# LTX-2.3 AI video generator

URL: https://dreambench.ai/models/ltx-2.3

LTX-2.3 generates picture and sound in one pass, in widescreen or vertical video. On DreamBench it can make every scene of your video, at up to 4K, and you can redo any scene without starting over.

**What LTX-2.3 is.** LTX-2.3 is a video model from Lightricks, released in March 2026. It generates picture and stereo sound together in a single pass, and Lightricks publishes its weights openly as well. Compared with LTX-2, Lightricks reworked it for sharper textures, hair and edges, closer attention to complex prompts, cleaner sound and livelier movement when it animates a still image. It was also trained on vertical footage, so 9:16 video isn’t cropped from a widescreen frame. Lightricks now calls LTX-2.3 its previous generation: LTX-2.5, released in August 2026, is its current model, and LTX-2.3 remains fully supported.

**What LTX-2.3 is good at.**
- Made for vertical too: Lightricks trained LTX-2.3 on portrait footage, so 9:16 video is composed for a phone screen instead of being cropped from a 16:9 frame.
- Movement from a still: Lightricks retrained its image-to-video so a single frame more often turns into genuine movement, with fewer frozen clips and fewer slow pan-and-zoom shots. Name a specific action and a camera move in your prompt, and give the scene new direction if a clip still sits still.
- Crisper textures and edges: Lightricks rebuilt the model’s image encoding, so fine textures, hair, lettering and edges keep more of their detail.
- Sound in the same pass: With sound on, LTX-2.3 generates stereo audio together with the picture, and Lightricks filtered its training data for fewer artifacts and dropouts.

**LTX-2.3 on DreamBench.**
- At 720p, DreamBench makes each clip with LTX-2.3 Fast, the variant Lightricks built for quick iteration and previews. 1080p and 4K use LTX-2.3 Pro, built for final renders.
- DreamBench makes every LTX-2.3 clip at 24 frames per second, the rate it joins all clips at. Lightricks’ own API also offers 25, 48 and 50.
- For each clip, DreamBench makes an opening frame from your reference images, or from the characters, props and places it designs, and LTX-2.3 animates it.
- Through Lightricks’ own API, LTX-2.3 can also make clips of up to 20 seconds, extend or retake a clip and generate from an audio track, and Lightricks supports LoRA training for people who run the model themselves. On DreamBench, each clip runs up to 10 seconds, the camera is steered from your prompt, and you change a scene by giving it new direction.

**Specifications.**
- Made by: Lightricks
- Longest clip: 10 seconds per generation
- Video length on DreamBench: Up to 30 seconds on Starter, 2 minutes on Plus and 5 minutes on Ultra and Studio
- Resolution: 720p, 1080p and 4K (4K on Plus, Ultra and Studio)
- Aspect ratios: 16:9 and 9:16
- Sound: On or off, your choice
- Reference images: Up to 8 per video; the first 4 are included, then 43 credits each
- Plans: Every plan
- Credits: 25 per second at 720p, 29 per second at 1080p and 79 per second at 4K, plus 183 per video
- A 15-second 720p video with sound uses 558 credits.

**Prompt ideas.**
- Heron at dawn: Hand-painted watercolor animation, vertical 9:16. A gray heron stands still in a misty reed bed at dawn, then unfolds its wings and lifts off low over the water. Loose washes of pink and gold bleed at the edges, and the paper’s texture shows through every ripple. Reeds rustling, water dripping from its feet, one soft call.
- Low-poly lighthouse: Widescreen 16:9, low-poly 3D animation. A faceted lighthouse on a cliff sweeps its beam across a flat-shaded sea at dusk, while geometric waves roll in and break into triangles of foam. Polygon clouds drift past a pale, many-sided moon, and a tiny boat bobs home toward the harbor. Soft surf and a slow, humming wind.
- Gold into blue: Widescreen 16:9 abstract macro, 10 seconds. Drops of molten gold fall in slow motion into a pool of deep blue oil and bloom into marbled swirls, catching the light as they spread and fold into each other. Tiny bubbles rise through the color. No people, no objects, no text, just a low, warm hum.

