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Introducing Respan Router

ArangoDB vs Elasticsearch (2026)

vs

Overview

Rating
10.0 / 10
Rating
10.0 / 10
Product Summary

ArangoDB is a multi-model database supporting graph, document, and search in a single engine.

Product Summary

Elasticsearch has added k-NN vector search capabilities to its distributed search and analytics engine. Teams can combine vector similarity search with Elasticsearch's powerful full-text search, filtering, and aggregation features in a single platform, making it ideal for hybrid search applications at enterprise scale.

Free Trial
No
Free Trial
No
Free Version
No
Free Version
No
Website

Strengths and tradeoffs

What each tool does well, and the limitations to keep in mind.

ElasticsearchElasticsearch

Pros

  • Most widely deployed open-source vector database with massive community
  • Mature ELK stack ecosystem with extensive integrations and tools
  • DiskBBQ algorithm enables efficient vector search without full in-memory indexes
  • Powerful hybrid search combining keyword, filters, and vector similarity
  • Consumption-based pricing—pay only for what you use

Cons

  • Can be complex to configure and optimize for vector search
  • Not purpose-built for vector search—added as a feature
  • Resource-intensive at scale without proper optimization
  • Pricing model complexity with multiple tiers and factors

Compare ArangoDB and Elasticsearch on your own traffic

10KFree traces/mo
1,000+Models
5 minSetup

Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.

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