Coveo vs Fess
Coveo
coveo.com
Fess
fess.codelibs.orgSide by side
| Figure | Coveo | Fess |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · AI Enterprise Search Software | 7.9 (#10) | 8.3 (#6) |
| Spec score · Enterprise Search Software | 7.9 (#9) | 8.2 (#6) |
| Integrations | Coveo lists native integrations including Adobe, Agentforce, Salesforce, ServiceNow, Sitecore, Zendesk, SAP, Shopify, and OpenAI ChatGPT Enterprise; it also offers open APIs and frameworks for custom integrations. | Fess can return search results in JSON, integrate with websites using JavaScript, and extend functionality through plugins. |
| Support | The pricing page lists Coveo Care, business value assessment and realization, and an implementation partner network; Technical Account Manager and Developer Support are listed as add-ons. | The open-source edition is community-supported and has no guaranteed support; paid professional support is available by email. |
Plans
In their own words
Coveo
Coveo is a cloud AI-Relevance Platform for search, recommendations, personalization, and discovery across commerce, service, website, and workplace experiences. Its hybrid search combines advanced rules, business logic, A/B testing, and query pipeline management. A unified index, native and universal connectors, document-level security, permissions, and refresh controls support indexed content. Behavioral features include query suggestions, Automatic Relevance Tuning, dynamic navigation, and content recommendations. Generative and agentic options include conversational search, generative answering, Answer API, Coveo for Agentforce, Passage Retrieval API, and Smart Snippets; the pricing page marks this suite as an add-on. Commerce capabilities cover catalog indexing, recommendations, listing optimization, merchandising, and conversational product discovery, with some add-ons. Integrations include Adobe, Salesforce, ServiceNow, Sitecore, Zendesk, SAP, Shopify, and OpenAI ChatGPT Enterprise, plus open APIs. Hosted data uses AES-256 at rest and TLS 1.3 in transit. Pricing is on request, and a trial organization lasts 14 days.