Onyx vs Sider
Onyx
onyx.appSider
sider.aiSide by side
| Figure | Onyx | Sider |
|---|---|---|
| Price from | $20/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 3 | 3 |
| Spec score · AI chatbots and assistants | 9.0 (#12) | 8.0 (#41) |
| Chat | The chat interface supports file and URL context, model selection, citations, projects, sharing and multiple AI actions. | Sider Chat can summarize, explain, and translate webpage, PDF, and YouTube content, and answer follow-up questions using models including GPT, Claude, and Gemini. |
| File uploads | Yes | Yes |
| Free plan | Yes | Yes |
| Image generation | Yes | Yes |
| Integrations | The product advertises more than 50 synced connectors and names Slack, Google Drive, Confluence, Salesforce, GitHub and Jira among supported sources. | Sider lists GPT, Claude, Gemini, and Grok among its chat models, and says Hand can triage a Gmail inbox. |
| Support | The Business plan includes Community Support; Enterprise lists Dedicated Support and an Enterprise SLA. | The Help Center offers searchable FAQs and says users can submit feedback to customer service for support. |
| Web search | Yes | Yes |
Plans
Sider
- Sider BasicPrice not published
- Sider ProfessionalPrice not published
- Sider UltraPrice not published
In their own words
Onyx
Onyx connects enterprise knowledge so people and AI agents can use relevant context in answers. It searches indexed sources in parallel and presents documents while enforcing each source's permissions. More than 50 connectors sync connected tools in the background and support hybrid semantic and keyword search. The Business plan lists chat and search, major LLM access, custom agents, MCP/OpenAPI actions, web search, deep research, code interpreter, and image generation. Business costs $20 a month, billed annually at $20 per user per month, for teams of any size, with 40+ app connectors and Community Support. Onyx provides APIs for messages, agents, LLM management, actions, and user authentication. Slack integrations can provide responses and agents; Microsoft Teams and Zendesk are described as coming soon. Deployments can run in a customer's cloud or on bare metal, including on-premise and fully air-gapped environments. The site says documents and embeddings can remain in customer infrastructure, data is not used for training, and permissions are checked at query time. Native Windows, macOS, and Linux apps connect to an existing deployment.