Frameworks

Google ADK vs Haystack

How Google ADK and Haystack compare on real-world demand, licensing, adoption and positioning — straight from the Agent Reality Index.

Agent Reality Index
Google ADK #5 in Frameworks · 59.0 / 100 Haystack #3 in Frameworks · 63.1 / 100
Dimension Google ADK Haystack
Agent Reality Index 59.0 / 100 (#5) 63.1 / 100 (#3)
Monthly search demand ~9.9k/mo ~4.6k/mo
Licensing Open-source Open-source
Developer adoption 20k★ on GitHub 26k★ on GitHub
Positioning High-level / opinionated · Multi-agent team Low-level / composable · Single-agent

The verdict

Haystack leads Google ADK on the Agent Reality Index (63.1 vs 59.0), driven mainly by stronger real-world search demand — the heaviest factor in the index. Google ADK remains a credible choice where its positioning fits your workflow better; the row above shows where the two diverge.

Figures auto-generated from the Agent Reality Index and refreshed monthly. How the index is built →

Common questions

Frequently asked questions

What is the difference between Google ADK and Haystack?

How Google ADK and Haystack compare on real-world demand, licensing, adoption and positioning — straight from the Agent Reality Index.

Is Google ADK or Haystack better?

Haystack leads Google ADK on the Agent Reality Index (63.1 vs 59.0), driven mainly by stronger real-world search demand — the heaviest factor in the index. Google ADK remains a credible choice where its positioning fits your workflow better; the row above shows where the two diverge.

How do Google ADK and Haystack compare on the Agent Reality Index?

On the Agent Reality Index, Google ADK scores 59.0 of 100 (ranked #5 in Frameworks) and Haystack scores 63.1 of 100 (#3 in Frameworks). The index weights real-world demand most heavily and refreshes monthly.

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