Compare frameworks
Instructor vs Vercel AI SDK vs DSPy
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 | Vercel AI SDK | DSPy |
|---|---|---|---|
| Stars | 13,939Synced from sourceCurrent4h ago | 26,922Synced from sourceCurrent4h ago | 38,243 (highest of the compared values)Synced from sourceCurrent4h ago |
| downloads | 13,080,962Synced from sourceStale1mo ago· past SLA | 17,883,737 (highest of the compared values)Synced from sourceCurrent4h ago | — |
| Last commit | 2026-09-22Synced from sourceCurrent4h ago | 2026-09-24Synced from sourceCurrent4h ago | 2026-09-23Synced from sourceCurrent4h ago |
| Language | pythonSeeded, unreviewedwritten 1mo ago | typescriptSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | MITSynced from sourceCurrent4h ago | — | MITSynced from sourceCurrent4h ago |
| Archived | noSynced from sourceCurrent4h ago | noSynced from sourceCurrent4h ago | noSynced from sourceCurrent4h ago |
| Category | structured-outputSeeded, unreviewedwritten 1mo ago | orchestrationSeeded, unreviewedwritten 1mo ago | optimisationSeeded, unreviewedwritten 1mo ago |
| Contributors | 267Synced from sourceCurrent4h ago | 715Synced from sourceCurrent4h ago | 459Synced from sourceCurrent4h ago |
| Forks | 1262Synced from sourceCurrent4h ago | 5180Synced from sourceCurrent4h ago | 3353Synced from sourceCurrent4h ago |
| Maintainer | 567 LabsSeeded, unreviewedwritten 1mo ago | VercelSeeded, unreviewedwritten 1mo ago | Stanford NLPSeeded, unreviewedwritten 1mo ago |
| npm downloads, monthly | — | 87791075Synced from sourceCurrent4h ago | — |
| npm downloads, weekly | — | 17883737Synced from sourceCurrent4h ago | — |
| npm package | — | aiSynced from sourceCurrent4h ago | — |
| npm window ends | — | 2026-09-21Synced from sourceCurrent4h ago | — |
| Open issues | 90Synced from sourceCurrent4h ago | 1462Synced from sourceCurrent4h ago | 726Synced from sourceCurrent4h ago |
| PyPI downloads, monthly | 27671654Synced from sourceStale1mo ago· past SLA | — | — |
| PyPI downloads, weekly | 13080962Synced from sourceStale1mo ago· past SLA | — | — |
| PyPI package | instructorSynced from sourceCurrent4h ago | — | dspy-aiSynced from sourceCurrent4h ago |
| PyPI released | 2026-09-09T02:25:54.888746ZSynced from sourceCurrent4h ago | — | 2026-08-21T23:06:20.945191ZSynced from sourceCurrent4h ago |
| Requires Python | <4.0,>=3.9Synced from sourceCurrent4h ago | — | >=3.9Synced from sourceCurrent4h ago |
| PyPI version | 1.17.0Synced from sourceCurrent4h ago | — | 3.3.1Synced from sourceCurrent4h ago |
| Repository | https://github.com/567-labs/instructorSynced from sourceCurrent4h ago | https://github.com/vercel/aiSynced from sourceCurrent4h ago | https://github.com/stanfordnlp/dspySynced 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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