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Modal vs Perseus Computing

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

Modal compared with Perseus Computing
Detail ModalPerseus Computing logo Perseus Computing
What it doesThe platform for production AI High-assurance infrastructure for AI agents
StageNot given Not given
FoundedNot given Not given
Based inUS US
Pricing modelPaid Open source
PricingStarter plan is free with $30/month compute credits. Team plan is $250/month plus compute. Enterprise plan is custom. Compute is billed per second for CPU, GPU, and memory with no charges for idle time. Not given
Key features
  • Serve LLMs, image, video, and audio models
  • Isolated environments for coding agents and RL rollouts
  • Fine-tune and train models on GPUs
  • Autoscale compute from zero to thousands of GPUs
  • Distributed storage for models and weights
  • Global capacity across 20+ clouds
  • Serverless functions with HTTPS endpoints
  • Out-of-the-box observability and logs
  • Harpe: chooses what an AI agent reads under a token budget with consistent results
  • Kibisis: keeps agent memory on your hardware with AES-256-GCM encryption
  • Argus: append-only record that detects edits with cryptographic verification
  • No network code by default for local and disconnected use
  • MIT License with published code, benchmarks and raw results
What makes it different
  • Custom infrastructure built for AI including container runtime, storage, and scheduler
  • Sub-second container startup times for GPU workloads
  • Pay only by the second with no idle charges
  • Programmatically create millions of concurrent sandboxes
  • Measured empirical validation across 6,111 questions outperforming full-context models
  • Zero plaintext on disk with encrypted vaults matching plaintext accuracy
  • 78.3% fewer tokens sent to the model with a 1,200-token budget per turn
  • Preserves conversational chronology and relational qualifiers under token budgets
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)81 +1 (up) since last check42 +1 (up) since last check
Trust Flow (Majestic)333
Citation Flow (Majestic)5324
Referring domains (Majestic)617462

5 details filled in for both companies.

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