Compare Agno and OpenAI Agents SDK side by side. Both are tools in the Agent Frameworks category.
Updated April 29, 2026
Choose Agno if production-first design with stateless scaling and AgentOS runtime.
Choose OpenAI Agents SDK if completely free and open-source SDK.
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| Category | Agent Frameworks | Agent Frameworks |
| Pricing | Free open-source | — |
| Best For | Python teams building production AI agents that want first-class deployment, observability, and multi-agent support | — |
| Website | agno.com | github.com |
| Key Features |
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Curated quotes from Hacker News, Reddit, Product Hunt, and review blogs. Dates shown so you can judge whether early criticism still applies.
“Agno has emerged as one of the fastest-growing AI agent frameworks in 2026 — 39,100+ stars and a 424-contributor community.”
“Purpose-built for production with stateless scaling, session management, and enterprise features — closer to a 'framework + runtime + control plane' than just an SDK.”
“Memory is stored in your database — you own the data, not the vendor. That alone made it the right call for our compliance posture.”
“Smaller community than LangChain at production scale — but the documentation gap is closing fast.”
Key criteria to evaluate when comparing Agent Frameworks solutions:
Agno (formerly Phidata) is an open-source Python framework for building production-grade AI agents and multi-agent systems. With 39,100+ GitHub stars and an active 424-contributor community, it's emerged as one of the fastest-growing agent frameworks in 2026.
Agno provides three integrated layers: a Python SDK for building individual agents and multi-agent teams, a stateless FastAPI runtime called AgentOS for production deployment, and a control plane UI for monitoring, session management, and team operations. It supports 23+ LLM providers (OpenAI, Anthropic Claude, Google Gemini, and more) and ships 100+ pre-built tool integrations including web search, data analysis, file operations, and Model Context Protocol (MCP) servers.
Memory and knowledge systems are first-class: user memories, session memories, and RAG knowledge bases are stored in your database — you own the data, not Agno. Recent v2.5.13 (March 2026) added ReliabilityEval for agent evaluation, enhanced AgentOS APIs for session management, and Slack interface improvements. Agno is positioned as the production-first alternative to LangChain/LangGraph for Python teams.
The OpenAI Agents SDK is a production-ready framework launched in March 2025 as an evolution of OpenAI experimental Swarm project, which was widely adopted by the developer community. The SDK is completely free and open-source, though users pay for actual API usage when utilizing OpenAI hosted models. Built with a lightweight architecture featuring just four core primitives, the SDK makes it immediately accessible to developers familiar with OpenAI ecosystem. The framework requires only a few lines of code to get started and handles 80 percent of agent use cases with minimal overhead. Major companies like Coinbase used the Agents SDK to quickly prototype and deploy AgentKit for crypto wallet interactions. The SDK supports various real-world applications including customer support automation, multi-step research, content generation, code review, and sales prospecting. While the SDK itself is free, costs depend on token usage of the underlying models, with prices varying from USD 2.50 per million tokens for GPT-5.4 and higher. The OpenAI SDK is ideal for rapid development, while alternatives like LangGraph suit complex workflows requiring deep customization.
Developer frameworks and SDKs for building autonomous AI agents with tool use, planning, multi-step reasoning, and orchestration capabilities.
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