Context Engine vs Cobrain

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

Context Engine compared with Cobrain
Detail	Context Engine	Cobrain
What it does	One memory for your AI agents and your team	Shared memory for Claude, ChatGPT and your AIs
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	IT
Pricing model	Freemium	Not given
Pricing	Free: $0 forever with 1 agent per engine (up to 3 when friends refer), 1 GB memory. Pro: $12/month or $99/year per engine with 10 agents and 25 GB memory. Unlimited: $39/month or $299/year per engine with unlimited agents and 100 GB memory. Enterprise: from $6,000/year per install on your own server	Free: $0, up to 1,000 notes. Pro: $9/month, unlimited notes and shares. Team: $7/seat per month (minimum 3 seats), company brain with multiple admins.
Key features	Connect ChatGPT, Claude, Claude Code and Cursor with a few clicks AI tools save decisions, notes, people, customers and files Search with semantic understanding, not just exact words Automatic summaries by day, week and month Link related memories automatically Prevent duplicate memories with deduplication Export all data as Markdown and JSON Separate engines for clients with no data crossing Fine-grained access control (read or read-and-save) Full history tracking for every change	Shared memory across different AIs Markdown notes in real folders Share branches with collaborators MCP connector for Claude, ChatGPT and compatible AIs Search by meaning on Pro and Team plans Attach PDFs and documents for AI to read Version history with unlimited revisions on Pro Permission-based access control
What makes it different	Keeps AI tools from forgetting context between sessions Data isolated per engine with no sharing between customers Fully portable—export anytime or delete permanently Pay per engine, never per person added to team	Free plan with no expiration for solo users Receivers of shares never pay Built by an agency using it daily with 648 notes
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)	17 +2 (up) since last check	5 no change since last check
Trust Flow (Majestic)	13	7
Citation Flow (Majestic)	28	27
Referring domains (Majestic)	32	15

4 details filled in for both companies.

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