OpenAI Agents SDK
OpenAI Agents SDK is a lightweight open-source Python framework for building multi-agent workflows that works with OpenAI's Responses and Chat Completions APIs and other LLM providers.
Our verdict
The simplest way to ship a real agent: a small set of primitives (agents, tools, handoffs, guardrails) and it works with other model providers too. Start here unless you need complex graphs.
Best for
- ✓ First production agent
- ✓ Multi-agent handoffs
- ✓ Python developers
Watch out for
- ! Model usage is billed separately by your provider
Pricing
Read from the official pricing page. Prices in USD; always confirm on the vendor's site.
| Plan | Price | Details |
|---|---|---|
| SDK (open source) | Free | MIT-licensed library. Model usage is billed separately by the model provider (e.g. OpenAI API token pricing) - check site. |
Note: License verified on official GitHub repo. No subscription for the SDK itself; underlying model API costs were not read and are not recorded.
Open source (MIT).
When to switch
Your agent needs complex branching and durable state
→ LangGraph (LangChain). LangGraph models explicit state machines and long-running workflows.
Featured in
- #1 pickBest AI agent framework