whats-best.ai

Knowledge Base & Wiki · head-to-head

Nuclino vs Slite

As of 1 Nov 2026, the panel rates Nuclino 2.5/5 and Slite 3/5 in Knowledge Base & Wiki. Weighted by what each judge cares about, 0 of the 6 judges pick Nuclino and 6 pick Slite. Nuclino scores higher on 1 of 7 criteria (European sovereignty). Slite scores higher on 6 of 7 criteria (Verification, ownership & freshness, Editor, structure & search, Pricing transparency, plus 3 more). Provenance — Nuclino: EU-Made; Slite: Rest of world, United States. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.

Nuclino

EU-Made

Panel rating

Sovereignty: not determined

Full evaluation →

Slite

Rest of world

Panel rating

Sovereignty: 1 of 6 dimensions proven

Full evaluation →

The short answer

Slite is ahead on authoring and search (7.3 vs 5.7), knowledge governance (6.8 vs 3.5) and access control (7.2 vs 6.0), with 6 judges leaning Slite on each, and on publishing and integrations (6.3 vs 5.7; 4 lean Slite, 2 ties). Nuclino leads only on sovereignty, 5.3 vs 3.7 with 6 judges leaning Nuclino — its verdict credits the German entity and a dated subprocessor list with data location Europe, while weighing the privacy policy's transfer reservation and no published data processing agreement. Portability and hosting is close (4.0 vs 3.8; 1 lean Slite, 5 ties) and pricing transparency splits 5 lean Slite, 1 tie. Weighted totals for the six judges run 5.9, 5.5, 6.6, 5.9, 5.9, 5.0 for Slite against 4.9, 4.9, 5.1, 5.2, 4.2, 4.7 for Nuclino. The leans differ by criterion; that split is the answer, not a winner.

Choose Nuclino if

  • You weight vendor sovereignty heavily in a knowledge-base purchase: 6 judges leaned Nuclino on that criterion (5.3 vs 3.7).
  • Your contracts must sit with a German GmbH — Nuclino GmbH of Grünwald, Germany — rather than Slite, Inc., a Delaware corporation.
  • Your vendor review requires a dated subprocessor list with data location recorded as Europe, as Nuclino's verdict documents.
  • Your procurement policy requires a product recorded as EU-made; Nuclino's provenance entry reads EU-made.

Choose Slite if

  • You need documents that stay verified: knowledge governance leans Slite with 6 judges to 0 (6.8 vs 3.5), with documented API-settable verification expiries and an agent that flags outdated docs against Slack, GitHub and Linear activity.
  • Your team writes all day: authoring and search leans Slite 6 judges to 0 (7.3 vs 5.7) on a real-time editor with Markdown, diagrams and hundreds of embeds, plus AI answers citing their exact sources across 20-plus connected sources.
  • You control access per document: access control leans Slite 6 judges to 0 (7.2 vs 6.0), with per-doc roles and cascading permissions that every query inherits.
  • You want published per-user prices: Basic at $10 per user/month and Pro at $20 per user/month, both billed yearly; pricing transparency leans Slite 5 judges to 1 tie (5.2 vs 3.8).
  • You rely on publishing and integrations: that criterion leans Slite 4 judges to 0 with 2 ties (6.3 vs 5.7).

Read this comparison as one judge. Each weighs the same scores by what they care about.

The Skeptic

Has migrated a wiki whose "export" turned out to be one PDF per page, watched a self-hosted edition announced as retired with two years' notice, and read "your data is never used for training" above a subprocessor list naming two AI providers. Asks what a full export contains, which model reads the pages and where, whether readers are billed like editors — and what leaving would cost.

Nuclino

Slite

This judge's pick

Criterion by criterion

Editor, structure & search

Nuclino

Real-time collaborative items with flowcharts and embedded files, collections with list, board, table and graph views, @-linking between items and a very large template library are all documented, and the help center covers workspaces, items, views and search. What the captures never show is the harder half: search filters, searching attachments, backlinks, and AI answers that name the pages they came from — Sidekick can be asked questions, but nothing captured says it cites anything.

