Context Engine vs Living Brain
Context Engine and Living Brain are both AI assistants tools. Context Engine is aimed at small businesses and developers, while Living Brain is aimed at developers and small businesses. Only Context Engine has a free plan.
Shared memory that AI agents and team members read and write
Shared memory layer for AI agents via API, SDK, CLI and MCP
| Pricing | Freemium · $12 | Paid |
| Starting price | $12/mo | Not published |
| Free plan | Yes | No |
| Free trial | — | — |
| Built for | Small businesses, Developers, Agencies | Developers, Small businesses, Enterprise |
| Platforms | web | web |
| Country | US | — |
| Rating | — | — |
Choose Context Engine if
Small teams and agencies that use several AI assistants and want one shared, auditable memory across them.
- Unlimited human users on every plan, including free
- Low entry price of $12 a month per engine
- Works with ChatGPT, Claude, Claude Code and Cursor
Look elsewhere if: Developers who want an embeddable memory library inside their own agent code (Mem0, Zep).
Choose Living Brain if
Developers and AI-heavy teams who use several models and agents and want one portable memory layer behind them.
- Model-independent memory that follows you across AI tools
- Pay-as-you-go API with a $5 minimum and no subscription
- Many access routes: API, SDKs, CLI and MCP
Look elsewhere if: Teams that just need a note-taking app or a proven enterprise knowledge platform (Notion, Obsidian, Context Engine).
Context Engine vs Living Brain pricing
Context Engine
- Free$01 agent (up to 3 via referrals) and 1 GB per engine, unlimited users
- Pro$12/moPer engine: 10 agents, 25 GB; $99/yr billed annually
- Unlimited$39/moPer engine: unlimited agents, 100 GB; $299/yr annually
- EnterpriseFrom $6,000/yrSelf-hosted install, SSO, roles and audit log
Living Brain
- API$8 per 1M input tokens$0.50 per 1M output, prepaid from $5, 1 GB, 1 seat
- Workspace$99/mo3 seats, 10 GB; included with ChatChat Pro+, no direct checkout
- BusinessCustomDedicated, customer-cloud or on-prem deployment options
Context Engine · Key features
- Shared memory that AI tools read and save to over MCP
- Separate engines, each with its own database and search index
- Per-connection access set to read only or read and save
- Plain-language answers that cite their source memories
- Automatic daily, weekly and monthly summaries
- Duplicate detection that updates the existing memory
Cons
- Free plan allows one agent per engine, three at most through referrals
- Each connected tool counts as a separate agent
- Self-hosting only on the Enterprise plan from $6,000 a year
Living Brain · Key features
- Captures chats, files, notes and URLs into source-linked pages
- Knowledge graph with automatic connection discovery
- Hosted MCP server for Claude Code, Codex, Cursor, VS Code and more
- Sign-in connection for ChatGPT and Claude without an API key
- REST API, TypeScript and Python SDKs and a CLI
- PDF, Word, PPTX and HTML extraction plus audio transcription
Cons
- Benchmark results are the vendor's own evaluations
- Docs describe the product as early access
- Workspace has no direct checkout and comes with ChatChat Pro+
Context Engine vs Living Brain: FAQ
Do Context Engine and Living Brain have a free plan?
Context Engine has a free plan. Living Brain has no free plan.