Haystack by deepset vs MemGPT
Side-by-side from the Top 11 ranking of 11 Best AI Agent Builder Platforms 2026 — LangChain, CrewAI & 9 Rivals Ranked, No Paid Listings. Last verified May 31, 2026.
The short answer
Haystack by deepset ranks higher on Top 11 (#6 vs #11) for Developers building autonomous AI agents and workflows. A robust, pipeline-centric framework for building scalable enterprise RAG agents.
At a glance
| Haystack by deepset | MemGPT | |
|---|---|---|
| Top 11 rank | #6 / 11 Best AI Agent Builder Platforms 2026 — LangChain, CrewAI & 9 Rivals Ranked, No Paid Listings | #11 / 11 Best AI Agent Builder Platforms 2026 — LangChain, CrewAI & 9 Rivals Ranked, No Paid Listings |
| Score (out of 9.4) | 8.2 | 7.1 |
| Best for | Enterprise-grade RAG & search agents | Agents with persistent, long-term memory |
| Pricing | Free (Open Source) + Enterprise Edition | Free (Open Source) |
| HQ | Berlin, Germany | Berkeley, USA |
| Founded | 2018 | 2023 |
Haystack by deepset
A robust, pipeline-centric framework for building scalable enterprise RAG agents.
haystack.deepset.ai/MemGPT
A novel technique for giving agents persistent, long-term memory beyond context windows.
memgpt.ai/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.