DSPy vs Google ADK: Which is Better in 2026?
Choosing between DSPy and Google ADK? 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 DSPy and Google ADK 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 4.2 out of 5).
DSPy vs Google ADK — Side by Side
| DSPy | Google ADK | |
|---|---|---|
| Category | Agent Framework | Agent Framework |
| Pricing | Free | Free |
| Starting price | Free tier available | Free tier available |
| Free tier | ||
| Rating | 4.2 | 4.4 |
| Best for | Agent Framework — prompt-optimisation, research | Agent Framework — ai, llm |
Pros & Cons
- Replaces prompt tinkering with measurable optimisation
- Strong research backing (Stanford)
- Composes well with any model provider
- A genuinely different mental model to learn
- Optimisation runs cost tokens
- 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
Key Features Compared
DSPy
- Declarative signatures
- Automatic prompt optimisation
- Compilers and teleprompters
- Evaluation built in
Google ADK
- Multi-agent orchestration
- Gemini-optimized, model-agnostic (LiteLLM)
- Built-in evaluation
- Tooling & code execution
- Python & Java
Choose DSPy if…
- You want a free tier to validate before paying.
- Replaces prompt tinkering with measurable optimisation
- Strong research backing (Stanford)
- Composes well with any model provider
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
Frequently Asked Questions
Is DSPy better than Google ADK?⌄
Both DSPy and Google ADK 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 4.2 out of 5).
What is the difference between DSPy and Google ADK?⌄
DSPy — Programs prompts instead of writing them — you define signatures and it optimises. Google ADK — Google's open-source Agent Development Kit — multi-agent systems optimized for Gemini and Vertex AI, model-agnostic via LiteLLM. Both are agent framework tools; the comparison table above breaks down pricing, free tiers, and what each is best for.
DSPy vs Google ADK: which is cheaper?⌄
DSPy pricing: Free. Google ADK pricing: Free. Confirm current pricing on each tool's official site, as plans change.
Which is rated higher, DSPy or Google ADK?⌄
In our catalog, DSPy rates 4.2 out of 5 and Google ADK rates 4.4 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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