OpenAI Swarm alternatives
6 agents tools in the same lane as OpenAI Swarm, ranked by editorial score.
OA
OpenAI Agents SDK (Python)
Agents · GPT-4o / GPT-4.1 / gpt-realtime (provider-pluggable via LiteLLM)
A lightweight Python framework for building multi-agent LLM applications with handoffs, guardrails, and built-in tracing.
Free· SDK is free and open source (MIT-licensed). Cost is pass-through to whichever model provider you point it at — OpenAI API pricing applies when using GPT models; third-party providers billed separately.Multi-agent customer support with specialist handoffsVoice agents using gpt-realtime for phone or in-app calls
CR
CrewAI
FeaturedAgents · BYO (Claude / GPT / open)
8.4
Python framework for multi-agent orchestration.
Freemium· Basic: Free · Enterprise: Custommulti-agentorchestration
MS
mini-SWE-agent
Agents · Multi-model (via litellm, OpenRouter, Portkey)
7.2
A 100-line open-source coding agent that scores 74%+ on SWE-bench Verified.
Free· Free and open source (Apache 2.0); you pay only for the underlying LLM tokens.swe-bench-evaluationautonomous-coding
SA
SWE-agent
Agents · Multi-model (GPT-4o, Claude Sonnet, DeepSeek, local via LiteLLM)
7.0
Open-source autonomous agent framework that lets LLMs fix GitHub issues and find security vulnerabilities by using a custom agent-computer interface.
Free· Free and open-source; you pay your own LLM API costsgithub-issue-fixingautonomous-coding
LA
LangGraph
FeaturedAgents · BYO (Claude / GPT / open)
8.8
Stateful, graph-based agent orchestration from LangChain.
Freemium· Developer: $0 / seat · Plus: $39 / seat · Enterprise: Custom pricingstateful agentshuman-in-loop
EL
ElizaOS
Agents · Multi-model (BYO via plugins)
7.1
Open-source agentic OS for building and orchestrating multi-agent swarms across Discord, Telegram, X, and onchain.
Free· Free, open-source (self-hosted); bring your own model API keysmulti-agent-swarmssocial-bots