Replika alternatives

Long-running AI companion (Luka, Inc., 2017). Replika 2.0 (2026) is a full rebuild with a new memory architecture, 3D avatars and voice/video calls; users report the new segmented, recency-biased memory losing some prior details. Classic app remains. Full Replika record →

  1. 1 NVIDIA ReMEmbR Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector) · same retrieval (similarity) · same conflict handling (append) · same memory unit (episode)

    OSS — Self-host ✓ Managed — MCP ? ★ 359 Custom Compare with Replika →

  2. 2 π0.5 (Physical Intelligence) Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector) · same retrieval (similarity) · same conflict handling (append) · same memory unit (episode) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ? ★ 13k Apache-2.0 (openpi repo; repo also ships a… Compare with Replika →

  3. 3 smolagents Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same conflict handling (append) · same memory unit (episode) · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 29k released 2026-05-29 Apache-2.0 Compare with Replika →

  4. 4 ASAPP GenerativeAgent Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector) · same retrieval (similarity, injection) · same memory unit (episode, fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Replika →

  5. 5 Convai (Mimir) Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector, kv) · same retrieval (similarity, injection) · same memory unit (episode, fact) · also offered managed

    OSS ? Self-host ✓ Managed ✓ MCP ? Compare with Replika →

  6. 6 Friend Voice-first / wearable AI memory

    same storage (vector) · same retrieval (similarity) · same conflict handling (append) · same memory unit (episode) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Replika →

  7. 7 Hippocratic AI Polaris Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector) · same retrieval (similarity, injection) · same memory unit (episode, fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Replika →

  8. 8 Cresta Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector, kv) · same retrieval (similarity, injection) · same memory unit (episode, fact) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Replika →

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.