evalflow is an open-source CLI tool designed for evaluating and testing prompts for large language models. It helps developers catch prompt regressions and maintain quality in LLM-powered applications, supporting integration with CI workflows.
evalflow sits in PulseGate's LLM eval & observability category. It focuses on detecting prompt regressions in LLM applications before they reach production. It is built as an open-source project for AI developers and ML engineers. evalflow is open source under the MIT license. The product ships for the web and the command line, and it can be self-hosted.
It is developed by emartai, and the product first shipped in 2026. Development happens publicly on GitHub with 13 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — evalflow occupies a relatively distinct niche. Key capabilities include prompt evaluation, regression testing, and LLM integration.
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