Vercel AI SDK

Open-source framework (plus the hosted LangSmith/LangGraph platform) for building, chaining, and evaluating LLM-powered applications and agents.

Open-source Python framework and enterprise platform for orchestrating teams of role-based autonomous AI agents.

Open-source data framework for connecting LLMs to private/enterprise data sources, widely used for retrieval-augmented generation (RAG) pipelines.

Hyper-realistic voice cloning and multilingual TTS — the best voices in AI, period.