LLM / Model Claude (Anthropic) Anthropic's frontier model family, strong at reasoning, long context, and reliable tool use. OpenAI GPT OpenAI's GPT models, with a mature ecosystem, function calling, and a large community. Google Gemini Google's multimodal model family with very large context windows and tight Google Cloud integration. Meta Llama Meta's open-weight models you can self-host, fine-tune, and run on your own hardware.
Coding / IDE Cursor An AI-first fork of VS Code with whole-codebase chat, inline edits, and an agent mode. VS Code + Cline Stock VS Code paired with Cline, an open-source autonomous coding agent extension. Windsurf Cognition AI's agentic IDE (rebranded Devin Desktop in June 2026) built around an autonomous 'flow' that edits across many files at once. Claude Code Anthropic's terminal-based coding agent that reads, edits, and runs your codebase from the command line.
Agent Framework LangGraph A graph-based framework for building stateful, controllable multi-step agents in Python or JS. CrewAI A role-based framework for orchestrating teams of cooperating agents with defined goals and tasks. AutoGen Microsoft's framework for multi-agent conversations where agents collaborate and call tools, now in maintenance mode, with the Microsoft Agent Framework (1.0, April 2026) as its successor.
Automation n8n An open-source, self-hostable workflow automation tool with first-class AI and HTTP nodes. Zapier A no-code automation platform connecting thousands of SaaS apps with AI steps built in. Make A visual automation platform with a flexible scenario canvas and granular data mapping.
Local Runtime Ollama The simplest way to download and run open-weight models locally with an OpenAI-compatible API. LM Studio A desktop app for discovering, downloading, and chatting with local models, plus a built-in server. vLLM A high-throughput inference server for self-hosting open models in production with batching.
Vector / Memory pgvector A Postgres extension that adds vector similarity search to the database you probably already run. Pinecone A fully managed vector database that scales similarity search without you running infrastructure. Weaviate An open-source vector database with built-in hybrid search and optional self-hosting. Chroma A lightweight, developer-friendly vector store that's ideal for local prototypes and small apps.
Observability Langfuse An open-source LLM observability platform for tracing, evals, and prompt management. LangSmith LangChain's platform for debugging, testing, and monitoring LLM and agent applications. Helicone A proxy-based observability layer that logs, caches, and tracks cost across LLM providers.