LTX-2.5
Needs 27 GB at FP8 / INT8. The smallest real configuration today is 1× Tesla V100 32GB at Vast.ai, $0.07 per hour, about $50 a month at 730 hours.
- Per hour
- $0.07
- Per month
- $50
- Cheapest at
Vast.ai
What is documented about LTX-2.5
news checked 2026-10-27Some listings give 19B; the published weight files are named 22b, and the repo is 70 GB in BF16 (read 2026-10-27).
- https://huggingface.co/Lightricks/LTX-2.5
- https://huggingface.co/api/models/Lightricks/LTX-2.5?blobs=true
How much VRAM it needs
Weights plus 20% runtime overhead. For video models, activations also depend on resolution, clip length and batch size; the per-GPU estimates below give the practical configuration.
| Precision | Weights | Weights + headroom |
|---|---|---|
| BF16published checkpoint | 74 GB | 89 GB |
| FP8 / INT8estimated | 22 GB | 27 GB |
| INT4 / MXFP4estimated | 13 GB | 16 GB |
What it costs to run, GPU by GPU
The fewest GPUs of one type whose total memory fits the model at short context, priced from the cheapest eligible on-demand offer for exactly that count (45-day window, newest reading per provider), with the next providers beside it. Monthly = 730 hours.
| GPU | Smallest config | VRAM used | $ / hour | $ / month | Cheapest at |
|---|---|---|---|---|---|
| Tesla V100 32GBBest fit | 1× 32 GB32 GB total | 83% | $0.07 | $50 | |
| T4 | 2× 16 GB32 GB total | 83% | $0.08 | $59 | |
| Tesla P100 | 2× 16 GB32 GB total | 83% | $0.10 | $70 | |
| RTX A4000 | 2× 16 GB32 GB total | 83% | $0.14 | $105 | |
| RTX PRO 2000 | 2× 16 GB32 GB total | 83% | $0.15 | $106 | |
| RTX 3060 | 4× 12 GB48 GB total | 55% | $0.16 | $118 | |
| RTX 5060 Ti | 2× 16 GB32 GB total | 83% | $0.19 | $137 | |
| Tesla V100 16GB | 2× 16 GB32 GB total | 83% | $0.19 | $138 | |
| Quadro RTX 5000 | 2× 16 GB32 GB total | 83% | $0.20 | $148 | |
| GTX 1080 | 4× 8 GB32 GB total | 83% | $0.20 | $150 | |
| RTX 3090 | 2× 24 GB48 GB total | 55% | $0.21 | $157 | |
| RTX 2070 | 4× 8 GB32 GB total | 83% | $0.22 | $157 | |
| RTX 5090 | 1× 32 GB32 GB total | 83% | $0.22 | $158 | |
| RTX 3060 Ti | 4× 8 GB32 GB total | 83% | $0.22 | $159 | |
| Quadro RTX 8000 | 1× 48 GB48 GB total | 55% | $0.23 | $167 | |
| GTX 1070 Ti | 4× 8 GB32 GB total | 83% | $0.23 | $169 | |
| RTX 2070 Super | 4× 8 GB32 GB total | 83% | $0.24 | $177 | |
| Titan RTX | 2× 24 GB48 GB total | 55% | $0.27 | $196 | |
| Titan Xp | 4× 12 GB48 GB total | 55% | $0.27 | $196 | |
| L40 | 1× 48 GB48 GB total | 55% | $0.27 | $196 | |
| RTX 2080 Ti | 4× 11 GB44 GB total | 60% | $0.28 | $202 | |
| RTX 4070 Ti Super | 2× 16 GB32 GB total | 83% | $0.29 | $213 | |
| RTX 5070 Ti | 2× 16 GB32 GB total | 83% | $0.32 | $235 | |
| RTX A6000 | 1× 48 GB48 GB total | 55% | $0.33 | $241 | |
| The 24 cheapest of 82 GPU types that fit. Every GPU, any precision and context, in the finder | |||||
Estimated speed, in min per clip
Video. Speed estimated from memory bandwidth and model size, never measured. The cost per video second is an estimate at the prices read on Oct 4, 2026; it is not recomputed here.
| GPU | Cards | Precision | min per clip | per video second · estimate |
|---|---|---|---|---|
| RTX 5090 | 1 | FP8 | 5.5 | $0.009 |
| RTX 4090 | 2 | FP8 | 5.8 | $0.009 |
| L40S | 1 | FP8 | 7.6 | $0.014 |
| RTX PRO 6000 | 1 | FP8 | 3.9 | $0.015 |
| H100 SXM | 1 | FP8 | 3.1 | $0.019 |
| H100 PCIe | 1 | FP8 | 4.3 | $0.019 |
| B200 | 1 | FP8 | 1.6 | $0.021 |
| A100 80GB | 1 | BF16 | 7.3 | $0.023 |
| H200 | 1 | FP8 | 2.9 | $0.024 |
| MI300X | 1 | FP8 | 4.5 | $0.024 |
