HaystackOpen-source framework and enterprise platform for AI agents and RAG applications.
vs
MastraTypeScript AI Framework for Agents and Apps
Comparison · AI Agents · weekly run Nov 3
Haystack vs Mastra
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Mastra is the stronger AI pick in AI Agents: it has a visibility score of 1.2 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
- You prefer a larger, established vendor (51–200 employees)
Choose Mastra if…
- You want the brand AI engines rank higher (1.2 vs 0)
- Type-safe, production-grade application code
- Suited to serious production systems
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Haystack | Mastra |
|---|---|---|
| Visibility score | 0% | 1.2% |
| Change vs last week | New | New |
| Rank in AI Agents | #76 | #56 |
| Share of voice | 0% | 0.5% |
| Mentions this run | 0 | 3 |
| Positive in AI answers | — | 100% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Haystack 0pp · Mastra 0pp over 0 weekly runs.
Engine by engine
Mastra leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
HaystackMastra
Head to head in AI answers
0 engine answers name both brands
0Haystack ranked higher
0Mastra ranked higher
Features, pricing & fit
| Dimension | Haystack | Mastra |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | Free; paid from $250 / mo |
| Free plan | — | Yes |
| Deployment | Managed cloud, self-hosted, and sovereign or air-gapped environments, including STACKIT for sovereign European cloud | Self-hosted on any Node.js-compatible environment, or hosted on Mastra Cloud and Mastra Platform. |
| Compliance | SOC 2 Type 2 (vendor claim, not an independent report) | — |
| Support | — | Shared Slack support channel (Enterprise), Dedicated support engineer (Enterprise), SLA support 8-5 Monday-Friday, 8am-6pm PST |
| Founded | 2018 | 2024 |
| Headquarters | Berlin, Germany | San Francisco |
| Employees | 51–200 | 11–50 |
| Funding | Round led by Balderton Capital, with GV, Harpoon, System.One and Lunar participating · $46M raised | Series A · $35M raised |
| Best for | Teams building AI agents and RAG applications with Python | Developers and teams building AI agents in TypeScript and JavaScript |
Plans side by side
Haystack
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Haystack
Profile in progress.
Mastra
- Type-safe, production-grade application code
- Suited to serious production systems
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Haystack vs Mastra”, https://slateindex.ai/compare/haystack-vs-mastra, data of Nov 3, 2026. Licence: CC BY 4.0.