Swarm — AI Glossary

Swarm is an experimental cookbook framework released by OpenAI in 2024 that demonstrated lightweight multi-agent patterns — primarily handoffs and shared context — without the production hardening of a full SDK. It was conceptually replaced in 2025 by the OpenAI Agents SDK, which preserves the agent-plus-handoff mental model and adds guardrails, tracing, structured outputs, async support, and built-in tools.