About
I'm Haeseong, founder of Spanlens, an open-source LLM observability platform for developers shipping AI products. Spanlens lets you monitor costs, latency, and traces across OpenAI, Anthropic, Gemini, and more with just two lines of code. Self-hostable, MIT licensed, and built because production LLM costs are invisible until they hurt. Launching on Product Hunt June 3. Always happy to connect with builders and the PH community.
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