Testing

Braintrust

LLM evaluation and prompt management for production

DeepEval

Pytest-style unit testing for LLM outputs, 50+ metrics, Apache 2.0

Promptfoo

MIT-licensed LLM eval and red-teaming CLI, now owned by OpenAI

Qodo

Agentic PR review and test generation for engineering teams

Thunders

Plain-language AI agents that write and self-heal your test suite