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

# Looking up Atlas AI reference information

> Look up language models, agent tools, runtime versions, and project limits for Atlas AI agents.

<CardGroup cols={2}>
  <Card title="Language model library" icon="microchip" href="/cdf/atlas_ai/references/atlas_ai_agent_language_models">
    Available models, release dates, and retirement timelines by cloud region.
  </Card>

  <Card title="Agent tools library" icon="wrench" href="/cdf/atlas_ai/references/atlas_ai_agent_tools">
    Browse all built-in tools by category with configuration options for each.
  </Card>

  <Card title="Query tool" icon="database" href="/cdf/atlas_ai/references/atlas_ai_query_tool">
    Configuration reference for listing, searching, aggregating, and retrieving instances.
  </Card>

  <Card title="Run Python code" icon="code" href="/cdf/atlas_ai/references/atlas_ai_agent_python_tool">
    Supported parameter types, code structure, and execution environment limits.
  </Card>

  <Card title="Call Function" icon="bolt" href="/cdf/atlas_ai/references/atlas_ai_call_function_tool">
    Connect an agent to a deployed Cognite Function.
  </Card>

  <Card title="Agent runtime versions" icon="clock" href="/cdf/atlas_ai/references/atlas_ai_agent_runtime_versions">
    Runtime versions, feature support, upgrade guidance, and project limits.
  </Card>
</CardGroup>