> ## 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.

# OCR + vLLM 证据

> 让图像回答同时基于 OCR 与模型解读。

让图像回答同时基于 OCR 与模型解读：

```bash theme={null}
pip install pytesseract pillow
arka vision-evidence screen.png "What price is shown?" \\
  --model-view "The visual model sees a price label reading $10"
arka vision-evidence screen.png "What price is shown?" --json
```

Arka 会报告 OCR 的识别结果、视觉/vLLM 模型的判断，以及一个综合回答，
标明二者的一致、冲突与不确定之处。它不会把模型的猜测悄悄当作文本证据。
支持使用自然语言请求。


## Related topics

- [图像描述、OCR 和屏幕截图](/cn/guides/vision.md)
- [开发工作的视频证据](/cn/guides/video-evidence.md)
- [vLLM 兜底](/cn/guides/vllm.md)
- [AI 智能体指南 — 通过 MCP 使用 Arka](/cn/guides/ai-agents.md)
- [生命科学（Anthropic 市场）](/cn/guides/life-sciences.md)