Agentmemory vs Voyage AI

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-18
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At a glance

DimensionAgentmemoryVoyage AI
PricingFree (open-source)Contact sales (paid)
Primary FunctionPersistent memory for AI coding agentsDomain-specialized embedding & reranker for RAG
DeploymentSelf-hosted (Node.js, no external DB)Cloud API (managed)
Key FeatureTriple-stream retrieval (BM25 + vector + KG)Domain-specific models (finance, legal, code)
Best ForDevelopers using Claude Code, Cursor, etc.Enterprise RAG on specialized domains
Latest NewsTransitioning from demo to production infrastructure (2026-06-29)No recent news captured

Agentmemory is the no-brainer choice for developers needing persistent agent memory — it's free, self-hosted, and integrates directly with coding agents like Claude Code. Voyage AI wins if you need high-accuracy embeddings for domain-specific RAG (finance, legal), but its enterprise pricing and lack of transparency make it unsuitable for smaller teams. Choose by need: agent memory vs. search retrieval.

Agentmemory
Agentmemory

Open-source memory runtime that gives coding agents persistent recall between sessions, stored on your machine.

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Voyage AI
Voyage AI

Voyage AI delivers domain-tuned embedding models and rerankers for high-precision RAG retrieval

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Pricing
Free
Paid
Plans
$0/mo
Consumption-based pricing (rates not published on page)
Popularity
27 views
7.4k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
CLIPluginAPI
WebAPI
Categories
🧠 Agent Memory & Runtimes🔌 MCP Servers & Agent Tooling
🗄️ Vector Databases & Retrieval
Features
Auto-capture hooks fire on prompts and tool calls into a local server on 127.0.0.1:3111
Restart-safe capture: events spool to disk if the server is down (v0.9.30)
Dual indexing: BM25 terms for exact words plus local vectors for meaning
Local embeddings that work with no API key
Session-end consolidation collapses related observations into one linked memory
Hybrid recall in 14 ms median over BM25, local vectors and the knowledge graph
95.2% recall@5 on LongMemEval-S (vendor-run benchmark)
About 92% fewer input tokens than pasting full history into context
PreCompact hook re-injects memory when the agent compacts its context window
REST API now requires auth by default (v0.9.30)
Import existing Claude Code JSONL transcripts to backfill memory
Shared local memory server across Claude Code, Cursor, Codex and other agents
Obsidian export as frontmatter-tagged markdown
Mesh federation between machines over authenticated links
Vectors survive force-kill (v0.9.30 durability release)
General-purpose embedding models including voyage-3.5 and voyage-3.5 lite
Domain-specific embedding models optimized for finance, legal, and code
Company-specific fine-tuned embedding models on proprietary data
Voyage 4 model series for improved retrieval quality
voyage-multimodal-3.5 embeds images and text in one retrieval pipeline
Low-dimensional embeddings (3x-8x shorter vectors) cut storage and search costs
32K-token long-context support for embedding long documents
rerank-2.5 and rerank-2.5-lite add instruction-following to ranking
voyage-context-3 keeps chunk-level detail with global document context
Batch API for large-scale embedding workloads
4x smaller model with faster inference and superior accuracy
2x cheaper inference with superior accuracy
Plug-and-play with any vectorDB and any LLM
SOC 2 and HIPAA compliance
Deploy on major clouds, in-VPC customer tenants, or on-premise with model licensing
Integrations
Claude Code
Cursor
Codex
OpenClaw
OpenCode
Hermes
Obsidian

What real users say: Agentmemory vs Voyage AI

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Agentmemory

60 mentions across 6 sources · 61% positive — mixed (averaged across 6 sources)

Hacker News, YouTube, Product Hunt, Bluesky, GitHub, Lemmy

What users praise

  • • Free and open-source (MIT) with no external databases required.
  • • Excellent benchmark: 95.2% recall on LongMemEval-S.
  • • Triple-stream retrieval (BM25, vector, knowledge graph) is unique and effective.
  • • Works with 10+ coding agents via MCP and REST.

