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PROMPTFOO

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Blog
Who Bought Your LLM Observability Tool? The 2025-2026 Consolidation, and How to Stay Portable

Langfuse is part of ClickHouse, Promptfoo is part of OpenAI, Galileo is part of Cisco, Traceloop is joining ServiceNow, Helicone joined Mintlify and Humanloop shut down. Who owns what in October 2026, the dates the vendors state, and a portability checklist built on OTLP ingest, licenses and self-hosting.

Blog
AI Agent Eval Tools Compared: Braintrust vs Promptfoo vs DeepEval

AI agent eval tools compared - Braintrust, Langfuse, Promptfoo, DeepEval, Ragas, and OpenAI Evals on offline vs online evals, LLM-as-judge, CI, and datasets.

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