Grok Memory (xAI) alternatives

Extracts and persists facts from past conversations; applies them to future responses. Per-memory deletion UI; user can also clear all. Announced by xAI's official Grok account on 2025-04-17 ('Grok now remembers your conversations'). Full Grok Memory (xAI) record →

  1. 1 Google Gemini Memory Platform-provider memory

    also in Platform-provider memory · same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Grok Memory (xAI) →

  2. 2 Meta AI Memory Platform-provider memory

    also in Platform-provider memory · same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Grok Memory (xAI) →

  3. 3 Mistral Le Chat — Memories (now Vibe) Platform-provider memory ⚠ renamed — now Vibe

    also in Platform-provider memory · same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with Grok Memory (xAI) →

  4. 4 OpenAI ChatGPT Memory Platform-provider memory

    also in Platform-provider memory · same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Grok Memory (xAI) →

  5. 5 Perplexity Memory Platform-provider memory

    also in Platform-provider memory · same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Grok Memory (xAI) →

  6. 6 Letta / MemGPT Dedicated memory layers

    same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 3.7k released 2026-10-29 Apache-2.0 Compare with Grok Memory (xAI) →

  7. 7 CrewAI Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 51k released 2026-10-14 MIT Compare with Grok Memory (xAI) →

  8. 8 LangMem (LangChain) Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 1.6k released 2025-10-27 MIT Compare with Grok Memory (xAI) →

Ranked by shared memory design (storage, retrieval, conflict handling, memory unit), same section and shared must-haves (open source, self-hosting, MCP), with adoption as a tie-breaker. ✓ confirmed · — no · ? not in the catalog yet. Want picks for your own requirements? Use the chooser. Checking a whole project? Check your stack.