Slite

A real-time collaborative editor with comments, mentions, templates and doc history, hundreds of embeds including Mermaid, Draw.io and Excalidraw diagrams, Markdown support, and a Chrome extension; AI answers cite the exact sources that shaped them, search runs across Slack, Notion, Google Drive, Jira and twenty-plus sources, and verified docs rank first with a trust signal on every citation. I found no public information on backlinks or a link graph, search inside attachments, or templates with variables, which keeps this below the top anchors.

Verification, ownership & freshness

Nuclino

What passes for governance here is a version history the MCP pages let an assistant restore, an audit log of "important team events", and team insights naming active contributors and popular content. Page owners, review dates with reminders, approval workflows, read confirmations and stale-content analytics are not described on the captured pages, which for a wiki is the thin edge.

Slite

Doc ownership and a verification workflow with an expiry date settable through the API, an agent that flags stale pages by comparing docs against Slack, GitHub and Linear activity and routes drafted fixes through a triage screen for human review, plus reading and search insights, scheduled maintenance checks and every write attributed in audit logs. I found no public information on read confirmations for mandatory pages, duplicate detection, multi-reviewer approval chains, or an exportable audit trail.

Permissions, SSO & administration

Nuclino

Workspace-level roles with read and edit control, private workspaces, groups, SAML single sign-on through ADFS and Microsoft Entra ID, two-factor authentication, admin restriction of public sharing and export, and AI tools that only see what the account may see are all public. What an auditor would ask next is missing from the captures: SCIM or LDAP provisioning, enforcement of two-factor authentication, and an audit log that names views and permission changes rather than "important team events".

Slite

Five workspace roles with documented doc-level permissions — Reader, Writer, Channel admin, No access — inheritance explained down the doc tree including how to restore it, guest handling, SCIM provisioning, OpenID SSO, audit logging of authentication and admin actions, and admin controls over invites, public sharing and user groups. Every query, even from third-party agents, inherits the user's permissions — exactly what I look for in an AI knowledge base. SAML, enforced two-factor for customers, IP or domain restrictions and directory group sync are not described on the captured pages.

Help-center publishing & integrations

Nuclino

Publishing items as a website on a custom domain is public, the API is documented and can pull and push Markdown, and the MCP server — Claude, ChatGPT, Cursor, VS Code, Windsurf, permissions respected — is the best-documented thing on the site. But external publishing stops at "publish as website": the captured pages describe nothing of SEO controls, multilingual publishing, a widget or webhooks, and beyond Active Directory we found no public information on named integrations such as Slack, Teams or Drive.

Slite

Public docs with SEO indexing, AI answers on public pages and custom branding and domain; a documented v1.0 API with service accounts and a TypeScript examples repository, an MCP endpoint with OAuth and forty-plus read-write tools, AI answers in Slack, Zapier, and hundreds of embeds. I found no public information on webhooks, multilingual publishing, logged-in customer access to a help center, help-desk ticket deflection, or analytics on published pages.

Import, export & self-hosting

Nuclino

The privacy policy promises you can "export certain information from within the Service" — I have lived through that sentence before — imports are "from several common formats and tools" with not one source named, and the API can pull and push content as Markdown. A help-center section on import and export exists, but nothing captured says what a full export contains or whether attachments and history survive it, or what happens to data after cancellation; the service is described as software-as-a-service only, and we found no public information on self-hosting or an open-source edition.

Slite

Leaving costs work: export covers individual docs in PDF, Markdown or HTML without history or comments, and the help pages state plainly that exporting several docs in bulk — a channel and the docs below it — is not possible; the API can fetch a document subtree and return SliteML or stripped HTML, so a real migration is a script you write yourself. Imports from Notion, Confluence, ClickUp, Quip and OneNote are offered, and workspace deletion schedules deletion from backups. I found no public information on a self-hosted or open-source edition, or on attachments in exports.

European sovereignty

Nuclino

The contracting entity is Nuclino GmbH of Grünwald under German law with Munich jurisdiction, and the subprocessor page names Amazon Web Services EMEA SARL in Luxembourg and Heroku, Inc., a US company, both with data location Europe. But the captured list stops at two cloud providers — the model behind the vendor's own AI assistant, plus email, support and payment, are not on it — the privacy policy reserves transfers "to wherever we, Nuclino or our third-party service providers operate", and we found no public information on a data processing agreement, a no-training statement or certifications.

