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ContextStream vs AI999X Labs

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

ContextStream compared with AI999X Labs
DetailContextStream logo ContextStream AI999X Labs
What it doesShared project context for AI coding agents Not given
StageStartup Not given
Founded2024 Not given
Based inNot given Not given
Pricing modelFreemium Free
PricingStarter: Free with 10,000 credits every month, 1 user, up to 15 projects. Pro: $19/month with 25,000 credits every month, 1 user, unlimited projects. Elite: $49/month with 100,000 credits every month, 1 user, unlimited projects. Team: $79/user/month with 200,000 credits per seat pooled, 3+ users, $2 Not given
Key features
  • Hosted code search with indexing and dependency graphs
  • Save and retrieve project decisions with reasoning
  • Record lessons from past work to guide future tasks
  • Plans, runbooks, and handoffs for agent coordination
  • MCP integration with Cursor, Claude Code, Codex, Grok
  • Change impact analysis and code health metrics
  • Team collaboration with shared workspaces
  • Privacy controls and access permissions
  • ContextCode CLI and VS Code extension
  • Knowledge Atlas to explore code and project connections
  • 39 scientific models across mathematics, physics, chemistry, engineering, life sciences, economics and geospatial analysis
  • 3,438 capabilities with worked examples and formulas
  • Desktop app for Windows and Linux
  • Command-line interface for scripts and terminal
  • In-browser calculator on every model page
  • Python packages via pip
  • SpaceBuild for space system design with 146 products
  • MachineBuild for engineering and mechanical design with 1,042 products
  • Capability orb visualization of all 3,438 capabilities
  • No internet or account required
What makes it different
  • Switch agents without re-explaining the project
  • Decisions and lessons carry over across sessions and tools
  • Full-featured free plan with 10,000 monthly credits
  • High code recall (99.38%) and memory accuracy (91.4%)
  • Evidence-based answers with source attribution
  • Runs completely offline with no data sent anywhere
  • Shows all working and formulas for every calculation
  • No sign-up required or accounts needed
  • Available as desktop app, CLI, browser, and Python package
  • Models improve themselves through local research
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)32 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)50
Citation Flow (Majestic)360
Referring domains (Majestic)1090

3 details filled in for both companies.

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