VideoGenReview

What each AI video model's release notes say changed

LTX-2.5: every dated change

LTX-2.5, in the LTX line: 4 entries, 10 August 2026 to 2 September 2026, covering length, new model, resolution and sound. Dated before it in this line: LTX-2.3. As of 2026-09-25.

LTX-2.5 entries by dateOne dot per dated entry.LTX-2.5 entries by date2026-08-10The fast LTX-2.5 model can choose the clip…2026-08-11LTX-2.5 models in portrait and landscape…2026-08-18Audio-to-video gets the same resolution tiers…2026-09-02LTX-2.5 Pro renders 1440p and 4K in both…
Fig. 1 One dot per dated entry.
Every LTX-2.5 entry, oldest first, read 2026-09-25.
DateWhat changedKindsSource
10 August 2026The fast LTX-2.5 model can choose the clip length from the promptlengthMaker's note
11 August 2026LTX-2.5 models in portrait and landscape, with the fast one up to 4Knew model, resolutionMaker's note
18 August 2026Audio-to-video gets the same resolution tiers as the other modessound, resolutionMaker's note
2 September 2026LTX-2.5 Pro renders 1440p and 4K in both orientations and takes 48 fpsresolutionMaker'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 LTX-2.5 cluster around clip length or extension, a new model or snapshot and resolution, frame rate or shape.

1Each entry

10 August 2026, from LTX, API changelog

letting the model choose the clip length from your prompt.

LTX, API changelog
  • Automatic duration
    The fast LTX-2.5 model can choose the clip length from the promptLTX, API changelog / since 2026-08-10 / checked 2026-09-25

11 August 2026, from LTX, API changelog

New LTX-2.5 models for Text-to-Video, Image-to-Video, and Audio-to-Video, in portrait and landscape

LTX, API changelog
  • LTX-2.5
    LTX-2.5 models in portrait and landscape, with the fast one up to 4KLTX, API changelog / since 2026-08-11 / checked 2026-09-25

18 August 2026, from LTX, API changelog

now supports the same resolution tiers as text-to-video and image-to-video

LTX, API changelog
  • Audio-to-video resolution parity
    Audio-to-video gets the same resolution tiers as the other modesLTX, API changelog / since 2026-08-18 / checked 2026-09-25

2 September 2026, from LTX, API changelog

now generates 1440p and 4K in 16:9 and 9:16, and accepts 48 fps

LTX, API changelog
  • ltx-2-5-pro 1440p
    LTX-2.5 Pro renders 1440p and 4K in both orientations and takes 48 fps4K, and 48 fpsLTX, API changelog / since 2026-09-02 / checked 2026-09-25

2Versions either side in this line

  • Dated before it: LTX-2.3, 2 entries, first dated 5 March 2026.
  • Dated after it: none in the register.

3Same kinds of change elsewhere, within six weeks

  • 30 June 2026, Gemini Omni: Gemini Omni Flash
  • 22 July 2026, PixVerse: Not named in the note
  • 22 July 2026, Seedance: Seedance 2.0
  • 31 July 2026, Grok Imagine: Grok Imagine 1.5
  • 6 August 2026, Seedance: Seedance 2.5 (arrival on Higgsfield)
  • 6 August 2026, Seedance: Seedance 2.5 (arrival on Luma)
  • 6 August 2026, Wan: Wan 3.0
  • 10 August 2026, Runway: Gen-4.5
  • 11 August 2026, Seedance: Seedance 2.5
  • 13 August 2026, Grok Imagine: Grok Imagine 1.5
  • 14 August 2026, Seedance: Seedance 2.5
  • 15 August 2026, Seedance: Seedance 2.5

6 more such entries are on the quarter pages.

The whole line: LTX. Quarter: Q3 2026.

4Notes read