Inworld AI alternatives

Formerly an NPC character engine with named Long-Term Memory; now sells realtime voice models (TTS-2, STT-1, speech-to-speech) and OpenAI-compatible open-model inference. Character/NPC memory is no longer the headline product. Full Inworld AI record →

  1. 1 ChatGPT Study Mode Vertical / domain-specific AI memory

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

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

  2. 2 FutureHouse Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector, graph) · same retrieval (similarity, graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also offered managed

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

  3. 3 Mem0 Dedicated memory layers

    same storage (vector, graph) · same retrieval (similarity, graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (episode, fact) · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 67k released 2026-09-25 Apache-2.0 Compare with Inworld AI →

  4. 4 Mem0 Security / OpenMemory Memory governance, privacy & safety

    same storage (vector, graph) · same retrieval (similarity, graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 67k released 2026-09-25 Apache-2.0 Compare with Inworld AI →

  5. 5 Eve — Shared Firm Knowledge + Auditor Vertical / domain-specific AI memory

    also in Vertical / domain-specific AI memory · same storage (vector, graph) · same retrieval (similarity, graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (fact)

    OSS ? Self-host ? Managed ? MCP ? Compare with Inworld AI →

  6. 6 Official MCP Memory server Claude Code memory mechanisms

    same storage (graph) · same retrieval (graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also self-hostable

    OSS ✓ Self-host ✓ Managed — MCP ✓ ★ 90k released 2026-08-31 Apache-2.0 AND MIT (new contributions… Compare with Inworld AI →

  7. 7 Hindsight MCP Claude Code memory mechanisms

    same storage (graph) · same retrieval (graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (episode, fact) · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 45k released 2026-10-21 MIT Compare with Inworld AI →

  8. 8 Cognee MCP Claude Code memory mechanisms

    same storage (graph) · same retrieval (graph-traversal) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 31k released 2026-10-16 Apache-2.0 Compare with Inworld AI →

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.