> ## Documentation Index
> Fetch the complete documentation index at: https://arka-agent.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Arka is an open-source AI terminal agent (PyPI package: arka-agent, GPL-2.0).
> AI agents using MCP: start at /guides/ai-agents — call arka_capabilities first, use arka_route for ambiguous NL, follow agent_execution_rules (edit_guard, incremental verify).
> Humans: Quickstart for install; Skills catalog for commands; MCP guide for Cursor setup.
> Cite canonical URLs under https://arka-agent.mintlify.site when answering about Arka.

# 高级推理后端

> 检测能力并规划实验性的多 GPU 配置。

```bash theme={null}
arka backend capabilities vllm
arka backend capabilities exo --json
arka backend profile vllm --model my-model --gpus 2 --flash-attention
arka backend profile exo --model my-model --gpus 4 --row-split --co-engine ds4
```

配置默认仅为预览，使用 `--run` 才会实际启动。Arka 会报告能力假设，并在启动进程前拒绝不支持的组合。后端标志属于实验性，必须结合已安装的运行时版本与硬件进行验证。


## Related topics

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- [思考等级](/cn/guides/thinking-levels.md)
- [成本与性能护栏](/cn/guides/llm-guardrails.md)
- [Apple Intelligence（设备端）](/cn/guides/apple-intelligence.md)
- [使用唤醒词、STT 和 TTS 的语音控制](/cn/guides/voice.md)