Co-founder of Parea here, thanks for the mention!

We offer testing/evaluation in development ([1], [2]), and production ([3]). You can use pre-built evals ([4]) or create your own ([5]). Do logging ([6]) and go from trace to playground ([7]). For TypeScript & Python.

[1]: https://docs.parea.ai/evaluation/offline/experiments

[2]: https://docs.parea.ai/platform/test_hub/benchmarking

[3]: https://docs.parea.ai/evaluation/evals-in-trace

[4]: https://docs.parea.ai/evaluation/list_of_autoeval_functions

[5]: https://docs.parea.ai/evaluation/evaluation-functions/create

[6]: https://docs.parea.ai/observability/logging_and_tracing

[7]: https://docs.parea.ai/observability/open_trace_in_playground