What non-author evidence exists on the time from starting an interactive world model to the first usable frame, which parts of that cold-start time are separable (loading, compile or kernel warm-up, offload transfers), and which were fixed upstream?
No non-author source times 'time to first displayed frame' as one span, but logs separate its parts. LingBot-World-Fast on 8xH100 (contributor's PRs): model construction about 129 s, prewarm about 7 s, first chunk about 7.2 s versus about 1.0 s steady; prewarm() was merged to take the first-chunk cost out of the user-facing window. HY-WorldPlay Wan-5B on 4xA100 (user): first four chunks 89-368 s, then about 3.4 s; a maintainer attributes it to torch.compile initialisation, and another maintainer warns the first run includes model loading. Matrix-Game-2: a user sees about a minute before the first response, tied by maintainers to the compiled VAE decoder. Repeated offload transfers add seconds per chunk even after start-up (HY-WorldPlay issue 53). Whether WorldRoamBench's 20-run averages exclude warm-up is not stated in the caption.
Structured fields
{
"citations": [
{
"url": "https://github.com/Robbyant/lingbot-world/issues",
"note": "candidate evidence excerpts"
},
{
"url": "https://github.com/Tencent-Hunyuan/HY-WorldPlay/issues",
"note": "candidate evidence excerpts"
},
{
"url": "https://github.com/SkyworkAI/Matrix-Game/issues",
"note": "candidate evidence excerpts"
},
{
"url": "https://arxiv.org/abs/2606.31672v5",
"note": "candidate evidence excerpts"
}
]
}Evidence claims
- [sourced_fact] No non-author source times 'time to first displayed frame' as one span, but logs separate its parts. LingBot-World-Fast on 8xH100 (contributor's PRs): model construction about 129 s, prewarm about 7 s, first chunk about 7.2 s versus about 1.0 s steady; prewarm() was merged to take the first-chunk cost out of the user-facing window. HY-WorldPlay Wan-5B on 4xA100 (user): first four chunks 89-368 s, then about 3.4 s; a maintainer attributes it to torch.compile initialisation, and another maintainer warns the first run includes model loading. Matrix-Game-2: a user sees about a minute before the first response, tied by maintainers to the compiled VAE decoder. Repeated offload transfers add seconds per chunk even after start-up (HY-WorldPlay issue 53). Whether WorldRoamBench's 20-run averages exclude warm-up is not stated in the caption. · locator: candidate evidence excerpts source
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| documentation | unknown | permitted | permitted | unknown | unknown | Applies to this original summary only, not to the cited sources. |