SOC 2 compliant agent memory systems

Tier 1 — battle-tested (80)

• Anthropic Claude (foundation models) Frontier foundation model family (Sonnet 4 / Opus 4.5 / Haiku 4.5)

  Claude family of frontier foundation models — Sonnet 4 (workhorse), Opus 4.5 (frontier capability), Haiku 4.5 (fast/cheap). Frontier model used as substrate by Claude Code, Anthropic Memory tool, Cline, Aider, Continue.dev, Cursor, Goose…

• OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) Frontier foundation model family (GPT-5 / GPT-4o / o3 / o4)

  OpenAI's foundation model family — GPT-5 (2025-08 flagship), GPT-4o (multimodal workhorse), o3/o4 reasoning series. Substrate for ChatGPT, the OpenAI API, Microsoft Copilot, Azure OpenAI, and many downstream agents in this catalog (Devin…

• Mem0 Vector + graph + KV (hybrid)

  Universal memory layer for AI agents. Three concurrent stores (vector + graph + KV); LLM-extracted facts; concurrent retrieval via ThreadPoolExecutor.

• Google Gemini 3 family Frontier foundation model family (Gemini 3 Pro / Flash / Nano)

  Google DeepMind's Gemini 3 frontier model family — Gemini 3 Pro (top tier), 3 Flash (fast), 3 Nano (on-device). Substrate for Google Workspace AI, Vertex AI Agent Platform, Gemini Code Assist, Project Mariner, and Project Astra. Multimod…

• Zep & Graphiti Bi-temporal knowledge graph

  Bi-temporal knowledge graph (event time + ingestion time). Strong on chronological reasoning and contradiction tracking. Graphiti is the open-source core.

• Neo4j Property graph + vectors + Aura Agent

  Property graph DB with Cypher; native vector search; Aura Agent + MCP server for graph-as-memory. $100M GenAI investment in 2025.

• Qdrant Vector DB + DBSF + RRF

  Distribution-Based Score Fusion + RRF. Sparse vectors native; filtering via ANN graph modification.

• Pinecone Managed vector DB + cascading retrieval

  Managed vector DB. Cascading sparse + dense + rerank pipeline; pinecone-rerank-v0 .

• Amazon Neptune Analytics Vector + graph in one managed service

  Vector index on graph nodes queryable via openCypher. Mem0 integration GA 2025; Cognee integration for agentic RAG. Combines semantic recall with multi-hop traversal in one managed service.

• Cartesia Sonic Real-time TTS + voice-agent platform (Cartesia)

  Cartesia's Sonic TTS — state-space-model-based voice generation, lowest published TTS latency (~40ms). Cartesia raised $64M Series A Q1 2025 (Index + Lightspeed); founded by Mamba authors. Agent platform layer ('Cartesia Line') wraps Son…

• Chroma Embedded vector DB (Rust core)

  Limited native hybrid (users build RRF custom). Fast Rust core (v2.5).

• Mistral Large 2 / Mixtral family Frontier model family — Mistral Large 2 + Mixtral 8x22B + Mistral Small 3

  French frontier-model lab (Paris). Family includes Mistral Large 2 (123B dense, Jul-2024), Mixtral 8x22B (open-weights MoE), Mistral Small 3 (24B, open-weights Jan-2025), Codestral (code specialist). EU-headquartered alternative to US/Ch…

• Hindsight (Vectorize) Vector + reflection / summarisation

  Standalone memory service from Vectorize. Open source. Biomimetic four-network design (World, Bank, Observation, Opinion). Ships an MCP memory server.

• LanceDB Embedded Arrow-columnar vector DB

  Embedded vector DB (Arrow columnar). RRF reranker. Petabyte-scale on disk.

• Meta Llama 4 family Open-weights frontier model family (Llama 4 Scout / Maverick / Behemoth)

  Meta's Llama 4 family (released 2025-04) — Scout (109B MoE, 17B active), Maverick (400B MoE, 17B active), Behemoth (2T MoE, 288B active; preview). First Llama generation to use mixture-of-experts and to be multimodal-native. Substrate fo…

• MongoDB Atlas Vector Search Vector embedded in document DB

  Agent memory store for both short-term (document) and long-term (vector). LangGraph checkpointer for stateful agents. Vector search extended to Community Edition (Sept 2025).

