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Stanford NLP and the DSPy community · Prompting, evaluation & observability

Python framework for programming language-model pipelines with typed signatures and modules, then optimizing prompts and weights automatically against a metric

MITOpen sourceFreeLocalSelf-hostedNov 2, 2026

Ragas

Vibrant Labs (formerly Exploding Gradients) · Prompting, evaluation & observability

Open-source Python library for evaluating LLM and RAG applications with LLM-driven and custom metrics, experiments, dataset management and result tracking

Apache-2.0Open sourceFreeLocalBroken

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DSPy

Ragas