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HeliconeHC
HC

Helicone

New

Open source LLM observability for production AI

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DEVTOOLSSeedEst. 202310–50 employeesSan Francisco

Helicone is the open source LLM observability platform used by thousands of developers to monitor, debug, and optimize their AI applications. It integrates with OpenAI, Anthropic, and other providers in one line of code, providing request logging, cost tracking, prompt versioning, and fine-tuning workflows.

Total Raised$4M
Y CombinatorAbstract Ventures

Founders

J
Justin Torre
S
Scott Nguyen