• Claude Code (Anthropic) Terminal-native agentic coding harness

  Anthropic's official agentic coding CLI — runs Claude as a long-running coding agent in the developer's terminal. Memory layer = CLAUDE.md (project + user scoped), agent skills, MCP servers. Released GA October 2024; widely adopted as th…

• GitHub Copilot (Agent Mode) IDE Copilot extension — chat, completions, Agent Mode

  The original AI coding assistant (Copilot in editor; 2021). 2025 evolved into a full agentic surface: chat, completions, Agent Mode (multi-step), and Copilot Workspace. Backed by Microsoft. Distinct row from Workspace — this row covers t…

• Google DeepMind Gemini Robotics Robotics foundation model from Google DeepMind

  Google DeepMind's Gemini Robotics + Gemini Robotics-ER (Embodied Reasoning) released Mar-2025. VLA models built on Gemini 2.0 backbone. Reference platform: Apptronik Apollo. The DeepMind line of robotics-FM, descendant of earlier RT-1 / …

• Milvus Multi-vector + hybrid + GPU

  Multi-vector columns (10 simultaneous). Native hybrid search (v2.5). CAGRA + Vamana GPU/CPU (v2.6).

• Supermemory Memory graph + extraction + RAG

  Memory engine with API, app, browser extension, and MCP server. Extracts facts, tracks updates, resolves contradictions, auto-forgets expired info. Plugins for Claude Code, OpenCode, OpenClaw, Hermes.

• Vapi Developer platform for AI voice agents (programmable telephony)

  Voice-AI developer platform — STT + LLM + TTS pipelines wired to telephony (Twilio / SIP). Used to build outbound + inbound phone agents at scale. Raised $20M Series A from Bessemer + Y Combinator (Dec 2024) at $130M valuation; revenue r…

• Weaviate Hybrid vector DB + learned ranking

  Hybrid Search 2.0 with learned ranking. BM25 + vector in unified index.

• xAI Grok 4 Frontier foundation model from xAI (Grok 4)

  Elon Musk's xAI frontier model — Grok 4 launched 2025-07. Trained on Colossus (100k+ GPU supercluster in Memphis). Deeply integrated with X/Twitter (real-time tweet data access). Grok 4 Heavy variant for premium tier. No frontier-tier op…

• Abridge Grounded-transcript provenance

  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.

• Acuvity (now Proofpoint) MCP / Shadow-AI runtime enforcement

  Runtime enforcement targeting memory poisoning, unauthorised execution, identity spoofing per the OWASP LLM threat list. Visibility/control over MCP servers and locally-installed AI tools — the infrastructure layer where memory is most e…

• Algolia (NeuralSearch) Neural-hash hybrid (vector + keyword)

  NeuralSearch combines vector + keyword via neural hashing — compresses to 1/10th size while retaining 99% info. AI-powered personalisation + recommendations.

• Alibaba Qwen 3 family Open-weights frontier model family (Qwen 3 dense + MoE; 0.5B–235B)

  Alibaba Cloud's Qwen 3 family (2025-04) — open-weights frontier models from 0.5B to 235B-A22B MoE. Apache 2.0 (most sizes) — broadest open-weights family. Includes Qwen 3 32B dense, Qwen 3 30B-A3B MoE, Qwen 3 235B-A22B MoE. Qwen-Coder, Q…

• Anthropic Auto Dream REM-style sub-agent memory consolidation

  Background sub-agent in Claude Code that periodically scans ~/.claude/projects/<project>/memory/ + recent JSONL transcripts via grep, prunes stale notes, deduplicates, resolves contradictions, converts relative dates to absolute timestam…

• Anthropic Claude Memory File-backed + tool-driven + Auto Dream

  Memory tool API + consumer "Memory" feature + Auto Dream consolidation. Document-as-memory rather than extracted-fact-as-memory.

• Anthropic Computer Use Claude desktop-control capability (Anthropic API)

  Anthropic's API-surface capability that lets Claude control a virtual desktop — see screenshots, type, click. Launched 2024-10 as a public beta. Not a finished IDE itself; it's the substrate that other harnesses (and Anthropic's own Clau…

• ArangoDB Multi-model: graph + doc + KV + vector

  HybridGraphRAG combines vector search, graph traversal, full-text in one AQL query. ArangoGraphML for ML pipelines; LangChain integration.

