Google Agent Development Kit (ADK) vs OpenAI Agents SDK

Detailed side-by-side comparison to help you choose the right tool

Google Agent Development Kit (ADK)

🔴Developer

AI Agent Builders

Google's open-source framework for building, evaluating, and deploying multi-agent AI systems with Gemini and other LLMs.

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Starting Price

Free

OpenAI Agents SDK

🔴Developer

AI Agent Builders

Official OpenAI SDK for building production-ready AI agents with GPT models and function calling.

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Starting Price

Free

Feature Comparison

Scroll horizontally to compare details.

FeatureGoogle Agent Development Kit (ADK)OpenAI Agents SDK
CategoryAI Agent BuildersAI Agent Builders
Pricing Plans4 tiers11 tiers
Starting PriceFreeFree
Key Features

      Google Agent Development Kit (ADK) - Pros & Cons

      Pros

      • First-party Google support with Gemini optimization
      • Excellent built-in evaluation and testing tools
      • Native MCP protocol support
      • Local web UI for development and debugging
      • Production-tested at Google scale

      Cons

      • Best experience tied to Google Cloud ecosystem
      • Newer than LangChain — smaller third-party ecosystem
      • Python-only currently
      • Gemini-optimized features may not work with all models

      OpenAI Agents SDK - Pros & Cons

      Pros

      • Official OpenAI support and updates
      • Excellent function calling capabilities
      • Strong production features
      • Active development and community
      • Comprehensive documentation

      Cons

      • Vendor lock-in to OpenAI models
      • Can be expensive for high-volume use cases
      • Limited multimodal capabilities compared to newer models

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