LLM Evaluation, Observability and Quality

WhyLabs

ML and LLM observability built on the open-source whylogs and langkit libraries.

Headquarters
Seattle, USA
Founded
2019
Products listed
2
Listing status
Unclaimed
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About

About WhyLabs

WhyLabs provides observability for traditional ML and LLM applications. The whylogs open-source library is used for data profiling. LangKit adds LLM-specific signals (toxicity, sentiment, hallucination cues).

Test, monitor, and grade LLM outputs in development and production. Hallucination detection, regression testing, traceability, and continuous quality measurement.

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This profile is part of a free, independent directory maintained by CWS. CWS is a cybersecurity professional services firm, not a vendor, and does not accept payment for inclusion or ranking.

Products

WhyLabs products and platform components

Direct links to the vendor's product pages. Last reviewed 2026-05-07.

WhyLabs Platform

ML and LLM observability with model monitoring.

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LangKit (open source)

Open-source LLM observability toolkit. Apache 2.0.

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CWS engagement

How CWS works with WhyLabs

CWS helps customers evaluate, deploy, and operate WhyLabs products as part of an AI security program. Engagements span vendor selection, proof-of-concept design, integration with existing controls, day-2 operations, and exit planning if the fit changes over time.

CWS does not resell WhyLabs. The recommendation is honest, evidence-based, and tied to the customer's posture gaps, not to channel economics.

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