Grok Memory (xAI) vs Meta AI Memory
Grok Memory (xAI) vs Meta AI Memory: side-by-side comparison of two platform-provider memory systems — architecture, taxonomy, license, pricing, MCP/A2A support, and direct edges.
Cost & capability
| Grok Memory (xAI) | Meta AI Memory | |
|---|---|---|
| Capability band | frontier | frontier |
| Capability composite | 80 | 78 |
| Cost tier | free | mid |
| $/Mtok input | 0 | — |
| $/Mtok output | 0 | — |
| Use cases | Memory Augmented Chat, Long Running Session | Memory Augmented Chat, Long Running Session |
Where they differ (9)
Rows where both sides have data and the values disagree — the shortlist of dimensions that actually distinguish these two systems.
| Grok Memory (xAI) | Meta AI Memory | |
|---|---|---|
| Capability composite | 80 | 78 |
| Cost tier | free | mid |
| Type | Preference-distillation + user-deletable | Cross-platform via Accounts Center |
| Created | 2025-02-17 (Grok 3 launch with memory) | 2025-01-27 (memory announced for Meta AI on Facebook, Messenger and WhatsApp) |
| Pricing | Free; The X Subscription (Grok + Cursor + X): Plus $8/mo, Premium $30/mo, Super $100/mo, Ultra $200/mo (annual discounts; team seats on Premium/Super/Ultra); existing SuperGrok plans continue | Meta AI free; Meta One Core $7.99/mo and Premium $19.99/mo add more AI generation capacity (memory not tier-gated per announcement) |
| Funding | xAI raised $20B Series E (Jan 2026; Valor, StepStone, Fidelity, QIA, Nvidia, Cisco), ~$230B valuation; merged into SpaceX (announced 2026-02-02, combined ~$1T) | parent is public |
| Backend storage | custom (xAI-managed) | custom (Meta-managed) |
| Optimised for | preference distillation + user-deletable | cross-platform Meta family persistence |
| Anti-fit | not for enterprise programmatic use | not for enterprise / programmatic; not for users who want segregated cross-app data |
At a glance
| Grok Memory (xAI) | Meta AI Memory | |
|---|---|---|
| Section | Platform-provider memory | Platform-provider memory |
| Tier | T1 | T1 |
| Type | Preference-distillation + user-deletable | Cross-platform via Accounts Center |
| Created | 2025-02-17 (Grok 3 launch with memory) | 2025-01-27 (memory announced for Meta AI on Facebook, Messenger and WhatsApp) |
| Pricing | Free; The X Subscription (Grok + Cursor + X): Plus $8/mo, Premium $30/mo, Super $100/mo, Ultra $200/mo (annual discounts; team seats on Premium/Super/Ultra); existing SuperGrok plans continue | Meta AI free; Meta One Core $7.99/mo and Premium $19.99/mo add more AI generation capacity (memory not tier-gated per announcement) |
| Funding | xAI raised $20B Series E (Jan 2026; Valor, StepStone, Fidelity, QIA, Nvidia, Cisco), ~$230B valuation; merged into SpaceX (announced 2026-02-02, combined ~$1T) | parent is public |
| Backend storage | custom (xAI-managed) | custom (Meta-managed) |
| Deployment | Managed-only | Managed-only |
| Multi-tenancy | hard-isolation | hard-isolation |
| MCP | searched not found | searched not found |
| A2A | not supported | not supported |
| OpenTelemetry | no — consumer product | no — consumer product |
| Optimised for | preference distillation + user-deletable | cross-platform Meta family persistence |
| Anti-fit | not for enterprise programmatic use | not for enterprise / programmatic; not for users who want segregated cross-app data |
Taxonomy
| Axis | Grok Memory (xAI) | Meta AI Memory |
|---|---|---|
| storage | kv | kv |
| retrieval | injection | injection |
| persistence | long-term | long-term |
| update | extraction | extraction |
| unit | fact | fact |
| governance | user-controllable | user-controllable |
| conflict | llm-arbitrate | llm-arbitrate |
Pros & cons
Grok Memory (xAI)
Pros: Tied to X timeline data — a corpus no other vendor has access to.
Cons: Privacy framing is weakest of the major platforms; corpus quality varies sharply by user activity.
Meta AI Memory
Pros: Native delivery via WhatsApp / Instagram / Messenger reaches billions at the app level.
Cons: Non-developer surface only; no API; cross-product data flow remains a privacy concern.