Apache Solr vs Coveo

Apache Solr is a free, open-source, self-hosted search platform built on Apache Lucene. It provides full-text, vector, geospatial, and hybrid search through a REST query interface. Documents can be sent over HTTP as JSON, XML, CSV, or binary, with results returned in those formats. Matching supports phrases, wildcards, joins, and grouping; discovery tools include faceting, autocomplete, spelling suggestions, hit highlighting, and result clustering. Solr distributes indexing, replicates data, balances queries, and supports automated failover and recovery. Apache Tika integration extracts rich content such as PDF and Microsoft Word files. Its administrative interface controls instances and exposes cluster state, logs, threads, and metrics. Listed security capabilities include SSL, authentication, and role-based authorization. Solr runs on Linux, macOS, and Windows, with API access, and is licensed under Apache License, Version 2.0. The project describes use from weekend projects to global enterprises. Releases are not scheduled in advance, and versions below 9.10 are end of life without further updates. The Apache Solr plan is free.

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.