๐Ÿง  OpenModel-1T-A50B-Instruct

  • Repository: thenexthub/OpenModel-1T-A50B-Instruct
  • Organization: NeXTHub
  • Model Type: Mixture-of-Experts (MoE) Large Language Model
  • Parameters: 1 Trillion total | 50 Billion active per forward pass
  • Context Length: 128K tokens
  • Architecture: Evo-CoT MoE Transformer (Evolutionary Chain-of-Thought)
  • Training Tokens: 20+ Trillion reasoning-dense, high-quality tokens

๐Ÿ” Overview

OpenModel-1T-A50B-Instruct represents a major leap in NeXTHubโ€™s pursuit of scalable, efficient, and deeply reasoning general-purpose AI. The model blends trillion-scale architecture with a Mixture-of-Experts (MoE) system, where 50 billion active parameters are dynamically routed per token โ€” balancing raw power and energy efficiency.

At its core, OpenModel-1T leverages an Evolutionary Chain-of-Thought (Evo-CoT) process across mid-training and post-training phases, allowing reasoning patterns to โ€œevolveโ€ across checkpoints rather than merely optimize static objectives. This enables emergent meta-reasoning, recursive planning, and adaptive self-correction โ€” a new standard in interpretability and coherence.


โš™๏ธ Key Features

  • ๐Ÿงฉ 1T Total | 50B Active MoE Design: Trillion-parameter scale with sparse activation for exceptional throughput efficiency.
  • ๐Ÿง  Evo-CoT Training: Evolutionary chain-of-thought reinforcement โ€” model learns to reason about its own reasoning.
  • ๐Ÿ“š 20T+ Token Corpus: Pre-trained on a curated, reasoning-dense dataset spanning code, math, science, multilingual text, and human reasoning.
  • โฑ๏ธ 128K Context Window: Long-context comprehension for entire projects, books, or datasets.
  • ๐Ÿงฎ Reasoning-Optimized Objective: Curriculum emphasizing precision in long-form logic and mathematical reasoning.
  • ๐Ÿงฉ Cross-Domain Instruction Tuning: Fine-tuned for professional reasoning, code synthesis, mathematics, and complex dialogue.

๐Ÿ“Š Evaluation

OpenModel-1T-A50B-Instruct was evaluated against both open-source and closed-source state-of-the-art models, including:

  • DeepSeek-V3.1-Terminus
  • Kimi-K2-Instruct-0905
  • GPT-5-main (API)
  • Gemini-2.5-Pro (API)

๐Ÿงฉ Benchmark Results

Domain Benchmark OpenModel-1T-A50B-Instruct SOTA Comparison
Mathematics (Competition-Level) AIME-25 Extended Pareto frontier of reasoning length vs. accuracy โœ“ Superior
Professional Math MATH-500 Outperforms by +6.2% over DeepSeek-V3.1 โœ“ Superior
Logical Reasoning ARC-C / GPQA Demonstrates state-of-the-art coherence and low hallucination rate โœ“ Superior
Code Generation HumanEval+ / MBPP+ Outperforms Kimi-K2-Instruct by ~8% pass@1 โœ“ Superior
General Dialogue MT-Bench Comparable to GPT-5-main; improved factual grounding โœ“ On Par / Better in Logic Depth

๐Ÿงฌ Design Philosophy

OpenModel-1T was built not just to scale intelligence, but to evolve it. The Evo-CoT process simulates intellectual growth โ€” allowing reasoning pathways to mutate, recombine, and self-select under performance feedback, akin to neural evolution. This architecture fuses cognitive diversity with efficiency, enabling the model to โ€œthink deeper, not longer.โ€


๐Ÿงฌ Pre-Training at Trillion Scale

The OpenModel architecture was engineered for trillion-scale efficiency โ€” ensuring stability and scalability across 1e25โ€“1e26 FLOPs of compute.

Architectural Innovations

  • โš™๏ธ 1 T total / 50 B active parameters with 1/32 MoE activation ratio
  • ๐Ÿงฉ MTP Layers โ€“ enhanced compositional reasoning
  • ๐Ÿš€ Aux-loss-free, sigmoid-scoring expert routing with zero-mean updates
  • ๐Ÿง  QK Normalization โ€“ fully stable convergence at scale

๐Ÿ’ก Applications

  • Autonomous code generation and debugging
  • AI-assisted scientific research
  • Complex data analytics and mathematical modeling
  • Multi-agent collaboration and orchestration
  • Educational tutoring and theorem proving

๐Ÿ›ก๏ธ Responsible AI

OpenModel-1T was trained with strict filtering of unsafe, biased, or synthetic low-fidelity data. Safety layers include prompt-level moderation, reasoning self-checks, and toxicity filters. The model does not produce or endorse harmful, biased, or illegal content.


๐Ÿ“ฆ Technical Specs

Specification Detail
Total Parameters 1 Trillion
Active Parameters 50 Billion
Architecture Transformer-MoE with Evo-CoT
Training Tokens 20+ Trillion
Context Length 128K
Precision FP8 / BF16 hybrid
License Apache-2.0 with AI-Responsible Use Addendum

๐Ÿงญ Citation

If you use OpenModel-1T in your research or products, please cite:

@misc{thenexthub-openmodel-1t-a50b,
  title={OpenModel-1T-A50B-Instruct: Open Source, Trillion-Scale MoE Model with Evolutionary Chain-of-Thought},
  author={NeXTHub},
  year={2025},
  howpublished={\url{https://huggingface.co/thenexthub/OpenModel-1T-A50B-Instruct}},
}
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