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Cobrain vs Command+K

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

Cobrain compared with Command+K
DetailCobrain logo CobrainCommand+K logo Command+K
What it doesShared memory for Claude, ChatGPT and your AIs In-product AI assistant that answers from your documentation and acts as the signed-in user
StageStartup Not given
Founded2026 Not given
Based inIT Not given
Pricing modelNot given Freemium
PricingFree: $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. Free trial: 14 days, no credit card required. AI Adopter: $29/month (beta price, regularly $79/month), includes 1,500 monthly credits. AI Pilot: $99/month (beta price, regularly $299/month), includes 6,000 monthly credits plus SSO, whitelabel, custom domain, and audit log export. Hosted MCP Endpoint
Key features
  • 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
  • Build MCP: Convert OpenAPI or GraphQL APIs to hosted MCP servers
  • CMD+K Widget: Embeddable in-product chat assistant with one script tag
  • Tool calling and action execution as signed-in user
  • Knowledge base with citations
  • OAuth 2.1 authentication gateway
  • Direct Stripe meter event forwarding
  • Per-user spend caps with auto-suspend
  • Whitelabel branding
  • SAML SSO and audit log export
  • Custom domain support
What makes it different
  • Free plan with no expiration for solo users
  • Receivers of shares never pay
  • Built by an agency using it daily with 648 notes
  • Acts as the signed-in user to complete real tasks, not just answer questions
  • Five-minute setup with one script tag, no complex agent design required
  • Prepaid billing with no per-resolution charges or metered overage
  • Direct control of customer relationship and billing through your own Stripe account
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)5 no change since last check1 +1 (up) since last check
Trust Flow (Majestic)71
Citation Flow (Majestic)2719
Referring domains (Majestic)1526

4 details filled in for both companies.

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