Slite

The contracting entity is Slite, Inc., a Delaware corporation in San Francisco, hosting runs on Google Cloud Platform operated by Google LLC, and the privacy policy states personal information is provided in the United States and transferred to affiliates and service providers there; media assets and daily backups sit in EU buckets, but the Paris entity is explicitly stated not to commercialize the service or contract with customers. "Your data is never used to train AI models" is stated, a data processing agreement with standard contractual clauses and SOC 2 Type II exist, yet subprocessors appear as categories rather than a named list, and I found no public information on where the Elasticsearch index or the AI embeddings are processed beyond "internally using GPU resources".

Pricing transparency

Nuclino

The free tier, monthly and yearly billing, VAT-exclusive amounts and the two-week cancellation rule are published, and the user definition is at least honest: a user is anyone who joins the team, guests and read-only members included, and upgrading means upgrading everyone. But no per-user figure appears in the captured pricing page, and storage limits, seat minimums and which tier buys single sign-on or the AI are not described there, so the real annual cost is not computable from what I read.

Slite

Basic is "$10 per user/month Billed yearly" and Pro "$20 per user/month", with storage per user (5GB, 10GB, 10GB), a 200MB upload cap, thirty AI edits a month on Basic and fifty monthly credits per seat on Pro all public. But reader-only seats, audit logs, SCIM and HIPAA sit behind "Let's talk Custom pricing Contact Sales" Enterprise, and I found no public information on guest pricing, minimum seats, term, VAT treatment, or a free tier beyond the fourteen-day trial.

Sovereignty, side by side

Dimension Nuclino Slite
Legal entity Not determined Incorporated in US
Hosting location Not determined Not determined
Hosting options Not determined Not determined
Open source Not determined Not determined
Data processing agreement Not determined Not determined
Transfer impact assessment Not determined Not determined

Facts, side by side

Only facts both products carry under the same definition — anything else would not be a fair row.

Data · Deletion right yes1

captured 1 Nov 2026 · Report an error

yes2

captured 1 Nov 2026 · Report an error

Integrations · API yes3

captured 1 Nov 2026 · Report an error

Slite offers a public API to build on top of Slite docs4

captured 1 Nov 2026 · Report an error

Integrations · Mcp MCP listed in footer5

captured 1 Nov 2026 · Report an error

yes6

captured 1 Nov 2026 · Report an error

Legal · Entity Nuclino GmbH · Nördliche Münchner Str. 47, 82031 Grünwald, Germany7

captured 1 Nov 2026 · Report an error

controller · Slite, Inc.2

captured 1 Nov 2026 · Report an error

Product · Apps yes · yes · yes7

captured 1 Nov 2026 · Report an error

yes · yes6

captured 1 Nov 2026 · Report an error

Product · Realtime collaboration yes3

captured 1 Nov 2026 · Report an error

yes6

captured 1 Nov 2026 · Report an error

Product · SSO yes8

captured 1 Nov 2026 · Report an error

email/password · Google SSO · Slack SSO · Apple SSO9

captured 1 Nov 2026 · Report an error

Product · Use cases project management, document collaboration, onboarding, meeting notes5

captured 1 Nov 2026 · Report an error

Knowledge Management · Support · Customer Success10

captured 1 Nov 2026 · Report an error

Questions about Nuclino and Slite

Which is better, Nuclino or Slite?

As of 1 Nov 2026, the panel rates Slite higher: 3/5 against 2.5/5. Weighted by what each judge cares about, 0 of the 6 judges pick Nuclino and 6 pick Slite. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.

Is Nuclino or Slite European?

Nuclino is European (EU-Made). Slite is not European by provenance (Rest of world, United States). Provenance is read from each company’s own legal pages: who builds it and who owns it.

Do Nuclino and Slite have a free plan?

As of 1 Nov 2026, Nuclino’s own pages state a free plan; Slite’s pages as captured do not. Each product page links the pricing page it was read from.