**LTX-2.3 FAQ.**
- **What is LTX-2.3?** LTX-2.3 is a video model from Lightricks, launched in March 2026. It generates picture and sound together in one pass, in widescreen or vertical video, and Lightricks also publishes its weights openly.
- **Is LTX-2.3 Lightricks’ latest model?** No. Lightricks released LTX-2.5 in August 2026 and now calls LTX-2.3 its previous generation, while keeping it fully supported. DreamBench offers LTX-2.3.
- **How is LTX-2.3 different from LTX-2?** Lightricks rebuilt the image encoding for sharper textures, hair and edges, made the model follow complex prompts more closely, cleaned up the sound and improved image-to-video. It also trained it on vertical footage, so 9:16 isn’t cropped from a widescreen frame.
- **What’s the difference between LTX-2.3 and LTX-2.5?** LTX-2.5 is Lightricks’ newer model, released in August 2026. It adds connected shots in one generation, a clip length the model picks from the action, and HDR output. Lightricks keeps LTX-2.3 fully supported as its previous generation, and DreamBench offers LTX-2.3 at 720p, 1080p and 4K.
- **How long can an LTX-2.3 video be on DreamBench?** Each clip LTX-2.3 generates on DreamBench runs up to 10 seconds. A whole video can be longer, up to 5 minutes depending on your plan, because DreamBench plans the scenes and joins the clips into one video.
- **What resolution does LTX-2.3 use on DreamBench?** LTX-2.3 videos come in 720p, 1080p or 4K on DreamBench, with 4K on Plus and above. DreamBench uses LTX-2.3 Fast for 720p and LTX-2.3 Pro for 1080p and 4K: Lightricks built Fast for quick iteration and previews and Pro for final renders, so you pick between them by choosing a resolution. Every video is widescreen (16:9) or vertical (9:16), and Lightricks trained the model on portrait footage, so 9:16 is composed for a phone screen rather than cropped.
- **Does LTX-2.3 make sound?** Yes. With sound on, LTX-2.3 generates stereo audio together with the picture in a single pass, and Lightricks filtered its training data for fewer artifacts and dropouts. On DreamBench a second costs the same with sound on or off; switch sound off in the composer if you want picture only.
- **How much does LTX-2.3 cost on DreamBench?** LTX-2.3 uses credits for each second of video, at a rate that depends on the resolution and stays the same with sound on or off, plus a base amount per video. The table on this page shows the current rates, and you always see the exact cost before you generate.
- **Does LTX-2.3 cost anything to use?** Yes. On DreamBench, each LTX-2.3 video uses credits, which come with a paid plan, and LTX-2.3 is on every plan, with 4K on Plus and above. A second costs the same with sound on or off, and the composer shows the exact cost before you generate.
- **Can I run LTX-2.3 myself?** Yes. Lightricks publishes LTX-2.3’s weights on Hugging Face under its LTX Model License, and companies with more than $10 million in annual revenue need a commercial license from Lightricks. The full model wants a GPU with plenty of memory, and Lightricks offers a quantized version for machines with less. On DreamBench there is nothing to install: pick LTX-2.3 in the composer, in the browser on a phone, tablet or computer, and generate at up to 4K.
- **What should an LTX-2.3 prompt say?** Say the format, 16:9 or 9:16, and the length, describe the movement you want from the still, then the sound. Lightricks notes that LTX-2.3 turns a still into real movement more often than LTX-2, so name the action rather than the mood.
- **Should I use LTX-2.3 or Wan 2.7 on DreamBench?** Both are on DreamBench, so run the same brief on each and keep the one you prefer. LTX-2.3 makes clips of up to 10 seconds with stereo sound, in 16:9 or 9:16, at 720p, 1080p or 4K; the Wan 2.7 page, linked below, states its own limits.
- **Does DreamBench have an LTX-2.3 API?** No. DreamBench offers LTX-2.3 through its composer, in the browser on a phone, tablet or computer, with nothing to install. Developers can use Lightricks’ own API, documented on ltx.io, where the prices and limits are Lightricks’, not DreamBench’s.
- **Do LTX-2.3 videos have a watermark on DreamBench?** Videos made on the Starter plan carry a small DreamBench watermark; Plus, Ultra and Studio remove it. The sound and picture are otherwise as LTX-2.3 generated them.
- **Can I choose LTX-2.3’s frame rate on DreamBench?** No. DreamBench makes every LTX-2.3 clip at 24 frames per second, so clips join cleanly into one video.
- **Can I use LTX-2.3 videos commercially?** Yes. DreamBench’s Terms of Use allow personal and commercial use, including ads and client work. You need the rights to anything you upload.
- **Which DreamBench plans include LTX-2.3?** Available on every plan. Video length depends on the plan: up to 30 seconds on Starter, 2 minutes on Plus and 5 minutes on Ultra and Studio.
- **What aspect ratios does LTX-2.3 support on DreamBench?** 2: 16:9 and 9:16. Pick the ratio in the composer, or name it in the prompt and DreamBench sets it for you.
- **How do I make a video with LTX-2.3 on DreamBench?** Press Create with LTX-2.3, or pick it in the composer, and describe the video you have in mind. DreamBench writes the scene plan, generates every scene with LTX-2.3 and joins them into one video. Then give any scene new direction and keep the rest.

**Sources.**
- LTX-2.3 on ltx.io: https://ltx.io/model/ltx-2-3
- LTX-2.3 launch announcement (LTX newsroom): https://ltx.io/newsroom/ltx-2-3-offers-creative-intelligence-without-the-cloud-costs

LTX-2.3 is developed by Lightricks (https://ltx.io/). DreamBench is an independent platform that offers LTX-2.3 alongside other models and isn't affiliated with or endorsed by Lightricks. LTX-2.3 and Lightricks are trademarks of their owners, used here only to name the model and its developer. Released 2026-03. Facts last checked 2026-10-14.