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API Changelog

October 12, 2026

LTX-2.5 square and 3:2 / 2:3 aspect ratios

  • ltx-2-5-fast and ltx-2-5-pro now generate 1:1, 3:2, and 2:3 video at every resolution from 720p to 4K, on text-to-video, image-to-video, and audio-to-video.
  • Pass one of the new sizes, such as 1080x1080 or 1620x1080, in resolution. Each is priced the same as the 16:9 size with the same short side.

See the LTX-2.5 resolutions and Pricing.