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

# OpenAI GPT-5.1

export const Link = ({href, children, className, ...props}) => {
  const localizedHref = href;
  return <a href={localizedHref} className={className} {...props}>
      {children}
    </a>;
};

**OpenAI GPT-5.1** is a multimodal model designed for coding and agentic tasks with configurable reasoning effort.

## Model details

| Item                  | Value                    | Description                                                                                                                                                                                          |
| --------------------- | ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Model name            | **GPT-5.1**              | The name of the model.                                                                                                                                                                               |
| Model category        | **Premium**              | The category of the model: Standard or Premium.                                                                                                                                                      |
| API model name        | `openai__gpt_5_1`        | The name of the model that is used in the <Link href="/guides/box-ai/ai-agents/ai-agent-overrides">Box AI API for model overrides</Link>. The user must provide this exact name for the API to work. |
| Compliance            | **N/A**                  | Government compliance frameworks and authorizations applicable to this model.                                                                                                                        |
| Hosting layer         | **OpenAI**               | The trusted organization that securely hosts LLM.                                                                                                                                                    |
| Model provider        | **OpenAI**               | The organization that provides this model.                                                                                                                                                           |
| Release date          | **November 13th, 2025**  | The release date for the model.                                                                                                                                                                      |
| Knowledge cutoff date | **September 30th, 2024** | The date after which the model does not get any information updates.                                                                                                                                 |
| Input context window  | **400k tokens**          | The number of tokens supported by the input context window.                                                                                                                                          |
| Maximum output tokens | **128k tokens**          | The number of tokens that can be generated by the model in a single request.                                                                                                                         |
| Empirical throughput  | **Not specified**        | The number of tokens the model can generate per second.                                                                                                                                              |
| Open source           | **No**                   | Specifies if the model's code is available for public use.                                                                                                                                           |

## Additional documentation

For additional information, see [official OpenAI GPT-5 documentation][openai-gpt-5-model].

[openai-gpt-5-model]: https://platform.openai.com/docs/models/gpt-5.1