Prompt flow

Microsoft’s open-source toolkit for building and evaluating LLM flows.

Open Source Prompt Management & Testing github.com

About Prompt flow

Prompt flow lets you build LLM workflows that chain prompts and code, test them with datasets and evaluate the results, locally or in Azure.

Fits teams in the Microsoft ecosystem.

FAQ

What is Prompt flow?

Microsoft’s open-source toolkit for building and evaluating LLM flows.

Is Prompt flow free?

Yes. Prompt flow is open source and free to use or self-host.

What are some alternatives to Prompt flow?

Agenta, Arize Phoenix, Braintrust, DeepEval, Google AI Studio.

Alternatives to Prompt flow

All prompt management & testing →

Agenta

Open Source

Open-source platform for prompt management, evaluation and observability.

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Arize Phoenix

Open Source

Open-source tracing, evaluation and prompt playground for LLM apps.

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Braintrust

Freemium

Prompt management combined with evaluation and tracing.

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DeepEval

Open Source

Open-source framework for unit-testing LLM outputs.

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Google AI Studio

Free

Google’s free playground for writing and testing prompts with Gemini.

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Helicone

Open Source

Open-source LLM observability with prompt versioning and cost tracking.

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Langfuse

Open Source

Open-source LLM engineering platform with prompt management, tracing and evals.

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LangSmith

Freemium

LangChain’s platform for tracing, evaluating and managing prompts.

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Latitude

Open Source

Open-source platform for prompt engineering and AI agents.

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Lunary

Open Source

Open-source monitoring and prompt management for AI apps.

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Maxim AI

Freemium

End-to-end platform for prompt experimentation, evaluation and observability.

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MLflow Prompt Registry

Open Source

Open-source MLOps platform with GenAI tracing, evaluation and a prompt registry.

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