Best LangSmith Alternatives in 2025
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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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Unlock the full potential of LLM apps with Langfuse. Trace, debug, and improve performance with observability and analytics. Open-source and customizable.
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LangGraph Studio offers a new way to develop LLM applications by providing a specialized agent IDE that enables visualization, interaction, and debugging of complex agentic applications
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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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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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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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Discover the power of LangChain's integration of LLMs with external data. Build transformative apps by combining language models with other sources.
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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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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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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!
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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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Manage your prompts, evaluate your chains, quickly build production-grade applications with Large Language Models.
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BenchLLM: Evaluate LLM responses, build test suites, automate evaluations. Enhance AI-driven systems with comprehensive performance assessments.
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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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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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PromptTools is an open-source platform that helps developers build, monitor, and improve LLM applications through experimentation, evaluation, and feedback.
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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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LazyLLM: Low-code for multi-agent LLM apps. Build, iterate & deploy complex AI solutions fast, from prototype to production. Focus on algorithms, not engineering.
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Robust and modular LLM prompting using types, templates, constraints and an optimizing runtime.
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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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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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SysPrompt is a comprehensive platform designed to simplify the management, testing, and optimization of prompts for Large Language Models (LLMs). It's a collaborative environment where teams can work together in real time, track prompt versions, run evaluations, and test across different LLM models—all in one place.
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Literal AI: Observability & Evaluation for RAG & LLMs. Debug, monitor, optimize performance & ensure production-ready AI apps.
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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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Thousands of developers use Streamlit as their go-to platform to experiment and build generative AI apps. Create, deploy, and share LLM-powered apps as fast as ChatGPT can compute!
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EasyLLM is an open source project that provides helpful tools and methods for working with large language models (LLMs), both open source and closed source. Get immediataly started or check out the documentation.
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Discover, compare, and rank Large Language Models effortlessly with LLM Extractum. Simplify your selection process and empower innovation in AI applications.
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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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Langflow is a dev tool for building and deploying AI-powered agents. It includes a visual authoring experience and built-in API server that turns every agent into an API. Supports all major LLMs, vector databases and a growing library of AI tools.
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TruLens provides a set of tools for developing and monitoring neural nets, including large language models.