TerminalHorizon-35B-A3B
Scaling Agentic Data for Long-Horizon Terminal Intelligence
TerminalHorizon is a fully automated data synthesis engine for long-horizon terminal agents. Grounded in real-world professional work, it constructs executable environments and generates training trajectories that connect agentic behavioral patterns across stages toward a shared goal.
This repository releases TerminalHorizon-35B-A3B, obtained by supervised fine-tuning Qwen3.5-35B-A3B on TerminalHorizon-3K.
Resources
| Resource | Description |
|---|---|
| TerminalHorizon-Environment | Executable terminal-task environments. |
| TerminalHorizon-3K | Long-horizon training trajectories. |
| TerminalHorizon-27B | Fine-tuned Qwen3.5-27B. |
| TerminalHorizon-35B-A3B | Fine-tuned Qwen3.5-35B-A3B. |
| TerminalHorizon-122B-A10B | Fine-tuned Qwen3.5-122B-A10B. |
Model Overview
| Property | Value |
|---|---|
| Base model | Qwen/Qwen3.5-35B-A3B |
| Training method | Supervised fine-tuning |
| Training dataset | TerminalHorizon-3K |
| Training trajectories | 2,852 |
| Weight precision | BF16 |
| Checkpoint format | Hugging Face Transformers / Safetensors |
The terminal is a shared interaction interface, not a restriction to software tasks. The training environments span 25 professional domains and 463 subdomains, including software engineering, machine learning, education, agriculture, healthcare, finance, and scientific research.
TerminalHorizon focuses on meaningful work and connected agent behavior, rather than task length alone.

Load the Model
Use a version of Transformers that supports Qwen3.5 MoE:
from transformers import AutoProcessor, Qwen3_5MoeForConditionalGeneration
model_id = "shunzou05/TerminalHorizon-35B-A3B"
processor = AutoProcessor.from_pretrained(model_id)
model = Qwen3_5MoeForConditionalGeneration.from_pretrained(
model_id,
dtype="auto",
device_map="auto",
)
Refer to the base model documentation for inference and serving examples.
Citation
@misc{zou2026scalingagenticdatalonghorizon,
title={Scaling Agentic Data for Long-Horizon Terminal Intelligence},
author={Shun Zou and Ziyu Ma and Yi Zou and Yong Wang and Lin Chen and Zehui Chen and Guanhua Chen and Xiangxiang Chu and Feng Zhao},
year={2026},
eprint={2610.13166},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2610.13166},
}