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TiRex

NX-AI

This repository provides the pre-trained forecasting model TiRex introduced in the paper TiRex: Zero-Shot Forecasting across Long and Short Horizons with Enhanced In-Context Learning. TiRex is a 35M parameter pre-trained time series forecasting model based on xLSTM. - **Zero-Shot Forecasting**: TiRex is a pre-trained model that performs time series forecasting without requiring any training on your data. Simply download and use it.

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TiRex-2

NX-AI

This repository provides the pretrained TiRex-2 model and inference code for zero-shot multivariate forecasting with past and future-known covariates, as introduced in TiRex-2: Generalizing TiRex to Multivariate Data and Streaming. TiRex-2 is a pretrained time series foundation model that forecasts one or many target variates directly from their history, optionally conditioned on past and future-known covariates. A single checkpoint serves both univariate and multivariate forecasting and operates in a streaming fashion as new observations arrive — all zero-shot, with no task-specific training or fine-tuning. TiRex-2 generalizes our original univariate model, TiRex, to multivariate forecasting with past and future covariates.

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This xLSTM-7B was pre-trained on the DCLM and selected high-quality data for in a total of approx. 2.3 T tokens using the `xlstm-jax` framework. First, install `xlstm`, which now uses the `mlstm_kernels` package for triton kernels (tested on python 3.11): If you cannot or do not want to use the triton kernels, you can change them to native PyTorch implementations:

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COST EXPLORER

好模型,也要算好成本。

费用分析

调整月度 Token 用量,直观比较不同模型的预估 API 开支。

1 M = 100 万 Token · 美元计价
仅比较同一渠道的基础文本 Token 报价

使用已采集且单位可比的 USD / 百万 Token 渠道报价。报价为采集时快照;不计缓存优惠、阶梯价、推理额外输出与税费,请以来源的当前报价为准。

MODEL HANDBOOK

读懂模型,再做选择

选型与常见问题
API 价格应该怎么比较?+

先区分输入、输出和缓存价格,再使用同一任务和用量估算总费用。图像、音频和视频可能按张、时长或分辨率计费,不能直接与 Token 单价比较。

开放权重,就代表可以免费商用吗?+

不一定。必须逐一核对具体模型版本的许可证、商用限制及使用政策。自己部署还需要考虑显存、推理资源和运维费用。

排行榜第一,就是最适合我的模型吗?+

榜单取决于测试任务、版本与评测方法。建议用实际业务样本比较准确性、时延、稳定性和成本,再选择模型。

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