Epsilla alternatives
6 rag tools in the same lane as Epsilla, ranked by editorial score.
VE
Vectara
RAG · In-house Boomerang (retrieval) and Mockingbird (generation) plus BYOM for GPT, Claude, Gemini, and open-weight LLMs
Enterprise agent platform with built-in retrieval, grounding, and hallucination controls
Enterprise· SaaS: $100K/ year · VPC: $250K/ year · On-prem: $500K/ yearEnterprise knowledge-base searchGrounded customer-support chatbots
AG
Agentset
RAG · Multi-model (Claude, OpenAI, Google, xAI, Cohere, Mistral, DeepSeek)
7.3
Production-ready RAG infrastructure with agentic search, citations, and model-agnostic plumbing.
Freemium· Free: $0 · Pro: $49 · Enterprise: Customdocument-qaagentic-search
MA
MaxKB
RAG · Multi-model
7.0
Open-source enterprise RAG and agent platform with built-in workflow engine and multi-LLM support.
Freemium· Community edition free (GPLv3); paid enterprise editionenterprise-knowledge-basecustomer-support-bots
QU
Quivr
RAG · Multi-model (OpenAI, Anthropic, Mistral, Gemma)
8.4
Open-source RAG framework for building custom AI assistants over your own documents in a few lines of Python.
Free· Open source (pip install quivr-core); pay only for LLM/vector-store usagedocument-qacustom-knowledge-base
RA
RAGFlow
RAG · Multi-model
8.1
Open-source RAG engine with deep document parsing, hybrid search, and visual agent orchestration.
Freemium· Free tier; Starter $29/mo; Pro $129/mo; Enterprise customdocument-qaenterprise-search
SU
Superduper
RAG · Multi-model
7.0
Enterprise AI agent orchestration that brings RAG and agents to your existing data stack without migration.
Enterprise· Free trial on Snowflake Marketplace; enterprise self-hosted pricing on requestin-database-ragagent-orchestration