About this model or application
LTX-2, 2.3 and 2.5 offer trainable weights; API capability and price vary by Fast/Pro version.
Family & other versions14 sources
Background for the family or other versions. These sources are counted separately from evidence for this release.
Family & other versions
Current model page identifies LTX-2.5 as a 22B joint audio-video model with open-weight, API and local deployment.
Family & other versions
API offers ltx-2-5-fast/pro and ltx-2-3-fast/pro; only 2.3 Pro supports retake and extend endpoints.
Family & other versions
Video creation is charged per output second and resolution. 720p 2.5 Fast/Pro cost USD 0.09/0.12; 2.3 Fast/Pro cost USD 0.03/0.04.
Family & other versions
Official index assigns LICENSE-2 to old LTX-2 and pre-August-11 LTX-2.3; LICENSE-2_x covers LTX-2.5 released since August 11, 2026.
Family & other versions
The old weight license requires a paid agreement for entities with at least USD 10M annual revenue.
Family & other versions
New weight license retains a USD 10M annual revenue threshold for commercial entities and includes use and redistribution conditions.
Family & other versions
Official LTX-2 card displays a nominal 19B model with trainable bf16, quantized and distilled checkpoints for local synchronized audio-video generation.
Family & other versions
The specific LTX-2.3 card lists 22B dev and distilled models; bundled license and README body links disagree.
Family & other versions
The official Lightricks model card supplies separate ltx-2.5-22b dev and distilled DiT transformer checkpoints, confirming the nominal 22B backbone. It lists a separate Gemma 4 12B text encoder, video/audio VAEs and upscalers. Established generation accepts text, image and video inputs to produce synchronized video and audio; the dev transformer is fully trainable.
Family & other versions
Directly readable original LTX-2 model card lists 19b dev, quantized and distilled checkpoints with local inference and training.
Family & other versions
Official LTX-2 repository metadata reports 18,876,174,592 safetensors parameters, consistent with the model page rounded 19B size.
Family & other versions
Original LTX-2.3 card lists 22B checkpoints and exposes differing frontmatter/body license links.
Family & other versions
LTX-2.3 repository metadata names its 22b files and retains the old LICENSE-2 link at the checked revision.
Family & other versions
The actual license distributed with the checked LTX-2.3 weights is the January 5, 2026 LTX-2 Community agreement.
Model family catalog3
Current models
Official catalogLTX-2AvailableOpen weights
- Model ID
Lightricks/LTX-2- Released
- Not stated
- Availability
- Available
- Input
- Text · Image · Audio · Video
- Output
- Video · Audio
- Parameters
- 19B
- Deployment / access
- Open weights · Local
- Weights
- Open weights
- License
- LTX-2 Community License
- Capabilities
- Fine-tuning
Current official API catalog does not list LTX-2; this record only confirms open weights and local inference. Weight licensing is distinct from Apache-2.0 app/code licensing. Annual revenue >= USD 10M triggers paid commercial licensing; use the agreement corresponding to the checkpoint.
LTX-2.3AvailableOpen weightsAPI
- Model ID
Lightricks/LTX-2.3- Released
- Not stated
- Availability
- Available
- Input
- Text · Image · Audio · Video
- Output
- Video · Audio
- Parameters
- 22B
- Deployment / access
- API · Open weights · Local
- Weights
- Open weights
- License
- LTX-2 Community License
- Capabilities
- Fine-tuning
First-party endpoint pricing
Bundled LICENSE/metadata specify the 2026-01-05 LTX-2 agreement; README links LICENSE-2_x. This conflict remains unresolved; use the license for your exact checkpoint/revision. Audio-to-video, Retake and Extend API access is Pro-only; Fast has no audio-to-video. Weights use community terms, distinct from Apache-2.0 app/code. Annual revenue ≥ USD 10M requires paid commercial licensing.
LTX-2.5AvailableOpen weightsAPI
- Model ID
Lightricks/LTX-2.5- Released
- Not stated
- Availability
- Available
- Input
- Text · Image · Audio · Video
- Output
- Video · Audio
- Parameters
- 22B
- Deployment / access
- API · Open weights · Local
- Weights
- Open weights
- License
- LTX-2.x Community License
- Capabilities
- Fine-tuning
First-party endpoint pricing
For LTX-2.5 API access, both ltx-2-5-fast and ltx-2-5-pro support the audio-to-video endpoint. 22B DiT backbone; its Gemma 4 12B text encoder is a separate component. Weight licensing is distinct from Apache-2.0 app/code licensing. Annual revenue >= USD 10M triggers paid commercial licensing; use the agreement corresponding to the checkpoint.