---
title: "Changes to Estimate Cost"
method: POST
path: "/cost/estimate"
---

# Changes to Estimate Cost

`POST /cost/estimate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 105 revisions.

- **2026-09-30** `85ac4287140e`: 18 info
- **2026-09-18** `082b5fabd909`: 2 info

## Changes

- **2026-09-30** `85ac4287140e`: 18 info
  - added the new optional request property `cache_creation_input_tokens`
  - added the new optional request property `cache_read_input_tokens`
  - added the new optional request property `reasoning_tokens`
  - added the optional property `cache_creation_cost_per_request` to the response with the `200` status
  - added the optional property `cache_creation_input_token_cost` to the response with the `200` status
  - added the optional property `cache_creation_input_tokens` to the response with the `200` status
  - added the optional property `cache_read_cost_per_request` to the response with the `200` status
  - added the optional property `cache_read_input_token_cost` to the response with the `200` status
  - added the optional property `cache_read_input_tokens` to the response with the `200` status
  - added the optional property `daily_cache_creation_cost` to the response with the `200` status
  - added the optional property `daily_cache_read_cost` to the response with the `200` status
  - added the optional property `daily_reasoning_cost` to the response with the `200` status
  - added the optional property `monthly_cache_creation_cost` to the response with the `200` status
  - added the optional property `monthly_cache_read_cost` to the response with the `200` status
  - added the optional property `monthly_reasoning_cost` to the response with the `200` status
  - added the optional property `output_cost_per_reasoning_token` to the response with the `200` status
  - added the optional property `reasoning_cost_per_request` to the response with the `200` status
  - added the optional property `reasoning_tokens` to the response with the `200` status
- **2026-09-18** `082b5fabd909`: 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status

---

[Operation](https://skmtc.dev/flock/apis/litellm-api/docs/cost/estimate/post.md) - [API](https://skmtc.dev/flock/apis/litellm-api.md) - [Page](https://skmtc.dev/flock/apis/litellm-api/changes/cost/estimate/post)