Anthropic
Claude Opus 4.6, Sonnet 4.5, and Haiku 4.5 with extended thinking, agent teams, MCP integration, and up to 1M token context windows.
usage-based
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 ToolQdrant
High-performance vector engine with discovery and recommendation APIs, score-boosting reranking, tiered multitenancy, and edge deployment via Qdrant Edge.
open-source-or-cloud
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