Replika
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.
Active · Verified 2026-10-22 · fresh as of 2026-10-22 · 35 cited facts, 14 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Memory bank + diary entries vendor fix
- Tier
- T2
- Latest release
- not applicable — not OSS fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- Classic: Free/Pro/Ultra/Platinum; Replika 2.0: Plus and Max plans (e.g. ~£59–66/yr in UK, Aug 2026) third-party fix
- Funding
- $6M total Series A-2 · 2017-11 third-party fix
- Freshness
- 2026-10-22 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial third-party fix
Memory taxonomy
- storage
- vector
- retrieval
- similarity
- persistence
- lifelong
- update
- extraction
- unit
- episode
- governance
- opaque
- conflict
- append
When to use
Optimised for: character consistency + narrative continuity + low-latency
Anti-fit: not for non-character / non-narrative use cases
Pros & cons
Pros
Most users in companion-AI category; long-running relationship memory across years for many users.
Cons
Companion-product scope; recent strategic pivots have introduced uncertainty for power users.
Claims & capabilities
Millions of users globally. iOS / Android / Oculus VR.
Technical surface
- API surface
- searched not found
- Backend storage
- searched not found
- Deployment
- Managed-only
- Embedding model
- searched not found
- Multi-tenancy
- searched not found
- MCP
- no MCP support advertised — vertical product, no MCP server / client integration documented
- A2A
- no A2A protocol support advertised — vertical product, no A2A integration documented
- OpenTelemetry
- no OpenTelemetry integration advertised — vendor logs/observability not publicly documented
Alternatives to Replika → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other vertical / domain-specific ai memory in the catalog, ranked by inbound references.
- Inworld AI T1
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.
- NVIDIA ReMEmbR T3
Builds long-horizon memory by captioning video segments with VILA, storing captions with timestamps + 3D position coordinates in MilvusDB. At query time, LLM iterates retrieval across text, time, and position modalities. Deployed on Nova Carter robot (Jetson Orin).
- Abridge T1
Clinician-assist ambient documentation. Source mapping: every AI-generated summary element traced back to the source utterance. Audit-and-trust layer over episodic memory. Built on proprietary 1.5M+ medical-encounter dataset.
- ASAPP GenerativeAgent T1
Treats memory as first-class architecture. Captures the digital footprint of every interaction; retrieves preference and history at engagement time. Public example: airline knowing a frequent flyer wants aisle seats with her son — preference-aware, not just history-lookup.
- BenevolentAI T1
Taken private: merged into Osaka Holdings (renamed BenevolentAI S.A.) and delisted from Euronext Amsterdam 2025-03-13. Target identification / drug repurposing / mechanism tracing. 85+ data sources, petabyte-scale, rebuilt every few weeks. Wet-lab results re-enter the graph and shift downstream predictions — institutional experimental memory closing a feedback loop. As of Oct 2026 benevolent.com leads with Qor, powered by BenevolentAI, a life-science intelligence service for biopharma decision makers and consultancies. Qor (qor.one) is a continuously updated decision-intelligence service built on BenevolentAI's knowledge graph and reasoning methods: it tracks evidence on an asset or indication (competitive position, rival readouts, comparable deals), source-verifies each claim and flags when an earlier conclusion stops holding. It targets biotech teams and life-science consultancies.
- Causaly T1
Agentic AI platform for life sciences: orchestrated scientific agents over a curated biomedical knowledge graph (plus Bio Graph and Pipeline Graph), an evidence-retrieval system and an enterprise data fabric over literature, trials and patents.
Sources (34 cited facts, 14 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Memory bank + diary entries vendor
- What it does & what's distinct Long-running AI companion (Luka, Inc., 2017). Replika 2.0 (2026) is a full rebuild with … vendor
- Claims / benefits Millions of users globally. iOS / Android / Oculus VR. vendor
- Modalities text vendor
- Created 2017-11 third-party
- Funding $6M total Series A-2 · 2017-11 third-party
- Customers / scale 11-50 ppl no data (consumer app) third-party
- Pricing Classic: Free/Pro/Ultra/Platinum; Replika 2.0: Plus and Max plans (e.g. ~£59–66/yr in UK… third-party
- Compliance GDPR issues: €5M fine by Italy's Garante for inadequate privacy notices and no age verif… third-party
- Data handling Conversation data stored server-side; GDPR second investigation ongoing re training meth… vendor
- Deployment Managed-only vendor
- HQ US third-party
- Founders / pedigree Eugenia Kuyda (founder/CEO) third-party
- Memory volume / scale internal — undisclosed (millions of users globally) vendor
- Namespace primitives per-user vendor
- Contradiction handling always append (no resolution) vendor
- Validated verticals gaming (AAA + indie), interactive narrative, AI companions vendor
- Time to running <10min (SDK download / hosted API) vendor
- Anti-fit not for non-character / non-narrative use cases vendor
- Optimised for character consistency + narrative continuity + low-latency vendor
- Adjacent infrastructure requires game engine integration (Unity / Unreal); BYO LLM vendor
- Pros Most users in companion-AI category; long-running relationship memory across years for m… vendor
- Cons Companion-product scope; recent strategic pivots have introduced uncertainty for power u… vendor
- Project & sources replika.ai vendor
- cost-input-usd-per-mtok 0 third-party
- cost-output-usd-per-mtok 0 third-party
- cost-tier free third-party
- cost-pricing-model free-tier third-party
- cost-last-verified 2026-06-29 third-party
- adoption-accelerator yc-w15 third-party
- architecture-deployment-locus cloud vendor
- licensing-bucket commercial third-party
- positioning-platform-vs-product product vendor
- taxonomy-three-layer-rollup agent-infra repo
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)