Compare frameworks
Instructor vs Mastra
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 | Instructor | Mastra |
|---|---|---|
| Stars | 14,101Synced from sourceCurrent3h ago | 29,400 (highest of the compared values)Synced from sourceCurrent3h ago |
| downloads | 13,080,962 (highest of the compared values)Synced from sourceStale2mo ago· past SLA | 3,150,478Synced from sourceCurrent3h ago |
| Last commit | 2026-11-06Synced from sourceCurrent3h ago | 2026-11-08Synced from sourceCurrent3h ago |
| Language | pythonSeeded, unreviewedwritten 2mo ago | typescriptSeeded, unreviewedwritten 2mo ago |
| Licence | MITSynced from sourceCurrent3h ago | — |
| Archived | noSynced from sourceCurrent3h ago | noSynced from sourceCurrent3h ago |
| Category | structured-outputSeeded, unreviewedwritten 2mo ago | orchestrationSeeded, unreviewedwritten 2mo ago |
| Contributors | 268Synced from sourceCurrent3h ago | 701Synced from sourceCurrent3h ago |
| Forks | 1360Synced from sourceCurrent3h ago | 3085Synced from sourceCurrent3h ago |
| Maintainer | 567 LabsSeeded, unreviewedwritten 2mo ago | MastraSeeded, unreviewedwritten 2mo ago |
| npm downloads, monthly | — | 10391822Synced from sourceCurrent3h ago |
| npm downloads, weekly | — | 3150478Synced from sourceCurrent3h ago |
| npm package | — | @mastra/coreSynced from sourceCurrent3h ago |
| npm window ends | — | 2026-11-06Synced from sourceCurrent3h ago |
| Open issues | 11Synced from sourceCurrent3h ago | 820Synced from sourceCurrent3h ago |
| PyPI downloads, monthly | 27671654Synced from sourceStale2mo ago· past SLA | — |
| PyPI downloads, weekly | 13080962Synced from sourceStale2mo ago· past SLA | — |
| PyPI package | instructorSynced from sourceCurrent3h ago | — |
| PyPI released | 2026-09-09T02:25:54.888746ZSynced from sourceCurrent3h ago | — |
| Requires Python | <4.0,>=3.9Synced from sourceCurrent3h ago | — |
| PyPI version | 1.17.0Synced from sourceCurrent3h ago | — |
| Repository | https://github.com/567-labs/instructorSynced from sourceCurrent3h ago | https://github.com/mastra-ai/mastraSynced from sourceCurrent3h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 3h 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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