onyx

Free: Community Edition under MIT: chat and search UI, agentic RAG over 50+ connectors (Slack, Google Drive, Confluence, Jira, GitHub, SharePoint, Notion and more), custom agents, actions via MCP and OpenAPI, web search, deep research, code sandbox, artifacts, voice mode, and any LLM provider including local models. Onyx Cloud offers a 2-week free trial with no credit card, not a free plan.

Self-hosted: Docker, Kubernetes, Helm or Terraform, with a one-line install script. Lite mode needs 2 vCPU and 2 GB RAM minimum (under 1 GB at baseline) but cannot index documents. Standard runs OpenSearch, background workers, indexing and inference model servers, Postgres, Redis and blob storage: 4 vCPU and 10 GB RAM minimum, 8+ vCPU and 16+ GB preferred, and disk of 32 GB plus about 2.5x your indexed data. Paid features on a self-hosted instance unlock with a locally validated license key, including air-gapped installs.

Paid: Business is $20/user/month billed annually or $25/user/month billed monthly, on Cloud or self-hosted. It adds document permission inheritance, RBAC, query history and usage dashboards, encryption of secrets, service account API keys and custom theming. Enterprise is custom pricing and adds OIDC/SAML SSO, SCIM group sync, full white-labeling, custom roles, usage limits, hook extensions, region-specific deployments and an SLA. The code for paid features lives in ee/ directories under the Onyx Enterprise License, which allows dev and testing use but not production without a subscription. You pay your LLM provider separately.