By Tom Morgan. Updated November 2, 2026 · about 14 minutes In 46 days, three of the best-known open-source LLM observability projects changed owners. Langfuse went to ClickHouse on January 16. Traceloop (the people behind OpenLLMetry) went to ServiceNow on March 2. Helicone went to Mintlify on March 3 and moved into maintenance mode. If … Read more
By Tom Morgan Picture the invoice. It says you spent a few thousand dollars on model calls last month, up sharply from the month before. Finance asks which product, which customers, which team. Your answer is a shrug, because the only thing the provider told you is the total. That gap, between “how much” and … Read more
By Tom Morgan · Reviewed 2 November 2026 · 15-minute read Rebuilt on 2 November 2026. The first version of this post pinned a set of Replit figures on the wrong source, linked to OpenTelemetry pages that have since turned into redirects, and had no trace you could reproduce yourself. This version fixes all three, … Read more