10 Best AI Enterprise Search Tools of 2026

Glean ranks first because it is built around the exact job this list covers: one search box and assistant that reads every internal system an employee can access. The vendor lists more than 275 connectors, the broadest catalog here, and states that access is permission-aware from day one, so results respect each user's rights in the source app. Glean supports more than 40 LLMs and its November 2026 release added automatic model routing, Glean inside Microsoft Teams and Excel, and AI memory across workflows. Agents and APIs let teams turn search results into actions and custom tools. On security, the site lists SOC 2 Type II, ISO 27001, ISO 42001, HIPAA and TX-RAMP Level 2. The trade-off is cost visibility: Glean publishes no prices, so buyers must go through sales, and the product is aimed at enterprise rollouts rather than a ten-person team trying it on a credit card.

Microsoft 365 Copilot is the natural pick when your documents, mail and chats already sit in SharePoint, Outlook and Teams. Microsoft describes Copilot as a way to find answers and understand information so staff spend less time searching, and it works inside Word, Excel, PowerPoint, Outlook and Teams rather than in a separate portal. Beyond chat, the business page lists Cowork for handing off multi-step work, agents for specific processes, Notebooks and Autopilot. Pricing is public: the Copilot Business add-on was listed at $18 per user per month paid yearly, reduced from $21, and Microsoft also sells Business Standard with Copilot at $23.50 and Business Premium with Copilot at $32. Larger organizations pay $30 per user per month for the enterprise add-on. The limits are the prerequisite Microsoft 365 license, extra usage-based billing for select advanced features, and a reach that is strongest inside Microsoft's own apps.

Atlassian Rovo is the cheapest way on this list to give a team AI search with answers, because Atlassian now bundles it into its cloud plans. Confluence Standard, listed at $5.78 per user per month, includes Rovo Search, Chat and Agents, and Atlassian says no separate Rovo purchase is required for eligible sites. Rovo runs on the Teamwork Graph, which Atlassian describes as connecting work, knowledge, people and systems across first- and third-party tools. Usage is measured in credits: Jira or Confluence Standard includes 25 credits per user per month, Premium 70 and Enterprise 150, while Teamwork Collection and Service Collection plans get 250 to 1,500. Credits are pooled across the organization, and extra usage costs $0.01 per credit. The limits are clear too: you need an Atlassian Cloud Standard plan or higher, the Standard credit allowance is small for heavy users, and the experience is richest for content that already lives in Jira and Confluence.

Gemini Enterprise is Google's answer to Glean and the successor to Google Agentspace. Google's edition comparison shows permission-aware enterprise search and grounding on both Google and third-party data sources in every edition, so it is more than a Workspace add-on. The Business edition covers 1 to 500 users, while Standard and Plus add access to the full data connector ecosystem and more pooled storage, from 25 GiB per user on Business to 75 GiB on Plus. A Frontline edition serves shift workers once a company has 150 or more Standard or Plus users, and a pay-as-you-go edition bills through Cloud credits. Google lets buyers try the Plus edition free for 30 days without talking to sales. The catch for us was price transparency: the pages we could load did not show per-seat USD prices, and choosing among five editions takes some reading before you buy.

GoSearch is the easiest product here to try without a sales call. The free plan covers personal data with basic private connectors, 10 searches and 3 GoAI queries per day, a browser extension and Slack and Teams integrations. Pro, at $20 per user per month, opens all private connectors, unlimited searches and GoAI conversations, unlimited private agents, workflows and tasks, and file uploads up to 80 MB each. GoSearch says it offers more than 100 connectors, naming Google Drive, Confluence, Notion, Jira, Coda and HubSpot, and that setup takes minutes once a workspace exists. Enterprise adds shared connectors, GoSearch API, SSO, SAML and SCIM, audit logs, file verification and the option to bring your own LLM keys or cloud on AWS, Google Cloud or Azure. The company is SOC 2 Type II certified and hosted on AWS. The trade-offs are that admin controls sit behind sales pricing and its connector list is smaller than Glean's.

