OpenAI unveils GPT-5.2 codex: The ultimate programming assistant?

OpenAI unveils GPT-5.2 codex: The ultimate programming assistant?

📖 This article is part of our comprehensive ChatGPT guide. Read the full guide →

With GPT-5.2-Codex, OpenAI releases a specialized model that understands logical relationships across complete repositories for the first time. It removes previous context limits and allows you to safely refactor entire legacy applications in a single run.

Read more

Overview: Vector databases for AI projects

TL;DR

Vector databases store data as high-dimensional vectors (embeddings), enabling semantic search — finding results by meaning, not just keywords.

  • Core use case: Power RAG systems, recommendation engines, and semantic search
  • Top options: Pinecone (managed), Weaviate (open source), ChromaDB (lightweight), Qdrant (Rust-based)
  • How it works: Text → Embedding model → Vector → Stored in DB → Similarity search via cosine/dot product

Bottom Line: If you’re building any AI application that needs to search or retrieve information, you need a vector database.

If you want to create AI applications such as a semantic search, you need a suitable vector database. These make embeddings available at lightning speed and scale better than classic SQL or NoSQL stores. We present popular options from SaaS to open source – including strengths, costs and typical use cases.

Read more