Best Langfuse Alternatives in 2025
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Test, compare & refine prompts across 50+ LLMs instantly—no API keys or sign-ups. Enforce JSON schemas, run tests, and collaborate. Build better AI faster with LangFast.
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We're in Public Preview now! Teammate Lang is all-in-one solution for LLM App developers and operations. No-code editor, Semantic Cache, Prompt version management, LLM data platform, A/B testing, QA, Playground with 20+ models including GPT, PaLM, Llama, Cohere.
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Build and deploy LLM apps with confidence. A unified platform for debugging, testing, evaluating, and monitoring.
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LangWatch provides an easy, open-source platform to improve and iterate on your current LLM pipelines, as well as mitigating risks such as jailbreaking, sensitive data leaks and hallucinations.
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Langbase empowers any developer to build & deploy advanced serverless AI agents & apps. Access 250+ LLMs and composable AI pipes easily. Simplify AI dev.
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Debug prompts, run tests, and observe what’s happening in production.Speed up your AI development workflow with Langtail.
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Langtrace AI is an open-source observability tool for monitoring, evaluating and improving LLM apps, providing end-to-end visibility, security and integration to optimize performance and build with confidence.
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LangDB AI Gateway is your all - in - one command center for AI workflows. It offers unified access to 150+ models, up to 70% cost savings with smart routing, and seamless integration.
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Laminar: The open-source platform for AI agent developers. Monitor, debug & improve agent performance with real-time observability, powerful evaluations & SQL insights.
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Manage your prompts, evaluate your chains, quickly build production-grade applications with Large Language Models.
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Flowstack: Monitor LLM usage, analyze costs, & optimize performance. Supports OpenAI, Anthropic, & more.
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Meet Langdock, a GDPR-compliant chat assistant that empowers teams. With multiple models, file support, and multiplayer collaboration, Langdock enhances productivity and ensures data privacy.
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LLime is a powerful software with customizable AI assistants for every department. Boost productivity with simple setup, secure data, and custom models.
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Laminar is a developer platform that combines orchestration, evaluations, data, and observability to empower AI developers to ship reliable LLM applications 10x faster.
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Langflow is an open-source Python framework for building multi-agent & RAG apps. With a visual IDE, free cloud service, and model agnostic design, it empowers developers and non-coders alike.
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Develop and deliver exceptional AI products with Langtail. Streamline the process, foster collaboration, and ensure successful deployment. Harness the potential of AI.
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LangExtract: Python library for verifiable LLM data extraction. Turn unstructured text into precise, source-grounded, structured data you can trust.
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Revolutionize LLM development with LLM-X! Seamlessly integrate large language models into your workflow with a secure API. Boost productivity and unlock the power of language models for your projects.
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Unlock the full potential of LLM Spark, a powerful AI application that simplifies building AI apps. Test, compare, and deploy with ease.
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Easily monitor, debug, and improve your production LLM features with Helicone's open-source observability platform purpose-built for AI apps.
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To speed up LLMs' inference and enhance LLM's perceive of key information, compress the prompt and KV-Cache, which achieves up to 20x compression with minimal performance loss.
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PromptTools is an open-source platform that helps developers build, monitor, and improve LLM applications through experimentation, evaluation, and feedback.
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Traceloop is an observability tool for LLM apps. Real-time monitoring, backtesting, instant alerts. Supports multiple providers. Ensure reliable LLM deployments.
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Turn your LLM app prototype into a product matching your quality standards. Test, evaluate, guardrail and improve your LLM app.
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Boost Your Platform with our AI-driven Solutions. Enhance assessments, interviews, student communication and unlock the full potential of personalized education.
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LM Studio is an easy to use desktop app for experimenting with local and open-source Large Language Models (LLMs). The LM Studio cross platform desktop app allows you to download and run any ggml-compatible model from Hugging Face, and provides a simple yet powerful model configuration and inferencing UI. The app leverages your GPU when possible.
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Lumigo: AI observability for microservices. Troubleshoot faster with AI-powered insights. Trace, log, & optimize your apps.
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Streamline LLM prompt engineering. PromptLayer offers management, evaluation, & observability in one platform. Build better AI, faster.
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Braintrust: The end-to-end platform to develop, test & monitor reliable AI applications. Get predictable, high-quality LLM results.
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Langroid is a Python LLM-application framework with agents as first-class citizens, enabling complex applications via multi-agent programming. Supports OpenAI LLMs, caching, vector-stores, and more. Start your intelligent app journey easily!