AWS Strands Agents vs Google Agent Development Kit (ADK)

AWS Strands Agents is free, with no paid plan attached. Google Agent Development Kit (ADK) is free, with no paid plan attached. Both are listed under Agent Frameworks (Developers), so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.

AWS Strands Agents vs Google Agent Development Kit (ADK) — straight answers

AWS Strands Agents vs Google Agent Development Kit (ADK): what is the difference?

AWS Strands Agents is free, with no paid plan attached and is listed for open-source (6,800+ stars) Python and TypeScript SDK from AWS. Google Agent Development Kit (ADK) is free, with no paid plan attached and is listed for open-source Python/Java framework from Google for building multi-agent systems. Both sit in Agent Frameworks (Developers).

Is AWS Strands Agents or Google Agent Development Kit (ADK) cheaper to start with?

Neither — AWS Strands Agents and Google Agent Development Kit (ADK) are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.

Which should I choose, AWS Strands Agents or Google Agent Development Kit (ADK)?

Choose AWS Strands Agents if you need open-source (6,800+ stars) Python and TypeScript SDK from AWS; choose Google Agent Development Kit (ADK) if you need open-source Python/Java framework from Google for building multi-agent systems. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

AWS Strands Agents compared with Google Agent Development Kit (ADK): pricing tier, category, listed capabilities and links.
 AWS Strands AgentsGoogle Agent Development Kit (ADK)
Pricing tierFreeFree
Free to startYesYes
CategoryAI Agents & AutomationAI Agents & Automation
TypeAgent Frameworks (Developers)Agent Frameworks (Developers)
Listed capabilities
  • Open-source (6,800+ stars) Python and TypeScript SDK from AWS
  • Steering handlers/hooks that catch agent mistakes before execution
  • Native Bedrock and AWS AgentCore integration, plus any-LLM support
  • Open-source Python/Java framework from Google for building multi-agent systems
  • Native integration with Vertex AI Agent Engine and Gemini models
  • Model-agnostic — works with non-Google LLMs via LiteLLM
Tagsaws agent sdk, strands agents, bedrock agents, open source agent framework, typescript python agents, amazongoogle adk, agent framework, multi-agent orchestration, open source, gemini agents, vertex ai agents
Websitestrandsagents.comadk.dev
Full pageAWS Strands Agents details →Google Agent Development Kit (ADK) details →
AlternativesAWS Strands Agents alternatives →Google Agent Development Kit (ADK) alternatives →

Agno

Agent Frameworks (Developers)
free
  • Open-source (Apache-2.0) Python framework, 41.7k GitHub stars
  • AgentOS: FastAPI-based production runtime for deploying agents
  • Control-plane UI for monitoring live agent systems across clouds

DSPy

Agent Frameworks (Developers)
free
  • Open-source (MIT) framework from Stanford NLP, 37k+ GitHub stars
  • Compiles/optimizes prompts automatically against metrics instead of manual prompt tuning
  • Production use at Databricks, Shopify, Dropbox, AWS; Shopify reports ~550x cost reduction

LangGraph

Agent Frameworks (Developers)
free
  • Build stateful, multi-agent apps as graphs
  • Human-in-the-loop and durable execution
  • Works with any LLM
  • Open-source with a hosted platform

Mastra

Agent Frameworks (Developers)
free
  • Open-source TypeScript framework (Apache 2.0) for agents, workflows and RAG
  • Drops directly into existing React/Next.js apps or runs standalone
  • Built-in workflow engine with suspend/resume and human-in-the-loop steps

Microsoft AutoGen

Agent Frameworks (Developers)
free
  • Multi-agent conversation framework
  • Event-driven, async agent design
  • Studio UI for prototyping
  • Fully open-source

OpenAI Agents SDK

Agent Frameworks (Developers)
free
  • Lightweight agent orchestration from OpenAI
  • Agent handoffs, guardrails and tracing
  • Tool and function calling built in
  • Open-source, pay only for model usage