# What frame counts, resolution rules and frame rates do the READMEs of LTX-Video, CogVideoX, Mochi, Wan and HunyuanVideo require, so a shot of a given duration can be specified correctly?

- id: art_01M5NBEXKEVQC2A4NNDKKP5FFM
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=metadata_checked, execution=not_run, review=unreviewed
- categories: T06, T09 · tags: none
- updated: 2026-10-23T21:42:50.728Z
- url: https://veyrul.com/articles/art_01M5NBEXKEVQC2A4NNDKKP5FFM

Partially verified: the curator re-read none of the cited sources; S12, S17, S6, S8, S19, S4, S3 rest on the producer's pinned reading. Frame counts have model-specific forms: Wan 4n+1 (defaults 81 and 121); LTX-Video 8n+1 with sizes divisible by 32 (padding otherwise); CogVideoX 8N+1 with N<=6 (default 49) for the original models and 16N+1 with N<=10 (default 81) for CogVideoX1.5; HunyuanVideo 129 in every listed setting; Mochi: README example uses 480x848 at 31 frames, rule not stated in the README. Frame rates stated: Wan 16 fps (24 for TI2V-5B), CogVideoX 8 fps (1.5: 16 fps), Wan2.2 TI2V-5B 24 fps. Duration = frames / fps, e.g. CogVideoX 49/8 = about 6 s as the README says.

Partially verified: the curator re-read none of the cited sources; S12, S17, S6, S8, S19, S4, S3 rest on the producer's pinned reading.

Frame counts have model-specific forms: Wan 4n+1 (defaults 81 and 121); LTX-Video 8n+1 with sizes divisible by 32 (padding otherwise); CogVideoX 8N+1 with N<=6 (default 49) for the original models and 16N+1 with N<=10 (default 81) for CogVideoX1.5; HunyuanVideo 129 in every listed setting; Mochi: README example uses 480x848 at 31 frames, rule not stated in the README. Frame rates stated: Wan 16 fps (24 for TI2V-5B), CogVideoX 8 fps (1.5: 16 fps), Wan2.2 TI2V-5B 24 fps. Duration = frames / fps, e.g. CogVideoX 49/8 = about 6 s as the README says.

Curator qualifications: Partially verified: the curator re-read none of the cited sources; S12, S17, S6, S8, S19, S4, S3 rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S12: HTTP 200, bytes differ from the producer pin; S17: HTTP 200, bytes differ from the producer pin; S6: HTTP 200, bytes differ from the producer pin; S8: HTTP 200, bytes differ from the producer pin; S19: HTTP 200, bytes differ from the producer pin; S4: HTTP 200, bytes differ from the producer pin; S3: HTTP 200, bytes differ from the producer pin.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/Lightricks/LTX-Video/blob/4b2d053057623ddd4d0a1d3e9cd28890e9ef487f/README.md",
      "note": "table"
    },
    {
      "url": "https://github.com/zai-org/CogVideo/blob/7a1af7154511e0ce4e4be8d62faa8c5e5a3532d2/README.md",
      "note": "table"
    },
    {
      "url": "https://github.com/Wan-Video/Wan2.2/blob/1ea34ff48f87168174e12956e200b1d908b1c5ff/generate.py",
      "note": "table"
    },
    {
      "url": "https://github.com/Tencent-Hunyuan/HunyuanVideo/blob/4eda9cb44c3be82a6b9c4261897cb6bd3cfb084e/README.md",
      "note": "table"
    },
    {
      "url": "https://github.com/genmoai/mochi/blob/674ce8814ed07a7a0fd62ce5abd077f9ea8f41ab/README.md",
      "note": "table"
    },
    {
      "url": "https://github.com/Wan-Video/Wan2.2/blob/1ea34ff48f87168174e12956e200b1d908b1c5ff/wan/configs/wan_ti2v_5B.py",
      "note": "table"
    },
    {
      "url": "https://github.com/Wan-Video/Wan2.2/blob/1ea34ff48f87168174e12956e200b1d908b1c5ff/wan/configs/shared_config.py",
      "note": "table"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Frame counts have model-specific forms: Wan 4n+1 (defaults 81 and 121); LTX-Video 8n+1 with sizes divisible by 32 (padding otherwise); CogVideoX 8N+1 with N<=6 (default 49) for the original models and 16N+1 with N<=10 (default 81) for CogVideoX1.5; HunyuanVideo 129 in every listed setting; Mochi: README example uses 480x848 at 31 frames, rule not stated in the README. Frame rates stated: Wan 16 fps (24 for TI2V-5B), CogVideoX 8 fps (1.5: 16 fps), Wan2.2 TI2V-5B 24 fps. Duration = frames / fps, e.g. CogVideoX 49/8 = about 6 s as the README says. · locator: table · source: https://github.com/Lightricks/LTX-Video/blob/4b2d053057623ddd4d0a1d3e9cd28890e9ef487f/README.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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