Open Source Alternatives to Langfuse GmbH

Together AI offers an AI-native cloud platform providing high-performance inference APIs, GPU clusters, and fine-tuning capabilities for open-source AI models.

An open-source feature store for managing and serving data for AI/ML models in production.

An open-source platform for building, simulating, evaluating, and optimizing reliable AI agents.

Open-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.

An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby.

An open-source Python library providing a unified interface for interacting with various LLM providers.

A managed, private, and production-grade environment for OpenClaw, offering access to over 500 AI models and essential tools.

Open-source alert management platform using AI to reduce noise and improve alert actionability for engineers.

An open-source, end-to-end AI agent engineering platform for simulating, evaluating, and optimizing LLM applications.

An open-source platform for tracing, evaluating, and debugging AI agents and LLM applications.

Company

An open-source framework for building, operating, and benchmarking Multimodal Language Model (MLM) agents across diverse environments.

Commercializes the open-source Grafana observability platform with AI features.

An open-source AI and machine learning platform for enterprises.

An open-source platform for building and deploying AI agents and workflows.

Persistent memory layer for AI agents and applications.

Run large language models locally on your machine.

The Google of code search for open-source.

A community-driven marketplace for discovering and deploying Model Context Protocol (MCP) servers and clients.

An AI deep research API and web console that generates adversarially reviewed reports with verified citations and stores sources in a persistent, searchable vault.

Parlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.

Experimental open-source framework for building self-building autonomous agents with a novel function framework.

An open-source platform for creating, managing, and interacting with AI workflows and agents.

A C/C++ tensor library for efficient machine learning inference on consumer hardware.

Open-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications.

Open-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.

Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.

Open-source AI platform engineering team member for production environments, automating tasks and learning tools.

A unified data analytics and AI platform built on the lakehouse architecture.

High-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.

Developing advanced AI models with a focus on reducing hallucinations, including large language models, vision language models, and text-to-video models.

Open-source business intelligence and embedded analytics platform.

Open-source tool to transform application data into accessible knowledge for AI agents.

Open-access AI cloud platform providing affordable, on-demand GPUs for training and serving AI models.

Open-core company building tools for modern backend engineers to ship faster and better.

The open-source platform for labeling image, video, 3D point cloud, and audio data at scale to train artificial intelligence.

Elementary Data provides a unified data control plane for the AI era, offering observability, quality, governance, and discovery for data and AI reliability.

DeepSeek is a Chinese AI company developing open-weight large language models and an AI assistant, aiming to achieve Artificial General Intelligence.

Track experiments, validate models, and collaborate with confidence using Skore, the methodology layer for AI coding tools.

Open-source platform for ML experiment tracking and data versioning.

Industry-standard API simulation and mocking platform for reliable software development and testing.

Self-hosted AI inference platform for enterprises.

Provides tools and services for automated browser testing and scraping.

Open-source library for building hyper-realistic voice agents and conversational AI applications.

Open-source, Typescript-native agentic workflow builder for natural language to code generation.

An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.

Ground AI in enterprise data with zero ETL. Spice is an open-source SQL query & hybrid search engine built for data-intensive apps & AI agents.

Open-source Kubernetes-native testing framework for CI/CD.

Cua provides an open-source framework and cloud desktops for AI agents to control operating systems and desktop applications across Linux, Windows, macOS, and Android.

Low-code platform for building, iterating, and deploying AI applications, especially RAG and multi-agent systems.

Open-source Node.js backend development platform for accelerating application development.

ComputeSDK provides an open-source platform for benchmarking cloud infrastructure, including AI gateways, sandboxes, storage, and browsers, and offers a unified SDK for running code in remote sandboxes.

A suite of open-source and professional tools for API design, development, documentation, and testing.

Open-source platform for managing the ML lifecycle, from experimentation to deployment.

Inconvo is an open-source platform for building data agents on production data with safe queries, permissions, and structured outputs.

Open-source foundation model for music generation with state-of-the-art performance, turning text prompts into complete, high-quality songs.