VideoGenReview

What each AI video model's release notes say changed

What Gen-4 changed, by its release notes

Gen-4, in the Runway line: 4 entries, 1 April 2025 to 25 June 2025, covering new model, tiers and references. Dated before it in this line: Act-One. As of 2026-09-25.

Gen-4 entries by dateOne dot per dated entry.Gen-4 entries by date2025-04-01Gen-4 is released for paid plans2025-04-07Gen-4 Turbo, the faster tier, opens to all…2025-04-30Gen-4 References keeps characters…2025-06-25An update to Gen-4 References improves object…
Fig. 1 One dot per dated entry.
Every Gen-4 entry, oldest first, read 2026-09-25.
DateWhat changedKindsSource
1 April 2025Gen-4 is released for paid plansnew modelMaker's note
7 April 2025Gen-4 Turbo, the faster tier, opens to all userstiersMaker's note
30 April 2025Gen-4 References keeps characters and locations consistentreferencesMaker's note
25 June 2025An update to Gen-4 References improves object consistencyreferencesMaker's note

Inclusion rule. All entries filed under this version: the maker's notes, platform arrivals and undated rows. Order. By date, oldest first; undated rows last.

The entries for Gen-4 cluster around a new model or snapshot, a faster or lighter tier and references or consistency.

1Each entry

1 April 2025, from Runway, changelog

A new way to generate fast, controllable and production-ready media.

Runway, changelog
  • Gen-4 is now available
    Gen-4 is released for paid plansRunway, changelog / since 2025-04-01 / checked 2026-09-25

7 April 2025, from Runway, changelog

Our fastest and most efficient video model. Now available to all users.

Runway, changelog
  • Gen-4 Turbo
    Gen-4 Turbo, the faster tier, opens to all usersRunway, changelog / since 2025-04-07 / checked 2026-09-25

30 April 2025, from Runway, changelog

Generate consistent characters, locations and more.

Runway, changelog
  • Gen-4 References
    Gen-4 References keeps characters and locations consistentRunway, changelog / since 2025-04-30 / checked 2026-09-25

25 June 2025, from Runway, changelog

An updated version of Gen-4 References that significantly improves object consistency and prompt adherence.

Runway, changelog
  • Gen-4 References: Improved Object Consistency
    An update to Gen-4 References improves object consistencyRunway, changelog / since 2025-06-25 / checked 2026-09-25

2Versions either side in this line

  • Dated before it: Act-One, 2 entries, first dated 25 October 2024.
  • Dated after it: Act-Two, 1 entry, first dated 17 July 2025.

3Same kinds of change elsewhere, within six weeks

  • 27 February 2025, Wan: Wan 2.1
  • 14 May 2025, Wan: Wan 2.1

The whole line: Runway. Quarter: Q2 2025.

4Notes read