Dify vs OpenAI Agents SDK: Agent Frameworks Comparison

Dify is a production-ready LLMOps platform for agentic workflow development, offering visual tools to build AI-native applications. The Sandbox tier provides 200 free GPT-4 calls, while Professional and Team plans serve independent developers and medium teams respectively. Team plan includes 10,000 message credits monthly with increased limits (200 apps, 1,000 knowledge documents, 20GB storage). Enterprise tier offers custom pricing with unlimited limits, dedicated support, SSO, and private cloud deployment. Dify is open-source and widely adopted for its easy-to-use interface enabling rapid AI application development without extensive coding.

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.