Project AURIONAI Use-Cases Research & Innovation
NX-AI
time series

TiRex

NX-AI xLSTM time-series model (Linz; Chief Scientist Sepp Hochreiter).

NX-AINX-AIAustria
Figure from the TiRex paper: architecture overview with xLSTM blocks and residual input and output blocks.
Levelmodel
Classtime series
Parametersnot in the notes
Contextnot in the notes
Released26 May 2025
Opennessopen weights restricted
Runs onnot in the notes
Statusactive

Benchmark Results

vendor-reportedindependent
GIFT-Evaltime series
zero-shot foundation-model CRPS rank, lower is bettervendor-reported
23.9
02040

Score in mean CRPS rank. Lower is better.

Toto 2.0 report (Datadog)Jun 2026 arxiv.org
zero-shotindependentno test-data leakage
0.716
00.71.4

Score in MASE (geo-mean, normalised to Seasonal Naive). Lower is better.

Leaderboard rebuilt from the published raw results, 143 entries covering all 97 configurations9 Oct 2026 huggingface.co
zero-shot; rank is average CRPS rankindependentno test-data leakage
0.488
00.51

Score in CRPS (geo-mean, normalised to Seasonal Naive). Lower is better.

rank 62 of 143, Leaderboard rebuilt from the published raw results, 143 entries covering all 97 configurations9 Oct 2026 huggingface.co
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).

Lineage

successor
TiRex to TiRex-2: successor, medium confidenceTiRexTiRexNX-AI, May 2025TiRex-2TiRex-2NX-AI, Jun 2026
NX-AITiRex-2 is a child (successor)medium confidencenotes
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 2 models. Confidence and evidence are the notes' own.

R&D Topics

Time-series foundation modelsproduced by

Identity

Developer
NX-AI
Family
not in the notes
Released
26 May 2025 sourcesregistry date
Weights published
–
Record checked
10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
other xLSTM-based
Total parameters
– sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
time series
Output
time series
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
open weights restricted
Licence
NX-AI Community License sources
Access routes
open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Industry Use Cases

No industry use case links this model.

Sources

  1. arxiv.org/pdf/2605.20119 https://arxiv.org/pdf/2605.20119
  2. NXAI: Minds for Machines nx-ai.com https://www.nx-ai.com/
  3. GIFT Eval - a Hugging Face Space by Salesforce huggingface.co https://huggingface.co/spaces/Salesforce/GIFT-Eval
  4. huggingface.co/api/models/NX-AI/TiRex https://huggingface.co/api/models/NX-AI/TiRex

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "TiRex", https://aurion.semai.id/models/nx-ai-tirex/, records of October 2026.