> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # AnthropicCacheCreation ## Fields | Field | Type | Required | Description | | - | - | - | - | | `ephemeral_1h_input_tokens` | *int* | ✔️ | N/A | | `ephemeral_5m_input_tokens` | *int* | ✔️ | N/A |