embeddings

Cohere is the enterprise-focused LLM provider founded by a transformer co-author. Learn its models, strengths, and how it compares to OpenAI and Anthropic.

Vector databases store embeddings and run similarity search via ANN indexes. Pinecone, Weaviate, Qdrant, pgvector — compared for 2026.

Embeddings turn text and images into vectors that capture meaning. Learn how vector search, RAG, and similarity work — with 2026 models compared.

RAG is the technique making AI tools actually useful for real work — letting models look things up instead of relying on memory. Here's how it works and why it matters.