Lightricks Releases LTX-2.3, Open-Source Video Model With Sharper Detail and Native Vertical Format

Lightricks has released LTX-2.3, a major upgrade to its open-source video generation model. The update focuses on core engine improvements rather than interface changes: sharper visual detail, stronger motion coherence, cleaner audio generation, and native vertical video format support.

The company framed the release as a philosophical shift. "For decades, creative software has been defined by its interface," Lightricks stated in the announcement. "We think the next era gets defined by the engine underneath."

Engine Upgrades: What's New in LTX-2.3

LTX-2.3 is positioned as a production-ready multimodal engine designed to be built on top of. For the first time, Lightricks is shipping both the engine itself and the tools it built on top of it.

Key improvements:

• Sharper detail — Enhanced visual fidelity in generated video

• Stronger motion — Improved motion coherence and fluidity

• Cleaner audio — Better audio generation quality

• Native vertical format — Built-in support for vertical video (9:16), eliminating post-processing for mobile and social content

The API is available at launch, allowing developers and studios to integrate LTX-2.3 into their own workflows.

Open-Source and Community Response

LTX-2.3 remains open-source, consistent with Lightricks' approach to the LTX model family. The open-source community has responded enthusiastically, noting the rapid iteration cycle of the LTX model family.

Community members have flagged hardware requirements as a practical constraint: the model size is approximately 47GB, requiring substantial GPU memory for local deployment. This remains a barrier for smaller studios and independent creators working with consumer-grade hardware.

Context: Building on LTX's Momentum

We previously covered LTX Desktop, Lightricks' local video generation tool for NVIDIA GPUs. LTX-2.3 represents the next phase of the company's strategy: a powerful, open-source engine that studios can build on, rather than a single consumer-facing application.

The vertical format support is particularly relevant for content creators and studios producing for social platforms and mobile-first distribution. Rather than generating landscape video and cropping or pillarboxing for vertical playback, creators can now generate vertical video natively.

What This Means for Workflows

For studios and developers, LTX-2.3 offers a foundation for custom video generation pipelines. The multimodal engine and available API mean teams can integrate it into existing production workflows rather than adopting a standalone tool.

For independent creators and smaller studios, the hardware requirements remain a practical limitation. The 47GB model size requires significant GPU investment, making local deployment inaccessible for many. Cloud-based access or lighter model variants would expand accessibility.

Full technical details and documentation are available at ltx.video.