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Alternatives

Alternatives to Letta

5 AI Memory Layers rivals, ranked by the same evidence-graded leaderboard — Letta itself ranks #2 with a PA Score of 43/100. Every “beats Letta on” below comes from a judged head-to-head round with cited evidence — see the methodology.

  1. #1Mem0 logo
    Mem0

    Mem0

    PA Score 47/100vs Letta →
    coverage
    43.3/100

    Beats Letta on: Store memories as a knowledge graph of entities and relationships so multi-hop and entity-centric questions are answerable · Download a machine-readable API spec (OpenAPI or equivalent)

  2. #3Airweave logo
    Airweave

    Airweave

    PA Score 40/100vs Letta →
    coverage
    26.0/100

    Beats Letta on: Download a machine-readable API spec (OpenAPI or equivalent) · Subscribe to events via webhooks

  3. #4Zep logo
    Zep

    Zep Software, Inc.

    PA Score 29/100vs Letta →
    coverage
    41.8/100

    Beats Letta on: Store memories as a knowledge graph of entities and relationships so multi-hop and entity-centric questions are answerable · Delete a user's memories on demand — single memory, per-entity, or full erasure — to satisfy privacy requirements

  4. #5Cognee logo
    Cognee

    Topoteretes UG

    PA Score 29/100vs Letta →
    coverage
    35.3/100

    Beats Letta on: Store memories as a knowledge graph of entities and relationships so multi-hop and entity-centric questions are answerable · Delete a user's memories on demand — single memory, per-entity, or full erasure — to satisfy privacy requirements

  5. #6Supermemory logo
    Supermemory

    Supermemory Inc.

    PA Score 29/100vs Letta →
    coverage
    33.9/100

    Beats Letta on: Store memories as a knowledge graph of entities and relationships so multi-hop and entity-centric questions are answerable · Connect off-the-shelf assistants (Claude, ChatGPT, Cursor) to the same memory so every tool I use shares what it knows about me

Adjacent arenas

Top-ranked products from arenas whose story taxonomies overlap AI Memory Layers's — worth a look if your real problem sits next door.

Chroma

Top-ranked in Vector Databases & Memory Stores · PA Score 41/100

shares: Data lifecycle, Pricing plans, Sdk integrations

Flagsmith

Top-ranked in Feature Flags & Experimentation · PA Score 42/100

shares: Deployment self host, Pricing plans

Composio

Top-ranked in MCP Infrastructure & Registries · PA Score 33/100

shares: Deployment self host, Pricing plans

Full leaderboard: AI Memory Layers arena →