Agent Framework

Google ADK vs smolagents: Which is Better in 2026?

Choosing between Google ADK and smolagents? Both are popular agent framework tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Quick verdict

Both Google ADK and smolagents are strong agent framework choices. The right pick comes down to your specific feature needs, existing stack, and team preferences. In our catalog, Google ADK rates slightly higher (4.4 vs 4.1 out of 5).

Google ADK vs smolagents — Side by Side

Google ADKsmolagents
CategoryAgent FrameworkAgent Framework
PricingFreeFree
Starting priceFree tier availableFree tier available
Free tier
Rating4.44.1
Best forAgent Framework — ai, llmAgent Framework — ai, minimal

Pros & Cons

Google ADK
Google ADK
  • Deep GCP / Vertex AI integration
  • Strong multi-agent support
  • Model-agnostic via LiteLLM
  • Backed by Google
  • Best value tied to Google Cloud
  • Younger ecosystem than LangChain
smolagents
smolagents
  • Small enough to read end to end in an afternoon
  • Code-as-action beats JSON tool calls for many tasks
  • Hugging Face Hub integration
  • Deliberately minimal — no orchestration layer
  • Running model-written code needs a sandbox

Key Features Compared

Google ADK

  • Multi-agent orchestration
  • Gemini-optimized, model-agnostic (LiteLLM)
  • Built-in evaluation
  • Tooling & code execution
  • Python & Java

smolagents

  • Code-writing agents
  • Roughly a thousand lines of core
  • Any model provider
  • Sandboxed execution options

Choose Google ADK if…

  • You want a free tier to validate before paying.
  • Deep GCP / Vertex AI integration
  • Strong multi-agent support
  • Model-agnostic via LiteLLM
Google ADK review & pricing

Choose smolagents if…

  • You want a free tier to validate before paying.
  • Small enough to read end to end in an afternoon
  • Code-as-action beats JSON tool calls for many tasks
  • Hugging Face Hub integration
smolagents review & pricing

Frequently Asked Questions

Is Google ADK better than smolagents?⌄

Both Google ADK and smolagents are strong agent framework choices. The right pick comes down to your specific feature needs, existing stack, and team preferences. In our catalog, Google ADK rates slightly higher (4.4 vs 4.1 out of 5).

What is the difference between Google ADK and smolagents?⌄

Google ADK — Google's open-source Agent Development Kit — multi-agent systems optimized for Gemini and Vertex AI, model-agnostic via LiteLLM. smolagents — Hugging Face's minimal agent library — agents that write and run Python. Both are agent framework tools; the comparison table above breaks down pricing, free tiers, and what each is best for.

Google ADK vs smolagents: which is cheaper?⌄

Google ADK pricing: Free. smolagents pricing: Free. Confirm current pricing on each tool's official site, as plans change.

Which is rated higher, Google ADK or smolagents?⌄

In our catalog, Google ADK rates 4.4 out of 5 and smolagents rates 4.1 out of 5, so Google ADK has a slight edge on reviews.

See more options in our guide to the best agent framework tools for startups.

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