What is Coze Loop?
Coze loop is a developer-focused platform designed to streamline the entire lifecycle of your AI agents. It directly addresses the complexities of agent development by providing a unified, open-source toolkit for everything from initial prompt engineering and debugging to rigorous evaluation and production monitoring. If you're building AI agents, Coze loop gives you the structure and insight needed to create more reliable and effective solutions.
Key Features
✍️ Streamline Prompt Engineering Stop guessing and start engineering. Coze loop’s visual Playground allows you to write, debug, and optimize prompts in real time. You can instantly compare outputs from different large language models (LLMs) side-by-side and manage your prompts with built-in version control, ensuring a systematic and efficient workflow.
📊 Automate and Standardize Agent Evaluation Gain confidence that your agent performs as expected. The evaluation module provides a systematic framework for automated testing. You can define evaluation sets and run experiments to measure agent performance against key metrics like accuracy, conciseness, and compliance, giving you objective data to guide your improvements.
🔍 Gain Deep Insight with Trace Observability When an agent's response is off, you need to know why—fast. Coze loop provides full-chain observability, capturing and visualizing every step of an agent’s execution process. From the initial prompt parsing to model invocations and tool execution, you get a clear trace that pinpoints errors and intermediate results, dramatically simplifying debugging.
Why Choose Coze loop?
An Open-Source Foundation for Unrestricted Development
Coze loop stands apart by offering its core foundational modules as a completely free and open-source edition. This approach removes barriers and puts you in full control. You can:
Innovate Freely: Access the essential tools for agent development, evaluation, and monitoring with zero licensing costs.
Customize and Extend: Modify the platform to fit your specific project requirements or integrate it deeply into your existing development environment.
Collaborate with a Community: Participate in a growing ecosystem of developers, share extensions, and contribute to the evolution of the platform.
Conclusion:
Coze loop provides the essential, integrated toolkit for modern AI agent development. By unifying prompt engineering, systematic evaluation, and deep observability on an open-source platform, it equips you to build, refine, and operate more powerful and predictable agents.
Start building, evaluating, and monitoring your AI agents with greater control and insight today!
FAQ
1. Is Coze loop only for large teams or enterprises? No, not at all. The open-source edition is specifically designed to be accessible to everyone, from individual developers and researchers to small startups and large enterprise teams. It provides a powerful, no-cost foundation for any AI agent project.
2. What LLMs can I use with Coze loop? The platform is built for flexibility. The open-source edition supports integration with various LLMs, including models from OpenAI and Volcano Ark, through its extensible Eino framework. The documentation provides a clear guide for configuring currently supported models and adding new ones.
3. How does the Coze loop SDK work with the open-source edition? The Coze loop SDK (available in three languages) is designed for both the commercial and open-source editions. To use it with your self-hosted open-source instance, you simply need to adjust a few configuration parameters during initialization to point the SDK to your local deployment. This enables you to report Trace data and interact with the platform programmatically.
More information on Coze Loop
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Coze Loop was manually vetted by our editorial team and was first featured on 2025-07-27.
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