• ASAPP GenerativeAgent Long-term interaction memory + preference

  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 — prefer…

• Augment Code Real-time semantic Context Engine + curated Agent Memory

  Real-time knowledge graph indexed from connected repos + commit history + CI/CD + tickets + docs. Separate Agent Memory layer (Sept 2025) captures session decisions/corrections/goals as discrete items with developer review/approval UI. M…

• Bland AI Developer platform for AI phone agents (vertically integrated)

  Voice-AI platform with custom STT + LLM + TTS stack ('the whole pipeline'). Raised $40M Series A Apr-2024 (Lightspeed + Anthology). Distinguished by 'pathway' graphs (deterministic call flows) and aggressive outbound-calling positioning.

• Botpress LLMz Vector DB + LLMz engine + KB

  Per-plan vector-DB storage quota + LLMz autonomous engine (in-session working memory) + Knowledge Base (semantic search over uploaded docs). Long-term user memory persists across sessions.

• Browserbase Programmatic session persistence (dev infra)

  Cloud browser infrastructure for AI agents. Headless Chromium sessions with persistent cookies, localStorage, session recording — agent workflows carry state across runs. Memory at the session/automation tier rather than conversational.

• Causaly Persistent causal knowledge graph

  Drug discovery / target identification / causal mechanism tracing. The graph is the memory: 7 years of curated biomedical cause-effect relationships compounding with each new ingestion. Scientific RAG retrieves from a versioned causal su…

• ChatGPT — Codex (cloud agent) OpenAI's ChatGPT-integrated cloud coding agent

  OpenAI's cloud-hosted, asynchronous coding agent surfaced inside ChatGPT — distinct from Codex CLI (terminal) and from the deprecated 2021 Codex API. Released 2025-05. Reads + writes from sandboxed cloud environments; integrates with Git…

• Clarivate Curated bibliographic metadata

  Bibliographic metadata curation (Web of Science, Derwent, Cortellis). Human editorial governance + journal-deindexing. Memory-adjacent — included as a curated-knowledge baseline.

• Claude for Chrome Consumer browser-agent extension (Chrome) — Anthropic

  Anthropic's Chrome extension that lets Claude act inside the user's existing browser (rather than a sandboxed one). Research preview launched August 2025 — limited to Claude Max tier. Distinct from Anthropic Computer Use (which is the AP…

• Cognigy Two-tier short + long-term, shared across agents

  Enterprise contact centre (voice + chat). Short-term covers current session; long-term persists across sessions and is shared by every agent a customer might encounter. Most explicitly engineered memory model in the segment.

• Cognition Devin v2 / Spec Mode Devin successor — autonomous coding agent + spec-mode (cross-listing)

  Cross-listing of Cognition's Devin product framed at the harness level rather than the memory layer. Devin 2.0 (Mar 2025) added cheaper concurrent sessions; Spec Mode (Aug 2025, post-Windsurf-IP acquisition) integrates Windsurf-style spe…

• Cohere Command R+ / Command A Enterprise-focused frontier model family (Command A / Command R+ / Command R7B)

  Toronto-based foundation-model lab (Aidan Gomez, ex-Google Brain 'Attention Is All You Need' co-author). Command family is enterprise / RAG-optimised: Command A (Mar-2025, 111B dense, 256k ctx), Command R+ (104B MoE), Command R7B (smalle…

• Convai (Mimir) 3-tier hierarchical memory + scene awareness

  Mimir hierarchical memory: short-term (verbatim), medium-term (summaries + emotion), long-term (cross-session). Scene awareness layer adds in-engine perception. Unity + Unreal SDKs with real-time voice + lipsync.

• Coveo RAG-as-a-Service via hosted MCP

  RAG-as-a-Service for AWS (Dec 2025) via hosted MCP server grounding Amazon Bedrock agents in enterprise knowledge. Passage retrieval + answer generation + ranked search + fetch in one API.

• Craft AI Block-based docs + AI assistant

  Hierarchical block-based documents + nested pages (no native graph). In-document AI assistant: summarise, rewrite, translate, Q&A over docs, proofread.

• Cursor (IDE) Agentic IDE; Agent Mode + Background Agents (VS Code fork)

  AI-first IDE that forked VS Code; Composer (multi-file edit) and Agent Mode (long-running coding agent) are its flagship surfaces. Memory layer = .cursorrules / Rules; recall via repo-aware Context Engine. Anysphere (parent) raised $900M…

• Databricks Vector Search Storage-optimised + Unity Catalog governance

  Storage-optimised index scaling to billions of vectors. Hosted MCP servers for UC functions, Genie, Vector Search. Agent framework integrates retrieval with Unity Catalog governance.

