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Comet vs Sandbox0

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

Comet compared with Sandbox0
DetailComet logo Comet Sandbox0
What it doesThe AI Developer Platform Cloud agent sandbox with persistent filesystem and on-demand compute
StageNot given MVP
Founded2017 Not given
Based inUS US
Pricing modelNot given Paid
PricingNot given Compute: $0.015 per GiB-hour (approximately $0.000004167 per GiB-second, billed by the second). Storage: $0.02 per GiB-month for retained incremental RootFS data and memory checkpoints. Network ingress and egress currently free. Object-store GET and PUT requests free. New users receive $5 free credi
Key features
  • LLM trace logging with 40+ integrations
  • Automatic error detection and diagnostics
  • Ollie agent for code fix recommendations
  • Test Suites and 40+ LLM-as-a-judge evaluation metrics
  • Production dashboards and alerts for agents
  • Prompt playground and optimization
  • Agent Playground for local agent development
  • Cost intelligence for Claude Code and Codex tracking
  • Automatic filesystem growth as storage fills
  • Pause compute without losing work or paying compute charges
  • Resume to same environment on demand
  • Access files while paused without waking compute
  • Public HTTP services with auto-resume capability
  • Command-line interface (s0 CLI) for agent-native workflows
  • Incremental checkpoints to avoid full filesystem copies
  • Scoped API keys and team-based access controls
  • On-demand file reads without downloading entire filesystem
What makes it different
  • Truly open-source platform with enterprise-grade infrastructure
  • Traces appear almost instantly even at high volumes
  • Flexible hosting options including self-hosted, cloud, and custom deployments
  • Easy integration with just a few lines of code
  • Opik automatically turns trace data and eval results into code fixes
  • Persistent filesystem across pause/resume without duplicating data
  • Pay only for compute time used; paused sandboxes have zero compute charges
  • Automatic filesystem growth so agents can install and persist unlimited tools
  • Same API for both human users and AI agents
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)74 +1 (up) since last check16 +1 (up) since last check
Trust Flow (Majestic)285
Citation Flow (Majestic)5121
Referring domains (Majestic)444817

4 details filled in for both companies.

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