Compare frameworks
Agno vs Haystack vs Pydantic AI
Every figure below carries the source that reported it and the moment it was observed. Values that failed validation are withheld rather than shown, and a dash means no source we track carries that field for that framework.
| Field | Agno | Haystack | Pydantic AI |
|---|---|---|---|
| Stars | 42,325 (highest of the compared values)Synced from sourceCurrent4h ago | 26,584Synced from sourceCurrent4h ago | 20,133Synced from sourceCurrent4h ago |
| downloads | 520,626Synced from sourceStale1mo ago· past SLA | — | 3,076,771 (highest of the compared values)Synced from sourceStale1mo ago· past SLA |
| Last commit | 2026-09-23Synced from sourceCurrent4h ago | 2026-09-23Synced from sourceCurrent4h ago | 2026-09-24Synced from sourceCurrent4h ago |
| Language | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | Apache-2.0Synced from sourceCurrent4h ago | Apache-2.0Synced from sourceCurrent4h ago | MITSynced from sourceCurrent4h ago |
| Archived | noSynced from sourceCurrent4h ago | noSynced from sourceCurrent4h ago | noSynced from sourceCurrent4h ago |
| Category | orchestrationSeeded, unreviewedwritten 1mo ago | ragSeeded, unreviewedwritten 1mo ago | structured-outputSeeded, unreviewedwritten 1mo ago |
| Contributors | 581Synced from sourceCurrent4h ago | 475Synced from sourceCurrent4h ago | 589Synced from sourceCurrent4h ago |
| Forks | 5999Synced from sourceCurrent4h ago | 3176Synced from sourceCurrent4h ago | 2768Synced from sourceCurrent4h ago |
| Maintainer | AgnoSeeded, unreviewedwritten 1mo ago | deepsetSeeded, unreviewedwritten 1mo ago | PydanticSeeded, unreviewedwritten 1mo ago |
| Open issues | 1611Synced from sourceCurrent4h ago | 168Synced from sourceCurrent4h ago | 965Synced from sourceCurrent4h ago |
| PyPI downloads, monthly | 2183543Synced from sourceStale1mo ago· past SLA | — | 13478631Synced from sourceStale1mo ago· past SLA |
| PyPI downloads, weekly | 520626Synced from sourceStale1mo ago· past SLA | — | 3076771Synced from sourceStale1mo ago· past SLA |
| PyPI package | agnoSynced from sourceCurrent4h ago | haystack-aiSynced from sourceCurrent4h ago | pydantic-aiSynced from sourceCurrent4h ago |
| PyPI released | 2026-09-23T13:15:37.685447ZSynced from sourceCurrent4h ago | 2026-09-03T09:27:43.312258ZSynced from sourceCurrent4h ago | 2026-09-24T03:23:01.147978ZSynced from sourceCurrent4h ago |
| Requires Python | <4,>=3.9Synced from sourceCurrent4h ago | >=3.10Synced from sourceCurrent4h ago | >=3.10Synced from sourceCurrent4h ago |
| PyPI version | 3.0.11Synced from sourceCurrent4h ago | 3.1.1Synced from sourceCurrent4h ago | 2.49.0Synced from sourceCurrent4h ago |
| Repository | https://github.com/agno-agi/agnoSynced from sourceCurrent4h ago | https://github.com/deepset-ai/haystackSynced from sourceCurrent4h ago | https://github.com/pydantic/pydantic-aiSynced from sourceCurrent4h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 4h ago. Where a row is marked, ▲ is the highest of the values shown and ▼ the lowest — arithmetic on the figures above, not a ranking or a recommendation. Rows where neither extreme is meaningful are left unmarked rather than given a direction they do not have.
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