---
title: "Changes to Video to video"
method: POST
path: "/v1/video_to_video"
---

# Changes to Video to video

`POST /v1/video_to_video`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 20 of 54 revisions.

- **2026-08-24** `efc9e5abc4d0` — 1 info
- **2026-08-18** `3f3a4647d82f` — 6 info
- **2026-08-07** `73a12c23285c` — 1 breaking, 3 info
- **2026-07-27** `e7d9a59ac7b0` — 1 breaking, 1 info
- **2026-07-06** `000c2b91e0f4` — 1 breaking, 1 info
- **2026-06-25** `39fa7be65d80` — 2 warning, 6 info
- **2026-06-17** `02b60786c778` — 1 breaking, 1 info
- **2026-06-17** `28f5cd401a4b` — 1 breaking, 3 info
- **2026-06-12** `e14f3ad9667d` — 1 info
- **2026-06-10** `410e415709b1` — 1 breaking, 1 info
- **2026-06-05** `b9cd8cc6392a` — 1 info
- **2026-06-03** `e0dcb5351f27` — 1 info
- **2026-06-02** `bb2963960c9b` — 1 info
- **2026-04-30** `1d3bb312672a` — 1 breaking
- **2026-04-15** `6f5bc53a0d36` — 1 info
- **2026-02-03** `3b56f3bc1863` — 2 info
- **2025-12-04** `6dab1bdab5d3` — 3 info
- **2025-12-03** `c2a88516fa0c` — 2 info
- **2025-12-03** `76b3962cf49e` — 2 info
- **2025-11-04** `6902fa9494c5` — 1 breaking, 7 warning, 3 info

## Changes

- **2026-08-24** `efc9e5abc4d0` — 1 info
  - added the new `sdr_rec709_10bit` enum value to the request property `oneOf[subschema #1]/outputFormat`
- **2026-08-18** `3f3a4647d82f` — 6 info
  - added the new `1080:1920` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
  - added the new `1248:1664` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
  - added the new `1440:1440` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
  - added the new `1664:1248` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
  - added the new `1920:1080` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
  - added the new `2206:946` enum value to the request property `oneOf[subschema #7: seedance2_5]/ratio`
- **2026-08-07** `73a12c23285c` — 1 breaking, 3 info
  - removed `subschema #1` from the request body `oneOf` list
  - added `subschema #1, subschema #2: hailuo3, subschema #7: seedance2_5` to the request body `oneOf` list
  - added the non-success response with the status `400`
  - added the required property `estimatedCost` to the response with the `200` status
- **2026-07-27** `e7d9a59ac7b0` — 1 breaking, 1 info
  - removed `subschema #1, subschema #2` from the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
  - added `subschema #1, subschema #2` to the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
- **2026-07-06** `000c2b91e0f4` — 1 breaking, 1 info
  - removed `subschema #1` from the request body `oneOf` list
  - added `subschema #1, subschema #4: seedance2_mini, subschema #5: gemini_omni_flash` to the request body `oneOf` list
- **2026-06-25** `39fa7be65d80` — 2 warning, 6 info
  - removed the request property `oneOf[subschema #2: seedance2]/references/items/position`
  - removed the request property `oneOf[subschema #3: seedance2_fast]/references/items/position`
  - added the new `2160:3840` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
  - added the new `2880:3840` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
  - added the new `3840:1646` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
  - added the new `3840:2160` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
  - added the new `3840:2880` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
  - added the new `3840:3840` enum value to the request property `oneOf[subschema #2: seedance2]/ratio`
- **2026-06-17** `02b60786c778` — 1 breaking, 1 info
  - removed `subschema #1, subschema #2` from the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
  - added `subschema #1, subschema #2` to the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
- **2026-06-17** `28f5cd401a4b` — 1 breaking, 3 info
  - removed `subschema #1, subschema #2` from the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
  - added the new optional request property `oneOf[subschema #1]/ratio`
  - added `subschema #1, subschema #2` to the `oneOf[subschema #1]/keyframes/items/` request property `anyOf` list
  - the request property `oneOf[subschema #1]/promptText` became optional
- **2026-06-12** `e14f3ad9667d` — 1 info
  - added the new optional request property `oneOf[subschema #1]/targetAspectRatio`
- **2026-06-10** `410e415709b1` — 1 breaking, 1 info
  - removed `subschema #1: gen4_aleph, subschema #2: aleph2` from the request body `oneOf` list
  - added `subschema #1` to the request body `oneOf` list
- **2026-06-05** `b9cd8cc6392a` — 1 info
  - added `subschema #4: seedance2_fast` to the request body `oneOf` list
- **2026-06-03** `e0dcb5351f27` — 1 info
  - added `subschema #3: seedance2` to the request body `oneOf` list
- **2026-06-02** `bb2963960c9b` — 1 info
  - added `subschema #2: aleph2` to the request body `oneOf` list
- **2026-04-30** `1d3bb312672a` — 1 breaking
  - removed `subschema #2: seedance2` from the request body `oneOf` list
- **2026-04-15** `6f5bc53a0d36` — 1 info
  - added `subschema #2: seedance2` to the request body `oneOf` list
- **2026-02-03** `3b56f3bc1863` — 2 info
  - the request property `oneOf[subschema #1: gen4_aleph]/ratio` became optional
  - request property `oneOf[subschema #1: gen4_aleph]/ratio` deprecated
- **2025-12-04** `6dab1bdab5d3` — 3 info
  - the `model` request property default value `gen4_aleph` was removed
  - the `type` request property default value `image` was removed
  - added the media type `application/json` for the response with the status `429`
- **2025-12-03** `c2a88516fa0c` — 2 info
  - the `model` request property default value `gen4_aleph` was added
  - the `type` request property default value `image` was added
- **2025-12-03** `76b3962cf49e` — 2 info
  - the `model` request property default value `gen4_aleph` was removed
  - the `type` request property default value `image` was removed
- **2025-11-04** `6902fa9494c5` — 1 breaking, 7 warning, 3 info
  - the request's body type/format changed from `object`/`` to ``/``
  - removed the request property `contentModeration`
  - removed the request property `model`
  - removed the request property `promptText`
  - removed the request property `ratio`
  - removed the request property `references`
  - removed the request property `seed`
  - removed the request property `videoUri`
  - added request discriminator
  - added `subschema #1: gen4_aleph` to the request body `oneOf` list
  - the `id` response's property pattern `^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12})$` was added for the status `200`

---

[Operation](https://skmtc.dev/runwayml/apis/runwayml-api/docs/v1/video_to_video/post.md) · [API](https://skmtc.dev/runwayml/apis/runwayml-api.md) · [Page](https://skmtc.dev/runwayml/apis/runwayml-api/changes/v1/video_to_video/post)