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T-pro 2.0: An Efficient Russian Hybrid-Reasoning Model and Playground

Published: December 11, 2025 | arXiv ID: 2512.10430v1

By: Dmitrii Stoianov , Danil Taranets , Olga Tsymboi and more

Potential Business Impact:

Helps computers understand and answer Russian questions faster.

Business Areas:
Natural Language Processing Artificial Intelligence, Data and Analytics, Software

We introduce T-pro 2.0, an open-weight Russian LLM for hybrid reasoning and efficient inference. The model supports direct answering and reasoning-trace generation, using a Cyrillic-dense tokenizer and an adapted EAGLE speculative-decoding pipeline to reduce latency. To enable reproducible and extensible research, we release the model weights, the T-Wix 500k instruction corpus, the T-Math reasoning benchmark, and the EAGLE weights on Hugging Face. These resources allow users to study Russian-language reasoning and to extend or adapt both the model and the inference pipeline. A public web demo exposes reasoning and non-reasoning modes and illustrates the speedups achieved by our inference stack across domains. T-pro 2.0 thus serves as an accessible open system for building and evaluating efficient, practical Russian LLM applications.


Page Count
23 pages

Category
Computer Science:
Computation and Language