veizik WAN (CUDA) v1.2.92 — Wan 2.1 & Wan 2.2 video — cuda-wan-1.2.92

Text-to-video and image-to-video with Wan2.1-T2V-1.3B, Wan2.1-T2V-14B, Wan2.2-T2V-A14B and Wan2.2-I2V-A14B on your own NVIDIA GPU. Veizik runs the models through its own native engine: no Python, no CUDA toolkit. You supply the weights; the frames are written as PNG files to the folder you name. It also runs a resident render server with a host-loop (bin/veizik-resident) that keeps one process and one GPU context across requests, and mid-render preemption. Distributed as a single signed .vzpack, and render-verified fresh on the shipped bytes (RTX 3090, sm_86).

This page records the state as of 2026-10-31 and is not updated as the catalogue moves. For what runs now, see models.

This build has been superseded and is no longer distributed. The digest below still identifies it, so a copy you already hold can be checked against it. The current build is cuda-wan-1.2.93.

sha256 940318320e2e6dc59295f0acebf62c56830ad732df158a6b74859a36bc5c7249

What this build does

• veizik run <model key> "prompt" --out DIR renders a video and writes its frames as PNG files to DIR/frames/; nothing is written inside the package.
• Serve: veizik serve <model> runs a resident render server that renders request after request in one process and one GPU context, with results bit-identical to veizik run.
• Four modes: quality (the reference path and the default), balanced, fast and ultrafast.
• An interrupted render continues from its last step with --resume, and the result is identical to a render that never stopped.
• Every file of the package is checked against its sealed manifest before each run.
• GPU code for sm_80, sm_86, sm_89, sm_90a, sm_100a and sm_120a.
• Every frame it writes carries the provenance mark described in the Terms: an in-pixel watermark plus XMP DigitalSourceType trainedAlgorithmicMedia.
• Distributed as a single signed .vzpack: veizik install wan22 fetches and verifies it (and the shared-core .vzroot once) from its GitHub release and refuses any other file.
• mid-render preemption — POST /v1/videos/generations with "priority": "urgent" interrupts a running render at a step boundary, is served, then the first render resumes from its checkpoint.

Models in this release

Platform

Linux on x86-64

Verification

`veizik install` checks the download against SHA-256 940318320e2e6dc59295f0acebf62c56830ad732df158a6b74859a36bc5c7249 and refuses any other file. The release is reproducible: SHA256SUMS on the release, a single-file .vzpack with a signed .vzindex. To check veizik-wan-1.2.92-linux-x86_64.vzpack by hand, compare it with sha256sum.

File

veizik-wan-1.2.92-linux-x86_64.vzpack — no longer downloadable

Size

6,970,958 bytes

SHA-256

940318320e2e6dc59295f0acebf62c56830ad732df158a6b74859a36bc5c7249

GPU architectures

sm_80, sm_86, sm_89, sm_90a, sm_100a, sm_120a

Run end to end on

GeForce RTX 3090 (sm_86)

Release

v1.2.92

Get, install, activate

# the veizik command for Linux x86-64
$ curl -fsSL https://veizik.com/install.sh | sh
# if the installer asks you to put ~/.local/bin on your PATH
$ export PATH="$HOME/.local/bin:$PATH"
# accepted names: wan21, wan22 or a full model key (wan21_t2v_1_3b, wan21_t2v_14b, wan22_t2v_a14b, wan22_i2v_a14b, wan22_i2v_a14b_lightning); any case; '.' and '-' work too (wan2.2)
$ veizik install wan22
$ veizik activate

Run `veizik activate` once per device after `veizik install`. Then `veizik pull wan22` fetches the Wan weights and prepares the video decoder for you — no manual VAE setup or support request. Activation itself does not need the weights; rendering does. veizik install refuses a download whose SHA-256 differs from this release. The other packages are on the download page.

Fixed issues

• Fixes the 1.2.91 build, which did not run: the launcher now matches the sealed manifest (the earlier 'exit 4' integrity mismatch is gone), the native engine loads correctly, and the LoRA forward path resolves at full rank.
• Render-verified fresh on the shipped bytes by our own testing (RTX 3090, sm_86), rather than carried from a previous build.

Known issues in cuda-wan-1.2.92

• Model weights are not included. veizik pull wan22 downloads the Wan2.1/2.2 weights (Apache-2.0) and prepares the video decoder automatically — no manual VAE setup; veizik pull --prep-local DIR prepares weights you already have.
• Speed figures for this package were measured on an NVIDIA RTX 3090 (sm_86) only.
• The image-to-video model takes its input image as raw RGB bytes, one byte per channel, at exactly the render size (width × height × 3 bytes).
• balanced, fast and ultrafast are not bit-identical to quality; without --det-vae yes decoded frames may differ slightly from run to run.
• A distilled image-to-video Lightning model is render-verified for this build and is being enabled on the site with its own benchmark; it is not yet listed as a separate model key.