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Helicone
Open-source LLM observability, logging, and cost tracking.
Visit Helicone
https://www.helicone.ai
About Helicone
Open-source LLM observability platform. Helicone logs all your LLM requests, tracks costs and latency, runs prompt experiments, and detects issues — with a single line of code added to your existing OpenAI or Anthropic calls.
Key Features
Helicone Pros & Cons
✅ Pros
- +One-line integration with OpenAI/Anthropic/Gemini
- +Open-source with free generous tier
- +Real-time cost tracking prevents surprise bills
⚠️ Cons
- −Smaller feature set than LangSmith for complex chains
- −Enterprise features require paid plan
Who Is Helicone Best For?
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