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OpenLIT vs Celest

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

OpenLIT compared with Celest
DetailOpenLIT logo OpenLITCelest logo Celest
What it doesOpen-source agent harness engineering platform built on OpenTelemetry One place to understand and operate AI agents across Microsoft
StageStartup Not given
Founded2024 Not given
Based inIN US
Pricing modelOpen source Free
PricingOpen source (Apache 2.0): Free self-hosted with unlimited usage. Enterprise Edition: Contact sales for pricing. Cloud: Coming soon. Not given
Key features
  • OpenTelemetry-native LLM tracing for every call, tool, and retrieval
  • Agent evals with LLM-as-a-judge and heuristics
  • Prompt Hub for versioning and deployment without code changes
  • Guardrails for prompt injection, jailbreak, and sensitive topic detection
  • Vault for encrypted API key management
  • OpenGround for side-by-side LLM model comparison
  • GPU monitoring for utilization, memory, temperature, and power
  • Coding agent observability for Claude Code, Codex, and Cursor
  • Cost tracking and latency monitoring
  • 56+ integrations with LLMs, frameworks, and vector databases
  • Agent Estate Review: read-only review connecting fragmented agent ownership, capability, usage, cost, and risk records
  • Helpdesk Triage: AI ticket triage for SharePoint service desks with operator approval
  • Agent Workbench: open, refine, and export Microsoft 365 Copilot agent packages
  • 30/60/90-day operating plan generation
  • Source-backed inventory with identity, ownership and authority tracking
  • Review trails for accountability
What makes it different
  • Self-host free forever under Apache 2.0 with unlimited usage and no per-trace fees
  • OpenTelemetry-native traces exportable to Grafana, Datadog, or any OTLP backend
  • Zero-code instrumentation with eBPF controller, native SDKs, or GPU collector
  • Unified platform for traces, evals, guardrails, and prompts on the same production data
  • Full data ownership and no vendor lock-in with exportable OpenTelemetry traces
  • Connects fragmented Microsoft records into one accountable operating picture
  • Makes agent workforce explicit and operable within two weeks
  • Operator retains final authority over all changes
  • Evidence-backed decision trails throughout the platform
Community votes00
DR (Domain Rating by Ahrefs)65 no change since last check16 no change since last check
Trust Flow (Majestic)237
Citation Flow (Majestic)3926
Referring domains (Majestic)48388

5 details filled in for both companies.

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