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Subquadratic vs Custodian Labs

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

Subquadratic compared with Custodian Labs
DetailSubquadratic logo SubquadraticCustodian Labs logo Custodian Labs
What it doesEfficiency is Intelligence Deploy production-grade AI agents in 2 minutes with built-in PII protection
StageStartup Not given
FoundedNot given Not given
Based inUS NZ
Pricing modelPaid Freemium
PricingFree 100M tokens for new users. $0.04 per 1M tokens for input tokens. Basic (Free): 100k tokens, 1k requests, GPT-6 Luna, email and community support. Starter: $19/month (was $49): 1m tokens, 10k requests, all models with newest first, priority 24/7 support, direct roadmap input, monthly 1:1 product call, free compliance assessment. Custom: contact for enterprise need
Key features
  • 384K token context window
  • Multimodal input support
  • 100K tokens processed in less than a second
  • Structured output for direct code use
  • Subquadratic Sparse Attention algorithm for efficient compute
  • $0.04 per 1M tokens pricing
  • Customer content not used for model training
  • Data retention limited to 60 days
  • Guardian Layer PII protection with remove, mask, transform or detect options
  • Support for over 100 AI models including OpenAI, Anthropic, Google, Mistral and open-source
  • Build with Python, JavaScript or visual no-code builder
  • Multi-agent routing with specialized agents on different models
  • Tools including web search, Gmail, X, URL scraping and document parsing
  • Built-in knowledge base with automatic retrieval, embeddings and citations
  • Zero infrastructure deployment with hosted endpoint and auto-scaling
  • Session memory included in deployments
  • Bring your own API key or use Custodian-managed models
  • Custom entity types for PII protection
What makes it different
  • First long-context decision model purpose-built for enterprise work
  • Frontier-level decision-making performance at 5-10x lower cost than frontier LLMs
  • Tied for #1 on Artificial Analysis Decision Index
  • Processes entire codebase or data room in single context window
  • Speeds agent reasoning from minutes to seconds
  • Guardian Layer proprietary PII protection keeps context while protecting sensitive data
  • Deploy production agents in 2 minutes with no infrastructure setup
  • One-line model switching across 100+ models without changing agent logic
  • Complete support agent with knowledge base and memory in 6 lines of code
  • Built-in multi-agent routing for specialized agent teams
Community votes00
DR (Domain Rating by Ahrefs)52 +1 (up) since last check3 no change since last check
Trust Flow (Majestic)179
Citation Flow (Majestic)3723
Referring domains (Majestic)65452

6 details filled in for both companies.

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