VideoGenReview

What each AI video model's release notes say changed

LTX changes by date, 2025 to 2026

LTX: 16 entries, 29 October 2025 to 2 September 2026, naming 2 versions from LTX-2.3 to LTX-2.5; 10 name no model. Apart from new models, most concern resolution, frame rate or shape and sound, voice or lip-sync. As of 2026-09-25.

Entries per line, this one markedA long bar means a detailed log, not necessarily a faster-moving model.Entries per line, this one markedKling AI3737Runway3131Wan2626PixVerse2020LTX1616Seedance1616Google Veo1515Luma Ray99Adobe Firefly Video77MiniMax Hailuo77Vidu77HappyHorse66Amazon Nova Reel55Gemini Omni55Grok Imagine44Midjourney video44Sora44
Fig. 1 A long bar means a detailed log, not necessarily a faster-moving model.
Entries per model line, read 2026-09-25.
LineEntries
Adobe Firefly Video7
Amazon Nova Reel5
Gemini Omni5
Google Veo15
Grok Imagine4
HappyHorse6
Kling AI37
LTX16
Luma Ray9
Midjourney video4
MiniMax Hailuo7
PixVerse20
Runway31
Seedance16
Sora4
Vidu7
Wan26

Inclusion rule. All seventeen lines on the register, each with its count of dated entries and version rows. Order. Alphabetical by line.

1What the notes say

Lightricks keeps a dated API changelog for LTX, one page per entry. It starts with the public API on 29 October 2025 and moves through retake editing, audio-to-video, camera motion and an extend endpoint to LTX-2.3 as the default model in March 2026 and LTX-2.5 in August. Six of its sixteen notes concern resolution or frame rate, ending with 1440p, 4K and 48 fps on the pro model in September 2026. Deprecation notices on the same log are not counted here.

2Every entry

LTX versions by first dated entryOne dot per named version, placed at its first dated entry.LTX versions by first dated entry2026-03-05LTX-2.32026-08-10LTX-2.5
Fig. 2 One dot per named version, placed at its first dated entry.
Every LTX entry, oldest first.
DateVersionWhat changedSource
29 October 2025Not named in the noteThe LTX API opens with text-to-video and image-to-videoMaker's note
25 November 2025Not named in the noteRetake edits a chosen section of a video from a promptMaker's note
9 December 2025Not named in the noteAudio-to-video drives a clip from an audio trackMaker's note
23 December 2025Not named in the noteThe developer console opens to self-service sign-upMaker's note
1 January 2026Not named in the noteCamera motion settings for text-to-video and image-to-videoMaker's note
18 February 2026Not named in the noteAn extend endpoint adds frames at the start or the endMaker's note
5 March 2026LTX-2.3LTX-2.3 becomes the default model in two variantsMaker's note
23 April 2026Not named in the noteAn HDR conversion endpoint turns SDR clips into HDR framesMaker's note
3 May 2026Not named in the noteAsync versions of every video generation endpoint, in betaMaker's note
7 July 2026Not named in the noteReframe fills in missing areas to fit a new resolutionMaker's note
2 August 2026LTX-2.3A 720p output tier for LTX 2.3Maker's note
10 August 2026LTX-2.5The fast LTX-2.5 model can choose the clip length from the promptMaker's note
11 August 2026LTX-2.5LTX-2.5 models in portrait and landscape, with the fast one up to 4KMaker's note
18 August 2026LTX-2.5Audio-to-video gets the same resolution tiers as the other modesMaker's note
19 August 2026Not named in the noteAudio-to-video takes a frame rate, a last frame and camera motionMaker's note
2 September 2026LTX-2.5LTX-2.5 Pro renders 1440p and 4K in both orientations and takes 48 fpsMaker's note

Inclusion rule. All entries on the register for this line: the maker's notes, platform arrivals and undated rows. Order. By date, oldest first; undated rows last.

3Each entry with its source

  • LTX Video API Launch
    The LTX API opens with text-to-video and image-to-videoLTX, API changelog / since 2025-10-29 / checked 2026-09-25
  • Retake (Video Editing) Endpoint
    Retake edits a chosen section of a video from a promptLTX, API changelog / since 2025-11-25 / checked 2026-09-25
  • Audio-to-Video API
    Audio-to-video drives a clip from an audio trackLTX, API changelog / since 2025-12-09 / checked 2026-09-25
  • Developer Console Public Launch
    The developer console opens to self-service sign-upLTX, API changelog / since 2025-12-23 / checked 2026-09-25
  • Camera Motion Effects
    Camera motion settings for text-to-video and image-to-videoLTX, API changelog / since 2026-01-01 / checked 2026-09-25
  • Extend Video Endpoint
    An extend endpoint adds frames at the start or the endLTX, API changelog / since 2026-02-18 / checked 2026-09-25
  • LTX-2.3
    LTX-2.3 becomes the default model in two variantsLTX, API changelog / since 2026-03-05 / checked 2026-09-25
  • HDR Video Conversion (Beta)
    An HDR conversion endpoint turns SDR clips into HDR framesLTX, API changelog / since 2026-04-23 / checked 2026-09-25
  • Async API
    Async versions of every video generation endpoint, in betaLTX, API changelog / since 2026-05-03 / checked 2026-09-25
  • Video Reframe
    Reframe fills in missing areas to fit a new resolutionLTX, API changelog / since 2026-07-07 / checked 2026-09-25
  • 720p video generation
    A 720p output tier for LTX 2.3LTX, API changelog / since 2026-08-02 / checked 2026-09-25
  • 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
  • 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
  • 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
  • Audio-to-video generation params
    Audio-to-video takes a frame rate, a last frame and camera motionLTX, API changelog / since 2026-08-19 / checked 2026-09-25
  • 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

4Versions

  • LTX-2.3: 2 entries, from 5 March 2026
  • LTX-2.5: 4 entries, from 10 August 2026
  • Not named in the note: 10 entries

5Kinds of change

6Latest dated entry

2 September 2026, LTX-2.5: LTX-2.5 Pro renders 1440p and 4K in both orientations and takes 48 fps.

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

LTX, API changelog

7Neighbouring lines

8Notes read

How entries are chosen and sorted: the method.