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embedding-strategies

Choose embedding models, which represent text as numerical vectors, for meaning-based search and RAG applications. Compare options for code, prose, and multilingual content, and plan document splitting, preprocessing, caching, and dimension reduction to improve retrieval quality.

OriginalShow the original description

Select and optimize embedding models for semantic search and RAG applications. Use when choosing embedding models, implementing chunking strategies, or optimizing embedding quality for specific domains.

Works withOpenAI
See how to install

Good for

  • Choosing an embedding model for RAG
  • Reviewing document chunk size and boundaries
  • Planning code or specialist document search
  • Handling multilingual content in search

Files included (2)

  • SKILL.md2.8 KB
  • references/details.md16.4 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Embedding Strategies

Guide to selecting and optimizing embedding models for vector search applications.

When to Use This Skill

  • Choosing embedding models for RAG
  • Optimizing chunking strategies
  • Fine-tuning embeddings for domains
  • Comparing embedding model performance
  • Reducing embedding dimensions
  • Handling multilingual content

Core Concepts

1. Embedding Model Comparison (2026)

ModelDimensionsMax TokensBest For
voyage-3-large102432000Claude apps (Anthropic recommended)
voyage-3102432000Claude apps, cost-effective
voyage-code-3102432000Code search
voyage-finance-2102432000Financial documents
voyage-law-2102432000Legal documents
text-embedding-3-large30728191OpenAI apps, high accuracy
text-embedding-3-small15368191OpenAI apps, cost-effective
bge-large-en-v1.51024512Open source, local deployment
all-MiniLM-L6-v2384256Fast, lightweight
multilingual-e5-large1024512Multi-language

2. Embedding Pipeline

Document → Chunking → Preprocessing → Embedding Model → Vector
                ↓
        [Overlap, Size]  [Clean, Normalize]  [API/Local]

Templates and detailed worked examples

Full template library and detailed worked examples live in references/details.md. Read that file when you need the concrete templates.

Best Practices

Do's

  • Match model to use case: Code vs prose vs multilingual
  • Chunk thoughtfully: Preserve semantic boundaries
  • Normalize embeddings: For cosine similarity search
  • Batch requests: More efficient than one-by-one
  • Cache embeddings: Avoid recomputing for static content
  • Use Voyage AI for Claude apps: Recommended by Anthropic

Don'ts

  • Don't ignore token limits: Truncation loses information
  • Don't mix embedding models: Incompatible vector spaces
  • Don't skip preprocessing: Garbage in, garbage out
  • Don't over-chunk: Lose important context
  • Don't forget metadata: Essential for filtering and debugging

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