Evals & Observability

“Their team built an eval practice in Braintrust that helps them curate datasets” — braintrust.dev, Jul 2026

“what Browserbase uses Braintrust to observe and understand” — braintrust.dev, Jul 2026

“LangSmith was their first line of defense in the testing process” — blog.langchain.dev, Mar 10, 2025

“That was something we leaned on Braintrust for.” — braintrust.dev, Aug 2026

“With evaluation infrastructure in place through Braintrust, Coursera maintains continuous quality awareness” — braintrust.dev, Jul 2026

“Our benchmark, Cursor Bench, consists of real agent requests from engineers and researchers at Cursor” — cursor.com, Oct 29, 2025

“offline using BugBench, a curated benchmark of real code diffs” — cursor.com, Jan 15, 2026

“heavy users and find the developer experience of Datadog vastly superior to the alternatives” — newsletter.pragmaticengineer.com, Jun 10, 2025

“Braintrust allows us to set up that flywheel.” — braintrust.dev, Jul 2026

“His job is making sure that work is good, and Braintrust is how he measures it.” — braintrust.dev, Aug 2026

“Fintool leverages Braintrust’s tools to benchmark the quality of LLM outputs in real time.” — braintrust.dev, Jul 2026

“run evaluations on both options using their annotated datasets in Braintrust” — braintrust.dev, Jul 2026

“With LangSmith, Klarna could pinpoint what issues arose by seeing step-by-step how their AI assistant behaved.” — langchain.com, Feb 12, 2025

“adapting and improving evaluation tooling for LLM applications using LangSmith” — jobsinforex.com, Jul 21, 2026

“To answer that question, they started running evals on Braintrust with their own custom scoring functions.” — braintrust.dev, Jul 2026

“we utilized the LangSmith Vitest integration .” — blog.langchain.com, Feb 18, 2026

“This is where Navan partnered with Braintrust to build their evaluation loop.” — braintrust.dev, Jul 2026

“I sat down in Braintrust and looked at some of the worst experiences our customers had” — braintrust.dev, Jul 2026

“We grade all benchmarks using the same prompted classifier methodology used in the original work” — research.perplexity.ai, Jul 17, 2026

“you will build specialized evals to improve answer quality across Perplexity” — jobs.ashbyhq.com, Jun 29, 2026

“turned to LangSmith for LLM testing and observability.” — blog.langchain.dev, Aug 15, 2024

“she creates a dataset in Braintrust tagged with the specific issue.” — braintrust.dev, Jul 2026

“requires using Braintrust to test every prompt as part of the CI pipeline.” — braintrust.dev, Aug 2026

“uses Loop to spin up new scorers quickly.” — braintrust.dev, Aug 2026

“LangSmith allows us to get things done scientifically.” — blog.langchain.dev, Feb 14, 2024

“Braintrust has been the lifeblood of our ability to execute against our roadmap” — braintrust.dev, Jul 2026

“ServiceNow implemented a sophisticated evaluation framework in LangSmith tailored to their multi-agent system.” — blog.langchain.com, Nov 17, 2025

“we built an LLM-powered merchant simulator that captures the 'essence' or goals of real conversations” — shopify.engineering, Aug 26, 2025

“We moved away from carefully curated "golden" datasets toward Ground Truth Sets (GTX)” — shopify.engineering, Aug 26, 2025

“Trellix used LangSmith for experimentation and to action upon performance metrics.” — blog.langchain.dev, Apr 21, 2025

“With LangChain, LangGraph and LangSmith, Vodafone has successfully delivered advanced AI-driven solutions” — blog.langchain.dev, Mar 23, 2025

“The Zapier team uses Braintrust to log user interactions, dig into their logs, track customer feedback” — braintrust.dev, Jul 2026