Alternatives to LangChain

Open-source LLM agent observability with tracing, evals, and experiments

OpenTelemetry-native observability with autonomous AI SRE Agent0, plus AI Coding Insights to monitor coding agents in production.

Open-source observability and evaluation for AI agents.

Mechanistic interpretability platform to understand, debug, and design AI models

LangSmith: AI agent observability, tracing, and evaluation platform

Open-source LLM observability that traces, evaluates, and manages prompts from prototype to production.

Simulation-first LLM observability, evals, and agent testing with Langy AI engineer.

AI observability and eval engineering platform that turns offline evals into production guardrails.

Community-driven AI leaderboard for ranking LLMs, agents, and coding models

AI observability and evals that auto-fix agent code via git

Open-source OpenTelemetry LLM observability for Python devs

Enterprise AI quality platform unifying LLM evaluation, observability, red teaming, and governance.

Open-source OpenTelemetry-native framework for evaluating and tracing AI agents

Open source AI engineering platform for building, debugging, and monitoring agents, LLMs, and ML models.

Track, forecast, and optimize AI spend across providers.

Simulation-based AI agent testing and evaluation platform that catches hallucinations before production.

Open-source AI observability with privacy-preserving logging and LLM security toolkit

Collaborative LLM dev platform for building, testing, and monitoring AI features.

Enterprise AI control plane uniting agentic observability, guardrails, and governance

Open-source workspace to build, evaluate, and deploy AI agents

TypeScript framework to build observable, production-grade AI agents and durable workflows.

Lyzr: Enterprise control plane to govern and deploy AI agents from PoC to production.

Simulate, evaluate, and observe your AI agents to ship reliable agents 5x faster.

Turn plain English into production-ready Honeycomb queries for faster debugging.

ML experiment tracking and LLM development platform for teams

Open-source product OS unifying analytics, session replay, feature flags, and a data warehouse.

Route, trace, and evaluate every LLM call from one platform

Centralized prompt management for ChatGPT, Claude, and Gemini.

Open-source framework for systematic LLM evaluation replacing vibe checks

Open-source AI evaluation and observability for LLMs, RAG, agents, and ML models.