Best Sazabi Alternatives

Langfuse is an open-source LLM engineering platform with 29K+ GitHub stars for tracing, evaluating, and monitoring AI applications. Acquired by ClickHouse, it provides detailed traces of LLM calls, prompt management with versioning, dataset-based evaluation, user feedback collection, and cost tracking. Framework-agnostic with native integrations for LangChain, LlamaIndex, OpenAI SDK, and Vercel AI SDK. Offers both self-hosted deployment and a managed cloud service.

AgentOps is an observability platform for monitoring, debugging, and managing AI agents. It provides session replay, event timelines, tool-call and LLM tracing, cost tracking, and dashboards for multi-agent workflows. Integrations span OpenAI, CrewAI, AutoGen, LangChain, LangGraph, LlamaIndex, Google ADK, OpenAI Agents, xAI, and 400+ LLMs/frameworks.

W&B Weave is the LLM observability and evaluation toolkit from Weights & Biases. It provides automatic tracing of LLM calls with full input/output logging, cost and latency tracking, evaluation pipelines with custom scorers, and a trace explorer for debugging multi-step agent workflows. Integrates with OpenAI, Anthropic, LangChain, and CrewAI via simple Python/TypeScript decorators.