LangChain vs Living Brain

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

LangChain compared with Living Brain
Detail	LangChain	Living Brain
What it does	The open agent platform to own your intelligence	A persistent and self-learning interoperable memory layer for AI agents and tools.
Stage	Established	Not given
Founded	2023	Not given
Based in	US	Not given
Pricing model	Not given	Freemium
Pricing	Developer plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options.	Living 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
Key features	Agent observability with step-by-step tracing Agent evaluation and scoring Agent deployment infrastructure Production monitoring with online evaluations Autonomous agent improvement with Engine Secure sandbox execution for agent-generated code LLM Gateway for model call control No-code agent builder Fleet Open source frameworks for agent development	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
What makes it different	Comprehensive platform covering the entire agent development lifecycle from building to monitoring Open source frameworks with options from quick-start to low-level control Built-in observability and evaluation capabilities integrated into the platform Support for long-running autonomous agents with Deep Agents framework	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
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	88 +1 (up) since last check	12 +1 (up) since last check
Trust Flow (Majestic)	56	7
Citation Flow (Majestic)	64	18
Referring domains (Majestic)	28586	3

4 details filled in for both companies.

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