Data Agents

Defog and SQLCoder: self-hosted text-to-SQL with open-weights models from Hugging Face, fine-tuning on your schema, and how they compare to Vanna and Wren AI.

huggingface: defog/sqlcoder-7b-2 (via transformers, vLLM, or Ollama)

Julius AI review: upload a CSV or Excel and chat to analyze it. How it runs Python under the hood, pricing tiers, strengths and limits vs Code Interpreter.

Web app — no install; sign up at julius.ai

PandasAI review: chat with your DataFrames in Python. How it generates pandas code, sandbox security, LLM support, and honest accuracy limits.

pip install pandasai

Vanna AI review: how the open-source text-to-SQL framework trains RAG on your schema, real accuracy expectations, pricing, and self-host vs cloud setup.

pip install vanna

Wren AI: open-source GenBI agent that turns your data warehouse into a natural-language interface with a semantic layer, charts, and shareable threads.

docker compose -f docker-compose.yaml up -d