Helicone

Open-source LLM observability platform

⭐3,000
MLOps & MonitoringFree + Pro plans
🌐 Visit Website📦 GitHub

About Helicone

Helicone is an open-source observability platform for LLM applications. It provides request logging, cost tracking, latency monitoring, and prompt management — essential for production AI deployments.

Features

✦Request logging
✦Cost tracking
✦Latency monitoring
✦Prompt management
✦User tracking

Pros & Cons

Pros

  • +One-line integration
  • +Cost tracking
  • +Latency monitoring
  • +Prompt management
  • +Open-source

Cons

  • −Limited free tier
  • −Cloud-focused
  • −Smaller feature set vs W&B
  • −Less mature

Platforms

Web

Tags

#observability#monitoring#costs#open-source

Related AI Concepts

Open Source

Similar Tools

Weights & Biases

ML experiment tracking, model management and monitoring

Free + Teams $50/mo

BentoML

Build and deploy AI applications as APIs

Free (open-source) + Cloud

MLflow

Open-source platform for the ML lifecycle

Free (open-source)

Dstack

Open-source engine for running AI workloads on any cloud

Free (open-source) + Enterprise

📰 Featured In

All guides →
📖

OpenRouter vs LiteLLM vs Portkey: Best LLM Gateway in 2026

Tools & APIs

Category

Browse all MLOps & Monitoring tools →
🔧

Need help choosing?

Compare Helicone with alternatives side by side

Compare Tools →