Brief vs Viaduct

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

Brief compared with Viaduct
Detail	Brief	Viaduct
What it does	AI navigates your team from vision to impact at speed	Free C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools
Stage	Startup	Not given
Founded	2024	Not given
Based in	US	LT
Pricing model	Freemium	Freemium
Pricing	Free: $0/month with 50 AI credits. Pro: $49/month per seat with 200 AI credits per seat (15% discount for annual: ~$42/month). Teams: $89/month per seat with 500 pooled AI credits and 5-seat minimum (15% discount for annual: ~$76/month). Enterprise: Custom pricing. Overage rates: $0.10/credit (Pro),	Browser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing.
Key features	Navigate AI agents to product context via MCP Capture and search product decisions automatically Integrate with Cursor, Claude Code, Windsurf, and CLI Connect to Slack, Notion, Linear, GitHub, and more Build your Product Graph from existing tools 95% decision compliance when agents access Brief 8/8 merge-ready tasks with Brief versus 2 of 8 without 68% cost reduction per merge-ready task Admin dashboard for team usage visibility SSO and security controls for Enterprise	System context, container, component, and code diagrams Live collaboration on models MCP server for AI coding agents Change sets for scoped agent work Organization SSO JSON import and export OpenAPI contract export Desktop app for macOS, Windows, Linux AI assistant for model descriptions Installable PWA
What makes it different	Navigates AI agents to why decisions were made, not just what code does Extracts decisions automatically from existing tools without workflow changes Immediate value: see results in minutes by connecting your tools Enables AI agents to build the right features with full context	Model elements exist once and appear on every level they belong to Endpoints are real OpenAPI documents, not diagram labels Desktop app keeps all data local and offline-capable Free browser version with no paywall or feature limits AI agents read and write architecture through MCP
Community votes	0	0
DR (Domain Rating by Ahrefs)	38 −1 (down) since last check	20 no change since last check
Trust Flow (Majestic)	19	10
Citation Flow (Majestic)	27	28
Referring domains (Majestic)	228	74

6 details filled in for both companies.

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