OpenAI Agents SDK
OpenAI's production-ready successor to Swarm — agents, hand-offs, and guardrails
Verdict
The production evolution of Swarm. Same lightweight hand-off pattern, but with built-in tracing, guardrails, and sessions that make it viable beyond prototypes. Works with the Responses API and, via LiteLLM-style adapters, other model providers. Good default for teams starting fresh on OpenAI-centric multi-agent work.
Other AI Agents & Platforms
- OpenAI Responses APIProduction
OpenAI's current API for building agents — merges Chat Completions simplicity with Assistants-era tool use
- OpenAI Assistants APISuperseded
Managed agent platform with tools, files, and persistent threads — deprecated in favour of the Responses API
- Claude MCP / Tool UseProduction
Anthropic's Model Context Protocol for universal tool integration
- Microsoft Copilot StudioProduction
Enterprise agent builder with Microsoft 365 and Azure integration
- AutoGenStable
Microsoft's multi-agent conversation framework
- CrewAIStable
Role-based multi-agent framework with simple, intuitive API