Compare frameworks
Guardrails vs DeepEval 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 | Guardrails | DeepEval | Pydantic AI |
|---|---|---|---|
| Stars | 7,443Synced from sourceCurrent5h ago | 18,419Synced from sourceCurrent5h ago | 20,133 (highest of the compared values)Synced from sourceCurrent5h ago |
| downloads | — | — | 3,076,771Synced from sourceStale1mo ago· past SLA |
| Last commit | 2026-09-22Synced from sourceCurrent5h ago | 2026-09-23Synced from sourceCurrent5h ago | 2026-09-24Synced from sourceCurrent5h ago |
| Language | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | Apache-2.0Synced from sourceCurrent5h ago | Apache-2.0Synced from sourceCurrent5h ago | MITSynced from sourceCurrent5h ago |
| Archived | noSynced from sourceCurrent5h ago | noSynced from sourceCurrent5h ago | noSynced from sourceCurrent5h ago |
| Category | validationSeeded, unreviewedwritten 1mo ago | evaluationSeeded, unreviewedwritten 1mo ago | structured-outputSeeded, unreviewedwritten 1mo ago |
| Contributors | 79Synced from sourceCurrent5h ago | 337Synced from sourceCurrent5h ago | 589Synced from sourceCurrent5h ago |
| Forks | 708Synced from sourceCurrent5h ago | 1973Synced from sourceCurrent5h ago | 2768Synced from sourceCurrent5h ago |
| Maintainer | Guardrails AISeeded, unreviewedwritten 1mo ago | Confident AISeeded, unreviewedwritten 1mo ago | PydanticSeeded, unreviewedwritten 1mo ago |
| Open issues | 80Synced from sourceCurrent5h ago | 654Synced from sourceCurrent5h ago | 965Synced from sourceCurrent5h ago |
| PyPI downloads, monthly | — | — | 13478631Synced from sourceStale1mo ago· past SLA |
| PyPI downloads, weekly | — | — | 3076771Synced from sourceStale1mo ago· past SLA |
| PyPI package | guardrails-aiSynced from sourceCurrent5h ago | deepevalSynced from sourceCurrent5h ago | pydantic-aiSynced from sourceCurrent5h ago |
| PyPI released | 2026-08-14T14:22:27.750056ZSynced from sourceCurrent5h ago | 2026-09-22T19:26:34.903554ZSynced from sourceCurrent5h ago | 2026-09-24T03:23:01.147978ZSynced from sourceCurrent5h ago |
| Requires Python | <3.14,>=3.10Synced from sourceCurrent5h ago | <4.0,>=3.9Synced from sourceCurrent5h ago | >=3.10Synced from sourceCurrent5h ago |
| PyPI version | 0.11.0Synced from sourceCurrent5h ago | 4.2.5Synced from sourceCurrent5h ago | 2.49.0Synced from sourceCurrent5h ago |
| Repository | https://github.com/guardrails-ai/guardrailsSynced from sourceCurrent5h ago | https://github.com/confident-ai/deepevalSynced from sourceCurrent5h ago | https://github.com/pydantic/pydantic-aiSynced from sourceCurrent5h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 5h 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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