Open-Source Mem0 Alternative (2026, Memory)
Identifying Mem0 · Mark source
This hub lists open agent-memory tools people compare with Mem0-class memory layers. Mem0 is named only to identify that product class (hosted mem0.ai plus the Apache-2.0 mem0ai/mem0 repo). We copy licenses and star counts from official hosts. We do not rank recall quality against Mem0.
How we pick
- Official GitHub or Hugging Face host we could open.
- License copied from that LICENSE file or card.
- Agent memory store, writer, or bank — not a chat UI and not document RAG.
- No unsourced “beats Mem0” claims.
Comparison
| Name | License | Stars / likes | Platforms | Runs locally | Job |
|---|---|---|---|---|---|
| Hindsight | MIT | 56,654 | Linux, macOS, Windows, Docker, Kubernetes, Python, Node.js, Go | Yes | See page |
| Hy-Memory | Apache-2.0 | See page | See model card | Yes | See page |
Lead row: Hindsight (vectorize-io/hindsight, MIT). Related writer weights: Hy-Memory (Tencent 30B-A3B; the card names Mem0 as a harness). Document RAG stays on Notion AI alternatives (RAGFlow). Chat UIs stay on ChatGPT alternatives. Coding agents stay on Claude Code alternatives and Cursor alternatives.
Sourced snapshot (2026-10-31)
| Field | Mem0 (identifies the class) | Hindsight | Hy-Memory |
|---|---|---|---|
| Host | github.com/mem0ai/mem0; mem0.ai | github.com/vectorize-io/hindsight | huggingface.co/tencent/Hy-Memory-30B-A3B |
| Stars / likes | 68,118 stars / 8,077 forks | 56,654 stars / 6,813 forks | 188 HF likes (2026-10-19); 779 GitHub stars |
| License | Apache-2.0 (LICENSE file) | MIT (LICENSE file) | Apache-2.0 (card + GitHub LICENSE) |
| Created | 2023-06-20 | 2025-10-30 | 2026-10-15 |
| Last push / check | 2026-10-30T21:36:23Z | 2026-10-30T23:40:43Z | 2026-10-18 (repo check 2026-10-19) |
| Job | Memory layer for agents (vendor homepage) | retain / recall / reflect, banks | Memory writer MoE (~30B / 3B) |
| Quality vs Mem0 | n/a (the named class) | Not independently tested | Not independently tested |
Mem0’s homepage title (opened 2026-10-31): “Mem0 - AI Memory Layer for your Agents & Apps.” GitHub description: “The Memory Layer for AI Agents.” Those sentences identify the search. We do not copy Mem0 pricing into a quality table.
Why Hindsight is on a Mem0 hub
Searchers type “open source Mem0 alternative” when they want an auditable memory service they can point at their own agents. The open artifact we fully sourced on 2026-10-31 for that job is Hindsight: MIT, 56,654 stars, v1.1.0, retain / recall / reflect over named banks.
Mem0 itself also publishes Apache-2.0 code. Listing Hindsight here is not a claim that Mem0 is closed, and not a rank of the two codebases.
How to choose
- Need a MIT memory server (Docker / pip / Helm, banks + retain/recall/reflect): Hindsight.
- Need a 30B-A3B writer model that can update an external bank (Mem0 named on the card): Hy-Memory.
- Need document RAG, not agent memory: RAGFlow on Notion AI alternatives.
- Need a chat model to attach: ChatGPT alternatives (Nemotron 3.5 Bolt, LFM3-1.7B, LFM3).
- Need embeddings rather than a memory bank: OpenAI embeddings alternatives — EmbeddingGemma 2 vs BGE-M3.
See also AI Chat & Agents and closed LLM APIs.
Listed options
Hindsight
MIT agent memory that learns — retain, recall, reflect, and banks. Not a chat model.
Hy-Memory
Tencent Hunyuan memory-writer MoE (30B-A3B) plus Hy-Memory SDK and MemHub for agent memory.
FAQ
Is there a free open-source Mem0 alternative?
Lead row as of 2026-10-31: Hindsight (vectorize-io/hindsight) is MIT with 56,654 GitHub stars, last push 2026-10-30, release v1.1.0 — retain / recall / reflect over memory banks. Mem0’s own GitHub (mem0ai/mem0) is also Apache-2.0 (68,118 stars, last push 2026-10-30). This hub does not rank those two implementations.
Does Hindsight match Mem0 quality?
We have no sourced bake-off. README LongMemEval claims stay vendor. This page is product-class identification, not a ranking.
Why is Hy-Memory listed?
Hy-Memory is Tencent’s 30B-A3B memory-writer model plus SDK. Its card names Mem0 as one external harness the writer can update. It is not a Mem0 clone and not a drop-in memory server.
Is this the same as Notion AI or RAGFlow?
No. Notion AI alternatives list document RAG engines (RAGFlow, AnythingLLM). Agent memory banks are a different job. See RAGFlow on the Notion AI hub.
Sources & verification
- https://github.com/mem0ai/mem0
- https://github.com/mem0ai/mem0/blob/main/LICENSE
- https://mem0.ai
- https://github.com/vectorize-io/hindsight
- https://github.com/vectorize-io/hindsight/blob/main/LICENSE
- https://hindsight.vectorize.io/
- https://huggingface.co/tencent/Hy-Memory-30B-A3B
- https://github.com/Tencent-Hunyuan/Hy-Memory
License notes are not legal advice. Read the original LICENSE. Trademark & disclaimer.