• Datadog Bits AI Observability AI agent / SRE copilot

  Datadog's AI-assistant for observability — incident summarisation, root-cause hypotheses, runbook automation. Bits AI launched Aug-2023, GA 2024 across the Datadog suite. Datadog parent: $2.7B+ revenue 2024; NASDAQ:DDOG.

• Decagon Cross-channel conversation graph

  Autonomous support agents resolving end-to-end (refunds, cancellations). Channel-agnostic memory: chat → call carries prior context. Agents recognise returning customers and recall prior issues.

• DeepScribe Longitudinal oncology pull-forward

  Specialty-care ambient scribe (oncology focus). Pulls forward prior notes with precise dates; synthesises interval history (what changed since last visit); auto-populates disease-status and treatment-plan context.

• DeepSeek R1 / V3 family Open-weights reasoning-first frontier model family (R1 / V3 / V3.1)

  DeepSeek (Hangzhou-based, Liang Wenfeng founder) — released DeepSeek-V3 671B MoE (37B active) Dec-2024, then R1 reasoning model Jan-2025 that matched o1 at ~3% of inference cost. Caused 'DeepSeek moment' in markets Jan-27-2025 — NVIDIA d…

• Dia (Atlassian) Local-first browser-history + @history queries

  The Browser Company's AI-native browser; acquired by Atlassian for $610M (Sept 2025). Stores summaries and preferences locally; opt-in @history feature references up to 7 days of browsing as context. History/chats/bookmarks encrypted loc…

• Diffbot Auto-extracted KG from web crawl

  Auto-built knowledge graph from web crawl. 1T+ facts, 10B+ entities. GraphRAG-fine-tuned model based on open-source Llama 3.3.

• Drata Compliance automation platform with AI Trust Hub agent

  Founded 2020; compliance automation (SOC 2, HIPAA, GDPR, ISO 27001) with hundreds of pre-built control libraries. $200M Series C Mar-2024 ($2B val; ICONIQ + GGV + Cowboy). Trust Hub launched 2024; AI Trust Hub auto-fills security questio…

• Dynatrace Davis CoPilot GenAI assistant for the Davis AI observability engine

  Dynatrace launched Davis CoPilot Sep-2023 — GenAI conversational interface on top of the (deterministic) Davis AI engine, the largest causal-AI observability deployment. Dynatrace parent: NYSE:DT, $1.4B+ revenue.

• e2b Code-execution sandbox infrastructure for AI agents (firecracker microVMs)

  e2b provides secure, ephemeral sandboxes (Firecracker microVMs) for AI agent code execution. Each sandbox spins up in <200ms with full Linux environment, Python/Node/etc preinstalled. Substrate for code-agent products including Anthropic…

• Elasticsearch / OpenSearch Mature hybrid search

  Mature hybrid (BM25 + vector) implementations. RRF + weighted combination. Elastic ELSER sparse model.

• ElevenLabs Conversational AI Voice-agent platform from a TTS-first vendor (ElevenLabs)

  ElevenLabs launched Conversational AI Nov-2024 — STT + LLM + their own market-leading TTS in one pipeline. Combines vendor's voice cloning + multilingual TTS strengths with hosted call orchestration. ElevenLabs raised $180M Series C Jan-…

• Filevine LOIS Whole-matter context as live LLM input

  Embedded in case-management platform. Holds full scope of every matter — deadlines, billing, discovery, communications, negotiation history — as live context for every query. Case data is the context, not a separate retrieval corpus.

• Galileo (galileo.ai) Real-time intent / belief drift detection

  Treats memory as first-class in multi-agent tracing. Luna-2 SLMs (3B / 8B) scan every interaction for intent drift and belief drift; 20+ checks at sub-200ms latency. Catches when agent A's view of the world splits from teammate B's. Open…

• Gemini Enterprise Agent Platform Memory Bank (rebrand of Vertex AI Memory Bank) Long-running agent memory with continuous event-streaming consolidation

  GA at Google Cloud Next 2026 (2026-04-22). Vertex AI rebranded as Gemini Enterprise Agent Platform; Memory Bank now "Agent Platform Memory Bank" with new continuous event-streaming + automated memory generation triggered by configurable …

• GitHub Copilot Workspace Agentic IDE — GitHub-hosted plan/code/test workspace

  GitHub's hosted agentic workspace — given an issue, generates a spec, plan, and PR. Preview launched April 2024; rebranded "GitHub Copilot Coding Agent" + "Copilot Agent Mode" in 2025 with broader GA. Backed by Microsoft Azure OpenAI + A…

• Glean Enterprise search + per-user KG

  Enterprise search with 100+ connectors. Personalised per-user knowledge graph. No governance layer.

