Lightweight framework for multi-agent workflows from OpenAI.
Agent frameworks & SDKsopen-source
OpenAI Agents SDK vs Mastra
Verdict: in our “Best framework for your first agent” ranking, OpenAI Agents SDK ranks #1 and Mastra ranks #4. The table compares their verified basics; how we rank.
| Feature | OpenAI Agents SDK | Mastra |
|---|---|---|
| What it is | Lightweight framework for multi-agent workflows from OpenAI. | TypeScript framework for AI agents and workflows. |
| Category | Agent frameworks & SDKs | Agent frameworks & SDKs |
| Pricing model | open-source | open-source |
| Integrations | API, MCP | API, MCP |
| Self-hostable | Yes | Yes |
| Open-source repo | openai/openai-agents-python | mastra-ai/mastra |
| Rank in “Best framework for your first agent” | #1 | #4 |
| StackRank score | Not yet benchmarked | Not yet benchmarked |
| Last verified | Oct 14, 2026 | Oct 14, 2026 |
Try them
TypeScript framework for AI agents and workflows.
Agent frameworks & SDKsopen-source