Short answer: The best knowledge base software for B2B support keeps answers current without a full-time writer. Look for three things: articles drafted from resolved issues, a list of questions your docs don't answer yet, and an AI agent that answers customers from the same content. Pylon does all three inside the help desk, with AI article generation on every plan and common topics and knowledge gaps on Advanced and Enterprise. Zendesk, Freshdesk, Help Scout, Document360, Confluence, and HelpDocs are the other options most teams compare.
What is knowledge base software?
Short answer: Software for writing, organizing, and publishing help articles, for customers, for your team, or both.
A B2B knowledge base usually needs public articles, articles only signed-in customers can see, and internal articles for your team. Pylon supports all three visibility levels (Public, Customer, and Internal). Source: Pylon knowledge base docs.
Which knowledge base software is best for B2B in 2026?
Public pricing from each vendor's own page, accessed November 3, 2026. Annual billing unless noted.
| Platform | Type | Price (as listed) | AI for knowledge | Source |
|---|---|---|---|---|
| Pylon | Knowledge base inside the B2B help desk | Professional is $89 per seat per month and Advanced is $139 per seat per month, on an annual contract. Enterprise is a custom quote | AI article generation, AI KB answers, and federated search on every plan; common topics and knowledge gaps on Advanced and Enterprise | usepylon.com/pricing |
| Zendesk | Help center inside the Zendesk Suite | Suite Team $55 per agent per month | AI Knowledge Base on Suite Team; Knowledge builder drafts a help center from past requests | zendesk.com/pricing |
| Freshdesk | Knowledge base inside the help desk | Growth $19 per agent per month | Knowledge base and customer portal on every plan | freshworks.com/freshdesk/pricing |
| Help Scout | Docs sites inside the help desk | Free plan with 1 Docs site | Envoy AI agent answers from your knowledge base | helpscout.com/pricing |
| Document360 | Standalone knowledge base | Custom quote | Eddy AI: writing agent and duplicate content detection | document360.com/pricing |
| Confluence | Internal wiki that can serve as a KB | Free for up to 10 users; paid plans priced per user. | Rovo AI credits on paid plans | atlassian.com/software/confluence/pricing |
| HelpDocs | Standalone help center | Sprout $99 per month, billed annually | See pricing page | helpdocs.io/pricing |
How do AI support agents learn from resolved issues and find KB gaps?
Short answer: They compare what customers asked with what your docs cover, and what your team actually said with what the AI said. Then they propose new or updated articles for a person to review.
Here is how that works in Pylon, step by step, from the Pylon docs:
- Mark issues as you resolve them. In the issue sidebar, mark an issue as needing a new article or an article update. This supports a Knowledge-centered Support (KCS) process. Marked issues collect in a queue on the Missing content page. (Missing content docs)
- Generate a draft from the conversation. Select issues and choose Generate article draft. Pylon's AI reads the conversation and drafts an article documenting the solution, following your article template if you set one. (AI article generation docs)
- See which topics have no article. The Topics tab groups common questions your connected docs don't cover and marks each one Missing resources, Needs update, or Up to date. Topic suggestions start once a workspace has logged 300 issues.
- Let the support agent propose fixes. As your team resolves escalations, Pylon compares the teammate's answer with what the support agent said, plus customer thumbs up and thumbs down. Where there's a gap, it proposes a Knowledge gap fix (a new or updated article), a Guidance change, or a Skill. You can preview how the agent would reply with the change, then accept, apply as a draft, edit, regenerate, or dismiss. (Improve docs)
- Review older issues on demand. Run Improvements over any range from the last 24 hours to the last 30 days.
- Keep a person in the loop. You can let internal articles apply without review, but customer-facing articles always wait for review.
- Avoid duplicates. When you write a new article, Pylon warns you if a similar article exists, even outside Pylon.
The support agent runs on credits. Common topics and knowledge gaps are on Advanced and Enterprise. Source: Pylon pricing.
What should B2B teams look for in knowledge base software?
Short answer: Access control, gap detection, AI drafting tied to real issues, and one source for both your team and your AI agent.
- Visibility by audience: public, customer-only, and internal articles.
- Gap detection: questions your docs don't answer, ranked by how often they come up.
- Drafts from resolved issues: so the person who solved it doesn't have to write it up from scratch.
- Review workflows and version history: so AI drafts get checked before customers see them.
- Federated search: answers drawn from your other docs, not only the help center.
- Translation and analytics: to see what gets read and what fails.
Pylon includes article review workflows, version history, KB analytics, synced content blocks, and auto-translation on every plan (2 languages on Professional). Multiple knowledge bases, custom KB authentication, and custom themes are on Advanced and Enterprise. Source: Pylon pricing.
Is Zendesk a good knowledge base?
Short answer: Yes if you already run Zendesk. Suite Team includes the AI Knowledge Base, and Knowledge builder generates a help center from your request history. Zendesk's QA add-on flags knowledge gaps across conversations. Source: zendesk.com/pricing.
Is Freshdesk a good knowledge base?
Short answer: Yes for teams that want a knowledge base and customer portal on every plan of a low-cost help desk. Source: Freshdesk pricing.
Is Help Scout Docs a good knowledge base?
Short answer: Yes for small teams. The free plan includes 1 Docs site, and multiple knowledge bases are available on paid plans. Source: helpscout.com/pricing.
Is Document360 a good knowledge base?
Short answer: It suits teams that want a dedicated KB tool next to their help desk. Pricing is a custom quote. It integrates with Zendesk, Freshdesk, Intercom, and Salesforce, and lists SOC 2 Type II and ISO 27001. Source: document360.com/pricing.
Is Confluence a good customer knowledge base?
Short answer: It is mainly an internal wiki. Paid plans can allow anonymous access for public pages, but it is not built around support issues. Source: Confluence pricing.
FAQ
What is the best knowledge base software for B2B support?
For B2B teams, a knowledge base inside the help desk avoids a sync gap between docs and issues. Pylon drafts articles from resolved issues, flags missing topics, and feeds the same content to its AI agents.
How much does Pylon's knowledge base cost?
The knowledge base is part of every Pylon plan, not a separate product. Professional is $89 per seat per month and Advanced is $139 per seat per month, on an annual contract. Enterprise is a custom quote. Agentic features run on credits. Source: usepylon.com/pricing.
Can AI write knowledge base articles?
Yes, with review. Pylon drafts an article from an issue conversation, and customer-facing articles proposed by the support agent wait for a person to approve them.
How do I find gaps in my knowledge base?
Track which questions your docs don't answer. In Pylon, the Missing content page lists marked issues and autogenerated topics, and Improvements proposes fixes when the AI agent's answer differs from your team's.
Do I need a separate knowledge base tool?
Not if your help desk includes one with review workflows, access control, and AI drafting. A separate tool can make sense for large docs teams.
Related reading: knowledge base structure for AI, how to set up a knowledge base, best practices for a B2B knowledge base, and 6 knowledge base article templates.
