Langfuse vs PromptFoo

Compare these two Prompt Tools tools side-by-side to find the best fit for your project.

Langfuse

Prompt Tools

9/10

Open-source LLM engineering platform. Traces, evals, prompt management, and metrics for LLM apps.

Prompt Tools

9/10

Open-source LLM evaluation framework. Test prompts against datasets, compare models, and catch regressions.

Choose Langfuse if:

Choose PromptFoo if:

Feature	Langfuse	PromptFoo
Category	Prompt Tools	Prompt Tools
Pricing Model	Free	Freemium
Starting Price	Free	Free
Rating	9/10	9/10
Complexity	Intermediate	Intermediate
AI Models	Llama	GPT-4, GPT-4o, GPT-3.5, Claude, Gemini, Llama, Mistral, PaLM
Integrations	GitHub, AWS, OpenAI, Anthropic, LangChain	GitHub, Azure, OpenAI, Anthropic
Best For	Open-source-first teams and startups building LLM applications who want an integrated platform for tracing, prompt management, and evaluation without vendor lock-in. Perfect for teams that need cost tracking and want to manage prompts without deploying separate infrastructure.	PromptFoo is perfect for development teams and ML engineers building AI applications who need systematic ways to evaluate and improve prompts without manual testing. It's especially valuable for teams deploying LLM features to production where regression detection and quality assurance are critical to maintaining consistent performance.

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