---
title: "Changes to Generate Images"
method: POST
path: "/v1/images/generations"
---

# Changes to Generate Images

`POST /v1/images/generations`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 6 of 29 revisions.

- **2026-03-18** `af32b402b5fc` — 1 info
- **2026-03-05** `8c335444d304` — 2 breaking, 1 warning, 6 info
- **2026-02-26** `cc740030b11e` — 1 info
- **2026-02-25** `9cc8f20f40c8` — 2 breaking, 2 info
- **2026-02-21** `6e8acd7c094d` — 1 info
- **2026-02-09** `bb6f89ac9cd3` — 1 info

## Changes

- **2026-03-18** `af32b402b5fc` — 1 info
  - added the new optional request property `temperature`
- **2026-03-05** `8c335444d304` — 2 breaking, 1 warning, 6 info
  - request property `resolution` was restricted to a list of enum values
  - request property `resolution` list-of-types was narrowed by removing types `null` from media type `application/json`
  - removed the request property `size`
  - added the new optional request property `aspect_ratio`
  - added the new `1K` enum value to the request property `resolution`
  - added the new `2K` enum value to the request property `resolution`
  - added the new `4K` enum value to the request property `resolution`
  - added the optional property `image_format` to the response with the `200` status
  - the `output_type` response's property default value changed from `base64` to `both` for the status `200`
- **2026-02-26** `cc740030b11e` — 1 info
  - the `model` request property default value changed from `gemini-3-flash` to `gemini-3.1-flash`
- **2026-02-25** `9cc8f20f40c8` — 2 breaking, 2 info
  - the response property `image_base64` became optional for the status `200`
  - response property `image_base64` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
  - added the optional property `image_url` to the response with the `200` status
  - added the optional property `output_type` to the response with the `200` status
- **2026-02-21** `6e8acd7c094d` — 1 info
  - added the new optional request property `resolution`
- **2026-02-09** `bb6f89ac9cd3` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/elicitlabs/apis/elicit-labs-api/docs/v1/images/generations/post.md) · [API](https://skmtc.dev/elicitlabs/apis/elicit-labs-api.md) · [Page](https://skmtc.dev/elicitlabs/apis/elicit-labs-api/changes/v1/images/generations/post)