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Langfuse: Open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applic... It is listed under Data & Analytics on AI Registry with a free plan and paid upgrades.
The tools below are approved listings in the same category, ordered by how closely their tags match Langfuse. This is an automatic list. We have not written a researched verdict for Langfuse yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
Evaluate, test, and ship LLM applications with a suite of observability tools to calibrate language model outputs acr...
Opik is an open source AI observability and evaluation platform from Comet. It logs each step an agent takes, from user interactions to context retrieval and tool calls, and adds evaluation workflows to find and fix errors across development, testing and production. Tracing covers execution graphs, multi turn sessions...
Open-source tool for ML observability that runs in your notebook environment, by Arize. Monitor and fine-tune LLM, CV...
Arize Phoenix is an open source observability and evaluation tool for AI agents and LLM applications. It lets engineers trace what an application did, evaluate the quality of its outputs, run experiments and compare results, and debug failures. It can run locally with a single command or be self hosted inside a team's ...
Full-stack LLMOps platform to monitor, manage, and improve LLM-based apps.
Portkey is a production stack for teams building generative AI applications, combining an AI gateway, observability, guardrails, governance and prompt management in one platform. The site now announces that Portkey is PRISMA AIRS AI Gateway, generally available to enterprises, and presents it as a way to observe, gover...
Seamlessly integrate private, controlled, and compliant Large Language Models (LLM) functionality.
Prediction Guard is a self hosted control plane for AI agents, deployed inside the customer's own cloud account or security boundary. It sits between applications and the model, tool and compute layers, and is built on zero trust principles to identify, authorize, enforce, meter, record and contain the actions an agent...
Streamlines data management and analysis with AI-driven insights.
Accio is an AI business agent from Alibaba, now presented as Accio Work: an agentic business team for ecommerce founders and sourcing professionals. Its core job is product sourcing. The agent identifies suppliers, processes supplier quotes, runs niche analysis and supports negotiations, drawing on the trade data and i...
Create studio-ready vocals, choirs, and instruments from MIDI.
ACE Studio, now at version 2.0, is an AI music production platform that generates singing, instruments and complete tracks and then lets the user edit them with conventional production tools. Its Vocal Synth turns MIDI notes and lyrics into a sung performance using a library of more than 160 royalty free AI voices acro...