HaystackOpen-source framework and enterprise platform for AI agents and RAG applications.
vs
Semantic KernelOpen-source SDK for adding AI models to C#, Python, and Java applications.
Comparison · AI Agents · weekly run Nov 3
Haystack vs Semantic Kernel
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Haystack is the stronger AI pick in AI Agents: it has a visibility score of 0 versus 0 for Semantic Kernel.
Choose Haystack if…
- You need a self-hosted or on-premises option
- You need SOC 2 Type 2 (vendor claim, not an independent report) coverage
Choose Semantic Kernel if…
- You prefer a larger, established vendor (5,000+ employees)
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Haystack | Semantic Kernel |
|---|---|---|
| Visibility score | 0% | 0% |
| Change vs last week | New | New |
| Rank in AI Agents | #76 | #80 |
| Share of voice | 0% | 0% |
| Mentions this run | 0 | 0 |
| Positive in AI answers | — | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Haystack 0pp · Semantic Kernel 0pp over 0 weekly runs.
Engine by engine
Haystack leads on 0 of 3 engines
ChatGPT
AI Mode
Perplexity
HaystackSemantic Kernel
Head to head in AI answers
0 engine answers name both brands
0Haystack ranked higher
0Semantic Kernel ranked higher
Features, pricing & fit
| Dimension | Haystack | Semantic Kernel |
|---|---|---|
| Deployment | Managed cloud, self-hosted, and sovereign or air-gapped environments, including STACKIT for sovereign European cloud | Self-managed or Azure |
| Compliance | SOC 2 Type 2 (vendor claim, not an independent report) | — |
| Founded | 2018 | 2023 |
| Headquarters | Berlin, Germany | Redmond, Washington |
| Employees | 51–200 | 5,000+ |
| Funding | Round led by Balderton Capital, with GV, Harpoon, System.One and Lunar participating · $46M raised | — |
| Best for | Teams building AI agents and RAG applications with Python | Developers adding AI models to C#, Python, or Java applications |
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Haystack vs Semantic Kernel”, https://slateindex.ai/compare/haystack-vs-semantic-kernel, data of Nov 3, 2026. Licence: CC BY 4.0.