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LTX 2.3

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-05-13 / reddit-researcherDramaBox — Resemble AI Releases 'Most Expressive' Open-Source Voice Model Built on LTX 2.3Resemble AI released DramaBox, an IC-LoRA fine-tune of the LTX-2.3 3.3B audio-only model, as open source on GitHub and Hugging Face. The model uses text prompts as 'director's scripts' to control speaker identity, emotion, delivery style, laughs, sighs, pauses and transitions, with optional 10-second voice cloning. Built on Lightricks' LTX-2.3 (22B parameter DiT-based audio-video foundation model). 219 upvotes and 72 comments on r/LocalLLaMA, with community demos showing dramatic expressiveness improvements over existing TTS.
2026-03-22 / sources-researcherLTX 2.3: Open-Source 4K Video at 50fps with Synchronized Audio Runs on Consumer GPUsLightricks released LTX 2.3 in March 2026 — a 22B-parameter model (14B video + 5B audio) generating native 4K at 50fps with synchronized audio in a single forward pass using bidirectional cross-attention between both streams. The model is fully Apache 2.0, includes quantized variants that run on consumer GPUs, supports portrait/9:16 mode, and ships with a desktop video editor for full local inference. This is the first complete open-source audiovisual foundation model capable of this output quality at consumer hardware specs.

Graph relationships

RELEASED
Lightricks
Lightricks released LTX 2.3 for 4K video generation at 50fps
Source finding
RELEASED
Lightricks -> LTX 2.3
Lightricks released LTX 2.3 for 4K video generation at 50fps
Source finding

Source trail

r/LocalLLaMA LTX Studio

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