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Living Brain vs Levee

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Living Brain compared with Levee
DetailLiving Brain logo Living BrainLevee logo Levee
What it doesA persistent and self-learning interoperable memory layer for AI agents and tools. Authorization layer for AI agent spend with human-approved mandates and tamper-evident proof
StageNot given Startup
FoundedNot given 2026
Based inNot given Not given
Pricing modelFreemium Free trial
PricingLiving Brain API: $8 per 1M input tokens and $0.50 per 1M output tokens, pay as you go with $5 minimum top-up and no monthly minimum. Living Brain Workspace: $99 per month (most popular), includes three team seats, $80 shared monthly credits for first three cycles then $50, managed Brains and agents Free 12 week pilot for card issuing platforms
Key features
  • Semantic search and connection discovery
  • Memory scoring and optimization
  • REST API, SDK, CLI and MCP support
  • Document extraction and storage
  • Audio transcription
  • Webhook subscriptions and integrations
  • Slack and Telegram capture
  • Scheduled briefs and page history
  • Markdown export and structured output
  • Multi-brain and team collaboration
  • Passkey-signed spend mandates with purpose, budget, merchants, and time windows
  • Real-time authorization decisions with sub-1 second response time at p99
  • Human challenge via passkey step-up for exceptional spend
  • Fail-closed payment processing if no decision arrives in time
  • Hash-chained evidence ledger with tamper-evident records
  • Exportable evidence packs for chargebacks and audits
  • Supports card, wallet, x402 and stablecoin payment rails
What makes it different
  • 22.6X fewer tokens per question and 95% lower cost per task vs full context baseline
  • 0% hallucinations on LongMemEval-S evaluation
  • Works across 60+ AI platforms via unified API
  • Human-approved mandates enforce intent, not just static limits or merchant category blocks
  • Operates outside the agent in the issuer's authorization path, preventing agent bypass or override
  • Creates tamper-evident audit trail linked to agent identity, run, and policy version
  • Never holds funds or issues cards; integrates with existing issuer infrastructure
  • Single mandate and policy core across multiple payment rails and issuers
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)12 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)70
Citation Flow (Majestic)180
Referring domains (Majestic)30

5 details filled in for both companies.

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