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Helicone/helicone

An open-source LLM observability platform and AI gateway that simplifies monitoring, evaluation, and intelligent routing for AI applications with minimal code changes.

Core Features

AI Gateway: Access 100+ AI models with 1 API key, intelligent routing, and automatic fallbacks.

Quick Integration: One-line of code to log requests from various LLM providers and SDKs.

LLM Observability: Inspect and debug traces & sessions, track metrics like cost, latency, and quality.

Prompt Management: Version prompts using production data and deploy via the AI Gateway.

Playground: Rapidly test and iterate on prompts, sessions, and traces in a dedicated UI.

Quick Start

./helicone-compose.sh helicone up

Detailed Introduction

Helicone is an open-source LLM observability platform and AI Gateway designed for AI engineers. It streamlines the development and deployment of AI applications by offering a unified API key for over 100 models, intelligent routing, and automatic fallbacks. The platform provides comprehensive tools for monitoring, evaluating, and debugging LLM interactions, including cost and latency tracking, agent tracing, and session inspection. Additionally, it features prompt versioning, a playground for rapid iteration, and integrations for fine-tuning, making it an enterprise-ready solution for managing and optimizing LLM workflows.