• Google Gemini Memory Personal Context + Personal Intelligence

  Personal Context setting + Personal Intelligence packing. Memory import from ChatGPT/Claude (Mar 2026).

• Granola Mac/iOS meeting notepad — system-audio tap

  Mac/iOS app (no hardware). Captures meeting audio via system-audio tap (no bot joining); generates notes from your shorthand + audio. Local audio processing claim; cloud for summaries. Enterprise tier opts out of model training.

• Harvey Memory 4-tier matter / firm / client-institution memory

  Personal lawyer memory + matter memory + institutional firm memory + client-institution memory. Opt-in at user level with admin kill-switches and ethical-wall controls. Announced Jan 2026.

• HiddenLayer AISec Platform 2.0 Model Genealogy + AIBOM (supply-chain layer)

  Targets the supply-chain / lineage layer rather than runtime memory writes. Model Genealogy tracks training/fine-tuning/modification history — catches poisoning baked in during training. AIBOM generates auditable inventory of model compo…

• Hippocratic AI Polaris Longitudinal multi-call patient memory store

  Patient-conversation / chronic-care staffing model. HIPAA-compliant Memory Store holds non-EHR salient facts from prior calls, persists across engagements, explicitly not used for model training. Shifts from transactional call-handling t…

• HubSpot Breeze AI Agents AI agents for HubSpot Smart CRM (Breeze)

  HubSpot Breeze (launched Sep-2024) is the AI brand spanning Breeze Copilot (assistant) + Breeze Agents (autonomous content/prospecting/social/customer agents). HubSpot parent: NYSE:HUBS, $2.6B+ revenue 2024.

• Hugging Face LeRobot OSS robotics platform on HuggingFace (datasets + models + policies)

  Hugging Face's open-source robotics platform — datasets, baselines, training code for imitation learning + diffusion policy + ACT. Launched May 2024; growing rapidly with community contributions (HopeJR, SO-100 arms). LeRobot is the de-f…

• Hume EVI Empathic voice-AI platform (voice + emotion)

  Hume's Empathic Voice Interface (EVI) — voice agent platform with vocal-affect understanding. Hume raised $50M Series B Mar-2024 (EQT). Distinguished from pure LLM voice agents by emotion/prosody modelling; uses Hume's proprietary speech…

• Inworld AI Long-term character memory + Character Brain

  Leading purpose-built NPC engine. Long-Term Memory (named feature) stores interaction facts across sessions; surfaces them contextually. Character Brain coordinates multiple ML models. Personality defined by trait axes, backstory, goals,…

• Jamba (AI21 Labs) SSM-Transformer hybrid + 256K KV-bypass context

  Israeli production model. Interleaves Mamba SSM layers with Transformer attention (1:7 ratio) + MoE blocks every 2 layers. SSM layers maintain fixed-size recurrent hidden state — compressed long-context memory bypassing growing KV cache.

• JetBrains AI Assistant IDE AI assistant — chat, completions, AI actions (JetBrains)

  JetBrains' in-IDE assistant integrated across IntelliJ, PyCharm, GoLand, WebStorm, Rider, etc. Multi-model: OpenAI, Anthropic, Google, local. Differentiated by its deep IDE-API integration — refactorings, run configs, debugger context.

• Kiro Agentic IDE; spec-driven dev (Requirements → Design → Tasks)

  Spec-driven agentic IDE from AWS — preview launch July 2025. Codifies the AI-coding workflow as Requirements / Design / Tasks files generated before code ("specs"); also persists "steering" files and Hooks. Built as a VS Code fork; runs …

• Lakera Guard / Lakera Red Real-time prompt-injection + poisoning screen

  Screens every prompt, response, and retrieved document for indirect prompt injection — primary vector for memory poisoning. Treats memory as untrusted: anything written to or read from memory is adversarial until proven clean. Lakera Red…

• Langfuse Memory ops as named spans + Agent Graphs

  Memory module reads/writes captured as named spans. Trace Log View concatenates every agent step including memory ops. Agent Graphs (GA 2025) infer graph structure from observation nesting; session-level replay tracks how memory state ev…

• LangSmith Memory mutations as distinct span types

  Memory reads, vector DB retrievals, state changes are distinct span types in traces. RAG eval separates retrieval quality (context precision) from generation quality (faithfulness). Dataset versioning guards against eval drift.