# Use Grok Build with open models

[Open models](https://www.rightnowai.co/docs/open-models) / [Use Grok Build with open models](https://www.rightnowai.co/docs/open-models/guides/coding-agents/grok-build)

Updated 2026-11-11

Open models get their own `grok-run` command. Your `grok` command and settings stay unchanged.

**Connection**

| Connection | Value |
| --- | --- |
| Control site | `https://runinfra.ai` |
| Command | `runinfra` |
| Sign-in | Approve the device code in your browser. Keep your API key out of agent chat. |
| Billing | The existing funding rules of your open-model account. |

Replace `MODEL_ID` with an available id from [Open models](https://runinfra.ai/inference-api?utm_source=rightnowai.co&utm_medium=referral&utm_content=docs-open-models); read current capabilities, limits and prices from `GET /v1/models`.

## Set up

**Text**

```text
Set up the open-models service in this coding agent for me. Read https://runinfra.ai/docs/tools-sdks/agent-setup.md and follow it step by step. If you cannot open links, run `npx -y @runinfra/cli@latest --help` and follow its FOR CODING AGENTS section. I approve sign-in in my browser. Before you install anything, change this agent's settings or spend money, show me the plan and wait for my yes.
```

Paste it into your agent, approve sign-in in your browser, and say yes to the plan. [All steps](https://www.rightnowai.co/docs/open-models/guides/coding-agents)

## Start

Start `grok-run -m runinfra-MODEL_ID` with a model ID from the plan.

If needed, add `~/.config/runinfra/bin` to PATH (`%LOCALAPPDATA%\runinfra\bin` on Windows) to run commands by name.

## Undo

Ask your agent, in your usual `grok`, to disconnect the open-models service. This deletes `grok-run` with its sessions and history.

[Source reference](https://runinfra.ai/docs/tools-sdks/grok-build?utm_source=rightnowai.co&utm_medium=referral&utm_content=docs-open-models)

## Next

[Use Hermes with open models](https://www.rightnowai.co/docs/open-models/guides/coding-agents/hermes)