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

# AI Chat Workspace

> Start conversations, switch between 25+ AI models mid-chat, upload files, and use extended thinking — all from one unified interface.

The DeepMask chat workspace is your central hub for interacting with 25+ AI models from providers including OpenAI, Anthropic, Google, Mistral, DeepSeek, Grok, Meta, and Alibaba. You can start a conversation, swap models at any point without losing context, upload documents and images for analysis, and toggle advanced capabilities on demand — all without managing separate subscriptions or logins.

## Starting a new chat

<Steps>
  <Step title="Open the chat workspace">
    Navigate to the DeepMask workspace. Click **New Chat** in the left sidebar to open a fresh conversation.
  </Step>

  <Step title="Select a model">
    Use the model selector at the top of the chat input area to choose your starting model. A description and capability list appears for each model before you confirm.
  </Step>

  <Step title="Type your message">
    Enter your prompt in the input field and press **Enter** or click the send button to begin the conversation.
  </Step>
</Steps>

## Switching models mid-conversation

You are never locked in to the model you started with. You can switch to a different model at any point in a conversation and the new model receives the full conversation history as context.

<Steps>
  <Step title="Open the model selector">
    Click the model name displayed above the chat input field at any point during the conversation.
  </Step>

  <Step title="Choose a new model">
    Select any available model from the list. The switch takes effect on your next message.
  </Step>
</Steps>

<Tip>
  Switch to a reasoning-focused model like Kimi K2 or GPT-o3 Mini when a task requires multi-step analysis, then return to a faster model for follow-up questions.
</Tip>

## Extended thinking

Some models support extended thinking, which gives the AI additional processing time to reason through complex problems before responding.

<Steps>
  <Step title="Enable extended thinking">
    Click the **Extended thinking** toggle in the chat toolbar, below the message input field.
  </Step>

  <Step title="Send your prompt">
    Submit your message as normal. The model will show a thinking indicator while it works through the problem, then deliver a more thorough response.
  </Step>
</Steps>

<Note>
  Extended thinking is available on models that support it. The toggle is hidden automatically when the selected model does not support this capability.
</Note>

## Uploading files

You can upload documents and images directly into a chat for analysis, summarization, or reference.

<Steps>
  <Step title="Attach a file">
    Click the attachment icon in the chat input area, or drag and drop a file into the chat window.
  </Step>

  <Step title="Add context">
    Type a prompt alongside the file to tell the model what you want — for example, "Summarize this document" or "What does this chart show?"
  </Step>

  <Step title="Send">
    Submit the message. The model processes the file and responds based on its contents.
  </Step>
</Steps>

<Info>
  Uploaded files are processed within EU infrastructure and are never used to train AI models.
</Info>

## Model capabilities

Each model in DeepMask lists the capabilities it supports. You can see these in the model selector before choosing.

<CardGroup cols={2}>
  <Card title="Web search" icon="magnifying-glass">
    Query the web in real time and receive cited, up-to-date answers without leaving the conversation.
  </Card>

  <Card title="Documents" icon="file-lines">
    Upload and analyze PDFs, Word files, text files, and other document formats.
  </Card>

  <Card title="Image analysis" icon="image">
    Send images and ask the model to describe, extract data from, or reason about visual content.
  </Card>

  <Card title="Data analyst" icon="chart-bar">
    Upload spreadsheets and CSVs for AI-generated charts, insights, and summaries.
  </Card>

  <Card title="Reasoning" icon="brain">
    Deep, multi-step logical reasoning for complex research, coding, or analytical tasks.
  </Card>

  <Card title="Canvas" icon="pen-to-square">
    An interactive editing surface for drafting and refining long-form content collaboratively with the model.
  </Card>
</CardGroup>