Chroma
Open-source vector database (Apache 2.0) with Rust-core engine delivering 4x faster queries, serverless cloud with full-text search, and database forking.
open-source-or-cloud
Open ToolLangChain
Agent framework (v1.1) with create_agent abstraction, LangGraph stateful orchestration, middleware for retries and moderation, and model profiles.
open-source
Open ToolOpenAI
GPT-5.2 and o-series reasoning models with the Responses API, AgentKit, and built-in tools for web search, code execution, and computer use.
usage-based
Open ToolSupabase
Postgres backend with built-in pgvector for vector search, hybrid search (BM25 + vector), auth, real-time subscriptions, edge functions, and row-level security.
freemium
Open ToolWeaviate
Open-source vector engine with built-in Weaviate Agents (Query, Transformation, Personalization), Hybrid Search 2.0, and multi-tenant architecture.
open-source-or-cloud
Open Tool