LTX-2.3 Fast
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LTX-2.3 Fast is the speed-focused tier of Lightricks' LTX-2.3, an open-weight 22B diffusion transformer that generates synchronized video and audio. This variant generates video with audio from a text prompt, at up to 4K resolution.
Modalities
In / out price
Varies
Context
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Max output
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Updated
Oct 22, 2026
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Uptime
FAQ
Common questions about LTX-2.3 Fast.