HaystackOpen-source framework and enterprise platform for AI agents and RAG applications.
vs
Microsoft Agent 365Control plane to discover, govern and secure AI agents in Microsoft 365
Comparison · AI Agents · weekly run Nov 3
Haystack vs Microsoft Agent 365
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Microsoft Agent 365 is the stronger AI pick in AI Agents: it has a visibility score of 0.3 versus 0 for Haystack.
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 Microsoft Agent 365 if…
- You want the brand AI engines rank higher (0.3 vs 0)
- You prefer a larger, established vendor (5,000+ employees)
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Haystack | Microsoft Agent 365 |
|---|---|---|
| Visibility score | 0% | 0.3% |
| Change vs last week | New | New |
| Rank in AI Agents | #76 | #72 |
| Share of voice | 0% | 0.1% |
| Mentions this run | 0 | 1 |
| 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 · Microsoft Agent 365 0pp over 0 weekly runs.
Engine by engine
Microsoft Agent 365 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
HaystackMicrosoft Agent 365
Head to head in AI answers
0 engine answers name both brands
0Haystack ranked higher
0Microsoft Agent 365 ranked higher
Features, pricing & fit
| Dimension | Haystack | Microsoft Agent 365 |
|---|---|---|
| Deployment | Managed cloud, self-hosted, and sovereign or air-gapped environments, including STACKIT for sovereign European cloud | Managed through the Microsoft 365 admin center |
| Compliance | SOC 2 Type 2 (vendor claim, not an independent report) | — |
| Founded | 2018 | 2025 |
| 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 | — |
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Haystack vs Microsoft Agent 365”, https://slateindex.ai/compare/haystack-vs-microsoft-agent-365, data of Nov 3, 2026. Licence: CC BY 4.0.