Amazon Quick gives AWS customers a low-cost way to put an AI assistant with company context in front of every employee. The Essentials plan costs $3 per user per month plus a $250 infrastructure fee per account, has no seat cap, and includes chat, research, Flows, apps and access to Quick Sight dashboards. Each Essentials user gets 1 agent hour per month, with AWS listing a temporary increase to 3 hours until January 31, 2027. Professional, at $20 per user plus the same account fee, raises that to 8 agent hours and 25 GB of pooled storage per user. Teams up to 300 can skip the AWS account path and buy Plus at $20 per user per month billed annually, and there is a free plan for individuals. Quick connects to tools such as Slack, email and QuickBooks. The trade-offs are metered agent hours, the fixed account fee that hurts very small teams, and a setup that assumes AWS familiarity.

Onyx suits teams that want a Glean-style search and chat layer with more control over models and hosting. The Business plan costs $20 per user per month on annual billing for teams of any size and includes a chat and search UI, access to all major LLMs, custom agents, actions over MCP or OpenAPI, more than 40 app connectors, web search, deep research, a code interpreter, a Slack integration and developer APIs. Permission inheritance and RBAC are included on Business. Enterprise adds OIDC and SAML SSO, on-premise and region-specific deployments, white-labeling, custom integrations and an enterprise SLA. Onyx says more than 1,000 teams use it and it handles over 1 million queries per week. The main caution is corporate: Onyx has announced it is joining Zoom, so buyers should ask how plans and product direction will change. Its connector catalog is also smaller than the leaders here.

Moveworks approaches enterprise search from the employee support side. Its Enterprise Search product offers more than 50 built-in content integrations and combines indexed search with live API search, which Moveworks calls hybrid retrieval, so results can be both fast and current. Permissions are enforced at the user and resource level and adapt as roles change, and answers come as summaries with inline citations. Multilingual search, granular filters and grouped results help employees scan sources, and companion apps put search in the web, chat, intranets and service portals. Because the same platform includes an AI Assistant, a Reasoning Engine and Tool Studio for agents, employees can search and then act, for example on IT or HR requests. ServiceNow has acquired Moveworks, which makes it a strong candidate for ServiceNow customers. The downsides are no public pricing and a smaller connector count than Glean or GoSearch.

Guru takes a different route from search-first tools: it builds a governed knowledge layer and then answers from it. Knowledge Agents return cited, permission-aware answers, and verification workflows plus automated maintenance aim to keep content current, with corrections flowing to every place the knowledge is used. Guru connects to more than 100 tools, naming Slack, Microsoft Teams, Salesforce, Zendesk, Confluence and SharePoint, and delivers knowledge to other AI assistants through MCP. On governance it lists SOC 2 Type II, HIPAA and GxP, SSO, SCIM, role-based access, DLP masking, encryption and centralized audit logs, and says customer data never trains its models. Pricing has moved to tailored packages that include a team of solution engineers for knowledge design and rollout, so there is no self-serve seat price. That makes Guru a better fit for support and operations teams that care about answer accuracy than for a quick company-wide search trial.

Coveo is a search platform first, which makes it a good fit for enterprises that want to run employee search and customer-facing search on one stack. Its pricing page groups Service, Website and Workplace into one offering, with entitlement-based pricing for service and websites and seat-based plans for workplace search. The base platform includes a unified search index, native and universal connectors, document-level security and permissions, query suggestions, automatic relevance tuning, analytics and A/B testing. Generative and agentic features such as generative answering, conversational search, the Answer API and the Passage Retrieval API are sold as an add-on. Enhanced security options include a HIPAA cloud, bring-your-own-key encryption and 99.999% uptime with active-active resiliency in the US. The trade-offs are a sales-only price, AI answering that costs extra, and a toolset that expects a search or IT team to tune pipelines rather than an assistant employees use on day one.