What frustrates them

  • • Crashes under large datasets (370K+ observations reported).
  • • Some early adopters retracted after production use.
  • • Tier 1 cap may limit truly infinite memory scenarios.
  • • Manual pruning needed for contradictory or stale memories.

Researched Jul 6, 2026

Voyage AI

64 mentions across 6 sources · 45% positive — mixed (weighted across 6 sources)

Hacker News, YouTube, App Store, Stack Overflow, GitHub, Lemmy

What users praise

  • • Domain-tuned embedders for finance, legal, and code deliver measurable retrieval precision gains
  • • Harvey case study showed 25% fewer irrelevant documents and 3x lower vectorDB costs
  • • Low-dimensional embeddings (3x-8x shorter vectors) cut storage and search costs materially
  • • Instruction-following rerank-2.5 and rerank-2.5-lite let you steer ranking behavior in plain language

What frustrates them

  • • Terms grant Voyage an irrevocable license to train on API customer data by default
  • • Usage-based pricing at $0.12-$0.18 per million tokens can balloon for high-frequency agents
  • • A community benchmarker found a small Jina model outperformed Voyage for their use case
  • • Circular import bug in voyageai v0.3.5 broke lazy import systems before being fixed

Researched Oct 14, 2026

Who should pick which

  • Solo developer using Claude Code
    Pick: Agentmemory

    Free, easy self-hosted setup, and directly integrates with Claude Code via MCP hooks. Eliminates context loss across sessions.

  • Enterprise RAG team in finance
    Pick: Voyage AI

    Voyage's finance-specific embedding model, long 32K context, and low-dimensional vectors optimize accuracy and cost for financial document retrieval.

  • Open-source contributor team
    Pick: Agentmemory

    Open-source, self-hosted, with mesh federation for team sync. No vendor lock-in, community-driven development.

  • Legal tech startup building document review
    Pick: Voyage AI

    Legal domain model and high recall from rerankers improve accuracy in legal document retrieval, despite higher cost.

  • AI agent memory researcher
    Pick: Agentmemory

    Supports graph extraction, Obsidian export, and OTEL observability — ideal for experimenting with memory architectures. Free and extensible.

Frequently Asked Questions

Agentmemory vs Voyage AI: which should you choose?

Agentmemory is the no-brainer choice for developers needing persistent agent memory — it's free, self-hosted, and integrates directly with coding agents like Claude Code. Voyage AI wins if you need high-accuracy embeddings for domain-specific RAG (finance, legal), but its enterprise pricing and lack of transparency make it unsuitable for smaller teams. Choose by need: agent memory vs. search retrieval.

Can Agentmemory and Voyage AI be used together?

Yes. Agentmemory's vector search could use Voyage's embeddings for improved recall, though it's not a built-in integration. You'd need to configure the vector store component.

Does Agentmemory require an external database?

No. It runs as a single Node.js process with no external dependencies. All memory is stored locally.

Is Voyage AI compliant with SOC 2 and HIPAA?

Yes, according to the description. Voyage AI supports SOC 2 and HIPAA compliance, suitable for regulated industries.

What is the latest news about Agentmemory?

As of 2026-06-29, Agentmemory is transitioning from a demo to production-grade infrastructure, indicating increased reliability and scalability.

Does Voyage AI offer a free tier?

The pricing is listed as 'contact', suggesting no free tier. Users must contact sales for access and pricing.

Which coding agents does Agentmemory support?

It supports Claude Code, Cursor, GitHub Copilot, Codex, Gemini CLI, Cline, and any MCP-compatible agent.

What makes Voyage AI's embeddings special?

Domain-specific models (finance, legal, code), up to 32K token context, low-dimensional vectors (3x-8x shorter), and instruction-following rerankers.

Can I self-host Agentmemory?

Yes. It is designed as a self-hosted solution, requiring only Node.js with no external services.

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Last reviewed: July 3, 2026