> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ai21.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

## Welcome to the AI21 Developer Platform!

AI21 provides AI systems and foundation models designed to address high-value, data-intensive workflows and real-world challenges. Our solutions are reliable, efficient, and transparent, especially effective for long-context tasks critical to enterprises, such as:

* Grounded question answering across lengthy documents
* Chat completion
* Financial data analysis
* Retrieval-Augmented Generation (RAG) workflows

## AI21 Maestro

AI21 Maestro is an advanced AI system for rapidly creating and deploying **knowledge agents** that automate high-value, data-intensive business tasks. It includes RAG capabilities, allowing models to retrieve information from a knowledge base of previously uploaded files using semantic search and web search.

At its core, AI21 Maestro features a new type of agent intelligence optimized to search, reason, validate, and adapt in real time, while staying within your cost and latency requirements. The system excels at self-validation and correction, continuously evaluating outputs against your specified goals.

Learn more about [AI21 Maestro](/docs/maestro-overview).

## Jamba Family of Open Models

Jamba models deliver up to **2.5× faster** inference than leading models of similar size. They are available for **private deployment**, including VPC and on-premises, and are optimized for tasks like:

* Long-context RAG
* Grounded QA
* Data classification

Jamba offers tailored performance for productivity tools, customer service, and internal knowledge agents. Learn more about the [Jamba Models](/docs/jamba-foundation-models).

***

## Flexible Deployments for the Enterprise

You can choose the option that meets your needs [here](https://www.ai21.com/deployment/).

## Accessing our Models and Solutions

You can access our tools and models through several mechanisms:

* **Python SDK:** We provide a [Python SDK](/docs/sdk) to simplify access to all our models and tools from your Python code. The SDK provides code completion tips, documentation, support for synchronous and asynchronous calls, and much more.

***

* **REST API:** Under the hood, our SDK, playground, and cloud platform implementations access our models through our [public REST API](/reference/jamba-1-6-api-ref).

***

* **Cloud platforms:** We provide model access from all the leading cloud providers. See the full list [here](/docs/model-availability-across-platforms).

***

* **Other third-party services:** Our models are also available on other third-party systems such as [LangChain](https://python.langchain.com/docs/integrations/chat/ai21/) and [LlamaIndex](https://docs.llamaindex.ai/en/stable/examples/llm/ai21/). Check your toolchain to see if AI21 is available.

## Next steps

* [Learn how to use our SDK](/docs/sdk).

***