reporting | Startup+ only | Scaling+ only |
| API Access | Scaling+ only | |
| SSO (SAML) | Business plan only | Professional plan only |
| Custom Branding | Professional plan only | |
| Custom Domain | ||
| Multi-Tenant Portals | ||
| External / Customer-Facing Docs | ||
| Video to Documentation | ||
| Multi-Language Support | ||
| Auto-Translation | ||
| Embeddable Widget | ||
| SOC 2 Compliance | ||
| GDPR Compliance | ||
| Role-Based Access Control | ||
| Content Reuse / Snippets | ||
| Built-in LMS / Certifications |
Data as of February 2026. Features based on publicly available information and vendor documentation.
Strengths & Weaknesses
Deep Dive
Slab offers a clean, distraction-free editor that prioritizes simplicity above all else. It supports Markdown, inline comments, and real-time co-editing with almost zero learning curve. Tettra provides a comparable editing experience with the added benefit of Google Docs import and Notion migration support. Both tools are adequate for text-based documentation, but neither supports rich media like video, nor do they offer content reuse blocks, reusable snippets, or structured templates — meaning teams creating complex, interconnected documentation will quickly feel constrained by both platforms.
This is where Slab and Tettra diverge most sharply. Slab has zero AI features — no AI writing assistance, no smart search, no chatbot — which is a significant competitive disadvantage in 2026. Tettra's Kai AI assistant allows team members to ask questions in Slack and receive answers sourced from the knowledge base, which is genuinely useful for reducing repetitive questions. However, Kai is limited to Slack-based Q&A; it is not an agentic system, does not support multi-channel deployment, and cannot auto-generate or maintain content. Teams expecting serious AI-powered documentation workflows will find both tools fall short.
Neither Slab nor Tettra has achieved SOC 2 Type II certification, which is a notable gap for enterprise buyers in regulated industries. Both offer GDPR compliance and role-based access control. SSO (SAML) is available on both platforms but locked behind their most expensive tiers — Slab's Business plan (custom pricing) and Tettra's Professional plan ($12/user/month). Tettra has a slight edge with API access on its Scaling tier and a 30-day free trial for evaluation. Neither tool offers audit logs, data residency options, or air-gap deployment capabilities, limiting their appeal for compliance-heavy organizations.
Both Slab and Tettra are designed exclusively for internal team use. Neither supports external customer-facing documentation, custom domain delivery, multi-tenant portals, or white-label branding sufficient for client delivery. Slab offers no custom branding at all; Tettra adds it only on its $12/user/month Professional plan. If your team needs to deliver documentation to clients, embed help content in a product, or maintain separate branded portals for different audiences, both tools are categorically unsuitable. This is a fundamental architectural limitation, not a missing feature that a future update could easily address.
Our Recommendation
Slab and Tettra are both capable, affordable internal wikis that serve small-to-mid-size teams well — but they occupy slightly different niches. Slab wins on simplicity and price, making it ideal for teams that want the lowest-friction internal knowledge base possible. Tettra wins on AI-assisted search via Slack and content freshness tooling, making it better for teams that live in Slack and need their KB to actively surface answers. Neither tool is suitable for external documentation delivery, video-based knowledge creation, multilingual teams, or enterprise multi-tenant use cases.
Choose Slab if you need...
Choose Tettra if you need...
Choose Docsie if you need...
Winner: Docsie
Both Slab and Tettra are internal-only tools with no video conversion, no external delivery, no multi-tenant portals, and no multi-language support. Docsie addresses every gap both tools share — converting any video into structured docs, delivering through unlimited branded client portals, supporting 100+ languages, providing a built-in LMS with certifications, and offering enterprise-grade compliance (SOC 2 Type II) with autonomous agents for touchless documentation workflows. For teams that have outgrown a simple internal wiki, Docsie is the natural next step.
Common Questions
Q: Does Slab have AI features like Tettra's Kai assistant?
A: No. Slab has zero AI features as of 2026 — no AI writing assistance, no smart search, and no chatbot. Tettra's Kai AI assistant is a meaningful differentiator that lets team members ask questions in Slack and receive answers sourced from the knowledge base. If AI-assisted knowledge retrieval is a priority, Tettra is the stronger choice between the two.
Q: Which tool has better search — Slab or Tettra?
A: Slab's full-text search is widely recognized as one of its standout strengths, offering fast and clean results across all content. Tettra's search is augmented by Kai AI for Slack-based Q&A, which adds conversational retrieval on top of standard search. For pure search speed and simplicity inside the platform, Slab leads; for AI-assisted question answering via Slack, Tettra has the advantage.
Q: Can either Slab or Tettra deliver documentation to external customers?
A: No. Both Slab and Tettra are designed exclusively for internal team knowledge sharing. Neither supports custom domains, multi-tenant portals, white-label branding for clients, or customer-facing documentation portals. If you need to publish documentation externally or deliver it to multiple clients, you will need a different platform entirely.
Q: Which tool is more affordable for a team of 25 people?
A: Tettra's Basic plan at $4/user/month makes it the cheaper option for a 25-person team ($100/month vs. Slab's $167/month on the Startup plan). However, Tettra's Basic plan includes the Kai AI assistant, while Slab's Startup plan focuses on unlimited version history and advanced analytics. The right choice depends on whether AI Q&A or version history matters more to your team.
Q: Is there a better alternative to both Slab and Tettra?
A: Yes — Docsie addresses the core limitations both tools share. Slab and Tettra are internal-only wikis with no video conversion, no external delivery, no multi-tenant portals, and no multi-language support. Docsie converts training videos and PDFs into structured documentation automatically, delivers through unlimited branded client portals, supports 100+ languages, includes a built-in LMS with certifications, and offers SOC 2 Type II compliance. For teams that need documentation to do more than store internal notes, Docsie provides a complete CONVERT → MANAGE → DELIVER → LEARN → AUTOMATE → MONITOR workflow in one platform.
Q: Which tool is better for onboarding new employees?
A: Tettra has a slight edge for employee onboarding specifically, thanks to its Kai AI assistant that answers new hire questions directly in Slack, its content verification system that keeps onboarding docs current, and its clean import path from Google Docs. Slab is equally simple but lacks the proactive Q&A layer that makes Tettra particularly effective during the first few weeks of a new employee's tenure.
Both Slab and Tettra are solid internal wikis — but neither converts video to documentation, delivers to external clients, supports 100+ languages, or offers multi-tenant branded portals. Docsie does all of this and adds a built-in LMS, autonomous agents, and SOC 2 Type II compliance. See why teams upgrading from internal wikis choose Docsie.
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