--reranker <type>

# Skip reranking step
praisonai knowledge query "What is Python?" --reranker none

# Keyword-based, no external deps
praisonai knowledge query "What is Python?" --reranker simple

# Uses LLM to score relevance
export OPENAI_API_KEY=sk-xxx
praisonai knowledge query "What is Python?" --reranker llm

# Requires sentence-transformers
pip install sentence-transformers
praisonai knowledge query "What is Python?" --reranker cross_encoder

# Requires Cohere API key
export COHERE_API_KEY=xxx
praisonai knowledge query "What is Python?" --reranker cohere

# Fusion retrieval + simple reranking
praisonai knowledge query "Compare approaches" \
  --retrieval fusion \
  --reranker simple

# Complete RAG with reranking
praisonai knowledge query "Best practices for deployment" \
  --vector-store chroma \
  --retrieval fusion \
  --reranker simple \
  --query-mode default

# For LLM reranker
export OPENAI_API_KEY=sk-xxx

# For Cohere reranker
export COHERE_API_KEY=xxx