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

# max_input_tokens_exceeded

> Your prompt is over the model's context window.

**Code**: `max_input_tokens_exceeded`
**HTTP status**: `400`
**Type**: `invalid_request`

## When it fires

The total tokens on your chat or embedding request (system + prior turns + current input, including multimodal parts) exceed the model's `aurous_metadata.context_window`. No charge — any held credits are released.

## How to recover

Trim the input (shorter system prompt, fewer prior turns, smaller images / videos, lower `detail`), or switch to a model with a larger context window. The window is on the model row at [`GET /v1/models`](/api-reference/openapi#tag/models).