Compare frameworks
Semantic Kernel vs Haystack
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 | Semantic Kernel | Haystack |
|---|---|---|
| Stars | 28,593 (highest of the compared values)Synced from sourceCurrentjust now | 26,584Synced from sourceCurrentjust now |
| Last commit | 2026-09-19Synced from sourceCurrentjust now | 2026-09-23Synced from sourceCurrentjust now |
| Language | csharpSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | MITSynced from sourceCurrentjust now | Apache-2.0Synced from sourceCurrentjust now |
| Archived | noSynced from sourceCurrentjust now | noSynced from sourceCurrentjust now |
| Category | orchestrationSeeded, unreviewedwritten 1mo ago | ragSeeded, unreviewedwritten 1mo ago |
| Contributors | 416Synced from sourceCurrentjust now | 475Synced from sourceCurrentjust now |
| Forks | 4787Synced from sourceCurrentjust now | 3176Synced from sourceCurrentjust now |
| Maintainer | MicrosoftSeeded, unreviewedwritten 1mo ago | deepsetSeeded, unreviewedwritten 1mo ago |
| Open issues | 320Synced from sourceCurrentjust now | 168Synced from sourceCurrentjust now |
| PyPI package | semantic-kernelSynced from sourceCurrentjust now | haystack-aiSynced from sourceCurrentjust now |
| PyPI released | 2026-08-06T09:56:42.518861ZSynced from sourceCurrentjust now | 2026-09-03T09:27:43.312258ZSynced from sourceCurrentjust now |
| Requires Python | >=3.10Synced from sourceCurrentjust now | >=3.10Synced from sourceCurrentjust now |
| PyPI version | 1.44.1Synced from sourceCurrentjust now | 3.1.1Synced from sourceCurrentjust now |
| Repository | https://github.com/microsoft/semantic-kernelSynced from sourceCurrentjust now | https://github.com/deepset-ai/haystackSynced from sourceCurrentjust now |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation just now. 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.
Change the comparison
Remove one, or open the directory to pick a different set. Up to 3 at a time.