Alternatives to Osmosis

Open-source benchmark for AI agents on multi-step, real-world software company tasks.

Zhipu GLM delivers open-source LLM models, MaaS APIs, and autonomous agents for Chinese enterprises and developers.

LangSmith is an AI agent observability platform for tracing, monitoring, and evaluating LLM apps and long-running agents.

OpenAI Agents SDK: Lightweight Python framework for building multi-agent workflows with handoffs, sandboxing, and voice.

Arena AI is a free, community-voted LLM leaderboard ranking chat models, agents, and fullstack code on live head-to-head battles.

Durable execution for background jobs, workflows, and AI agents — written in your own code

Mastra is an open-source TypeScript agent framework for building durable AI agents and workflows that run for days.

The integration layer for AI agents: managed auth + 10,000+ tools across 3,000+ APIs.

Hugging Face's barebones Python library for AI agents that act by writing code.

Microsoft's open-source SDK for building production-grade AI agents with plugins, memory, and orchestration.

Microsoft's open-source, code-first agent framework for stateful, data-intensive conversational tasks.

Pydantic AI is the Python AI SDK for typed agents, realtime voice, image generation, and embeddings — every model a string swap away.

Open-source LLM that turns natural language into API calls for tool-using agents

Open-source, self-hosted AI agent that plans tasks, runs tools, and evolves memory across 10+ channels.

Open-source AI agent that learns from you and automates tasks across 20+ chat platforms

Free, MIT-licensed local dashboard that reads your AI coding agents' log files to show tokens, cost, and traces — no SDK or API key.

Open-source multi-agent framework for role-based software engineering

The frontend stack for agentic user experience — drop-in chat, generative UI, and shared state for React apps on any AG-UI backend

Agent evaluation and simulation platform that catches hallucinations before they reach production

Imbue is an open AI lab building coding agent tools that run in parallel and answer to you, not a vendor.

Microsoft's framework for building production-grade agentic AI on Azure, with Python, C#, and Go SDKs and a GA Agent Harness runtime.

Microsoft's open-source framework for building multi-agent AI workflows.

Agent enablement platform for governing, testing, and optimizing AI agent skills across your dev team.

Turn plain English into production-ready Honeycomb queries and debug faster with AI Copilot.

Agentic AI for the entire DevSecOps lifecycle in GitLab.

Open-source agentic AI data assistant for SQL, code, and reports

Flowith is an agentic canvas for multimodal AI creation with persistent context.

Marketplace for ready-made AI agent skills you can run, publish, and monetize.

Open-source desktop AI agent with autonomous learning loop and deep memory

Self-hosted cloud dev environments with governed AI agent and LLM control for enterprises.