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OpenAI Agents SDK
OpenAI Agents SDK is a lightweight software framework for building multi-agent workflows with LLMs.
The OpenAI Agents SDK is a framework for building multi-agent workflows using Python 3.10 or newer. It supports the OpenAI Responses and Chat Completions APIs alongside over 100 other large language models. The software provides core concepts such as agents with instructions, sandbox agents for containerized work, realtime voice agents, and agent handoffs. It includes features like configurable input and output guardrails, human-in-the-loop mechanisms, automatic session history management, and run tracing. The framework is designed for developers building text, voice, and sandbox agent pipelines.
OpenAI Agents SDK at a glance
- Best for: Software engineer
- Runs on: macOS, Linux, Windows, API, self-hosted, open source
- Pricing: Free
- Released: March 2025
- Category: AI coding tool
- Website: github.com/openai/openai-agents-python
Key features
- Agent instructions and tool integration
- Sandbox agents for containerized tasks
- Realtime voice agents via WebSocket
- Agent handoffs and tool delegation
- Input and output guardrails
- Human-in-the-loop mechanisms
- Automatic conversation history management
- Built-in run tracing and debugging
Use it for
- Build multi-agent workflows
- Create voice and multimodal agents
- Run containerized long-horizon tasks
- Execute automated tool delegations
Companions
Tools that articles about OpenAI Agents SDK recommend using with it, each with its job.
- Context7 — Provides up-to-date documentation for AI agents and code editors.
- Ollama — Run local models at zero marginal cost, with code kept on your machine.
- OpenRouter — Access over 500 models and 80 providers through one unified API.
- Daytona — Runs sessions in isolated sandboxes synced to git branches.
- Oh My OpenCode Slim — Lightweight multi-agent orchestration and background tasks.
Alternatives to OpenAI Agents SDK
- OpenCode — Works with 75+ model providers, local models, and existing subscriptions
- OpenFlow — Build and run multi-agent AI pipelines on a visual canvas using real parallel agents.
- BeeAI Framework — Provides constraint enforcement for predictable agent behavior.
- AG-UI — Standardizes agent-user interactions and generative UI for applications.
- Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
- OpenSquilla — Maximizes AI intelligence density while minimizing token costs through smart routing.
- Open Agents Template — Spawn autonomous coding agents with full sandboxes and durable workflows.
- OpenChamber — Run and review multi-model AI coding agents from desktop, browser, and mobile devices.
- OpenViking — Unifies agent memory, knowledge RAG, and skills into a single directory structure.
- OpenSandbox — Provides isolated environments with multi-language SDKs and lifecycle management.
- Google ADK — It applies software development principles to agent creation with Python.
- OpenAgentsControl — Generates code matching your patterns and requires approval before execution.
All OpenAI Agents SDK alternatives