> For the complete documentation index, see [llms.txt](https://docs.montecarlo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.montecarlo.io/features/modular-ai.md).

# Modular AI

Monte Carlo has proposed a novel modular architecture to provide reliable and affordable AI services for applications and smart contracts.

The token on the chain is key to the modular architecture, and it will trigger the actions of offchain worker such as coordinator, validator and orchestrator.

<figure><img src="/files/cfFJk4RBTz6uL5RStCqt" alt=""><figcaption></figcaption></figure>

There are mainly three types of offchain workers:

* **Coordinator**: Distribute AI instructions to nodes that can complete them, such as inferencing.
* **Validator**: Verify the results of task execution to avoid malicious nodes based on the optimistic algorithm.
* **Orchestrator**: Orchestrate complex AI tasks via instruction flow to meet the demand for task combinations.


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