HaystackOpen-source framework and enterprise platform for AI agents and RAG applications.
vs
LangSmithAI Agents
Comparison · AI Agents · weekly run Nov 3
Haystack vs LangSmith
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
LangSmith is the stronger AI pick in AI Agents: it has a visibility score of 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 LangSmith if…
- You want the brand AI engines rank higher (3 vs 0)
- You need SOC 2 Type II or HIPAA or GDPR or ISO 27001 (Engine feature) coverage
- strong production observability
- tracing, debugging and response evaluation
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Haystack | LangSmith |
|---|---|---|
| Visibility score | 0% | 3% |
| Change vs last week | New | New |
| Rank in AI Agents | #76 | #31 |
| Share of voice | 0% | 0.9% |
| Mentions this run | 0 | 6 |
| Positive in AI answers | — | 17% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Haystack 0pp · LangSmith 0pp over 0 weekly runs.
Engine by engine
LangSmith leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
HaystackLangSmith
Head to head in AI answers
0 engine answers name both brands
0Haystack ranked higher
0LangSmith ranked higher
Features, pricing & fit
| Dimension | Haystack | LangSmith |
|---|---|---|
| Deployment | Managed cloud, self-hosted, and sovereign or air-gapped environments, including STACKIT for sovereign European cloud | Cloud, Bring Your Own Cloud, and Self-hosted |
| Compliance | SOC 2 Type 2 (vendor claim, not an independent report) | SOC 2 Type II, HIPAA, GDPR, ISO 27001 (Engine feature) |
| Founded | 2018 | — |
| Headquarters | Berlin, Germany | San Francisco, California |
| Employees | 51–200 | — |
| Funding | Round led by Balderton Capital, with GV, Harpoon, System.One and Lunar participating · $46M raised | Series B |
| Best for | Teams building AI agents and RAG applications with Python | — |
Pros and cons
Themes from the AI answers that mention each brand
Haystack
Profile in progress.
LangSmith
- strong production observability
- tracing, debugging and response evaluation
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Haystack vs LangSmith”, https://slateindex.ai/compare/haystack-vs-langsmith, data of Nov 3, 2026. Licence: CC BY 4.0.